Log in

Relevant bibliographies by topics / Multichannel Analysis of Surface Wave (MASW) Survey / Journal articles

To see the other types of publications on this topic, follow the link: Multichannel Analysis of Surface Wave (MASW) Survey.

Journal articles on the topic 'Multichannel Analysis of Surface Wave (MASW) Survey'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Multichannel Analysis of Surface Wave (MASW) Survey.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Mi, Binbin, Jianghai Xia, Chao Shen, Limin Wang, Yue Hu, and Feng Cheng. "Horizontal resolution of multichannel analysis of surface waves." GEOPHYSICS 82, no. 3 (2017): EN51—EN66. http://dx.doi.org/10.1190/geo2016-0202.1.

Full text

Abstract:

The multichannel analysis of surface wave (MASW) method has been effectively and widely used to determine near-surface shear-wave velocity. Horizontal resolution of the MASW method represents the minimum horizontal length of recognizable geologic anomalous bodies on a pseudo-2D S-wave velocity [Formula: see text] section. Accurately assessing the achievable lateral resolution is one of the main issues in lateral variation reconstruction using the MASW method. It is difficult to quantitatively estimate the horizontal resolution of the MASW method because of the many influencing factors, such as

APA, Harvard, Vancouver, ISO, and other styles

2

Le Ngal, Nwai, Subagyo Pramumijoyo, Iman Satyarno, Kirbani Sri Brotopuspito, Junji Kiyono, and Eddy Hartantyo. "Multi-channel analysis of surface wave method for geotechnical site characterization in Yogyakarta, Indonesia." E3S Web of Conferences 76 (2019): 03006. http://dx.doi.org/10.1051/e3sconf/20197603006.

Full text

Abstract:

On May 27th 2006, Yogyakarta earthquake happened with 6.3 Mw. It was causing widespread destruction and loss of life and property. The average shear wave velocity to 30 m (Vs30) is useful parameter for classifying sites to predict their potential to amplify seismic shaking (Boore, 2004) [1]. Shear wave velocity is one of the most influential factors of the ground motion. The average shear wave velocity for the top 30 m of soil is referred to as Vs30. In this study, the Vs30 values were calculated by using multichannel analysis of surface waves (MASW) method. The Multichannel Analysis of Surfac

APA, Harvard, Vancouver, ISO, and other styles

3

Nguyen, Ngan Nhat Kim, Luu Van Do, Van Thanh Nguyen, Trinh Phuc Tran, and Khuong Manh Vo. "Maximizing the energy of surface wave and diminishing the effect of lateral inhomogenousness in the multichannel analysis of the surface wave (MASW)." Science and Technology Development Journal - Natural Sciences 2, no. 5 (2019): 105–12. http://dx.doi.org/10.32508/stdjns.v2i5.785.

Full text

Abstract:

Multichannel analysis of surface wave (MASW) is one of the novel seismic methods in geophysic field in Vietnam. MASW is able to survey the stiffness of the soil environment under the ground via the shear-wave velocity VS by analyzing the spectral image of surface wave. We did the 1D MASW survey upon the borehole belonged to the residential development project at district 2, Ho Chi Minh city with fixed receiver system, different source orientations and different source offsets. The spectral images of surface wave were combined to maximize the surface wave’s energy on the spectral image of surfa

APA, Harvard, Vancouver, ISO, and other styles

4

Ivanov, Julian, Richard D. Miller, Daniel Feigenbaum, Sarah L. C. Morton, Shelby L. Peterie, and Joseph B. Dunbar. "Revisiting levees in southern Texas using Love-wave multichannel analysis of surface waves with the high-resolution linear Radon transform." Interpretation 5, no. 3 (2017): T287—T298. http://dx.doi.org/10.1190/int-2016-0044.1.

Full text

Abstract:

Shear-wave velocities were estimated at a levee site by inverting Love waves using the multichannel analysis of surface waves (MASW) method augmented with the high-resolution linear Radon transform (HRLRT). The selected site was one of five levee sites in southern Texas chosen for the evaluation of several seismic data-analysis techniques readily available in 2004. The methods included P- and S-wave refraction tomography, Rayleigh- and Love-wave surface-wave analysis using MASW, and P- and S-wave cross-levee tomography. The results from the 2004 analysis revealed that although the P-wave metho

APA, Harvard, Vancouver, ISO, and other styles

5

Syamsuddin, Erfan, Sabrianto Aswad, Muhammad Alimuddin Hamzah Assegaf, et al. "Seismic Site Classification Using the Multichannel Analysis of Surface Waves Method." POSITRON 12, no. 2 (2022): 149. http://dx.doi.org/10.26418/positron.v12i2.53869.

Full text

Abstract:

The soil has a variety of qualities that affect its ability to support the weight of a structure. One of these features is soil stiffness, which can be determined using the surface wave method to prevent soil collapse. Multichannel Analysis of Surface Waves (MASW) is one of the non-invasive methodologies used in this study to investigate subsurface structures in North Sumatra, Indonesia. This method utilizes the dispersion properties of Rayleigh waves, producing a dispersion curve to get the shear wave velocity (Vs) through inversion. The shear wave velocity can be used to examine the soil sti

APA, Harvard, Vancouver, ISO, and other styles

6

Kurtuluş, Cengiz, Ibrahim Sertcelik, Fadime Sertçelik, Hamdullah Livaoğlu, and Cüneyt Şaş. "Investigation of Soil Characterization in Hatay Province in Turkey by Using Seismic Refraction, Multichannel Analysis of Surface Waves and Microtremor." Earth Sciences Research Journal 24, no. 4 (2021): 473–84. http://dx.doi.org/10.15446/esrj.v24n4.79123.

Full text

Abstract:

In this study, shallow seismic surveys, including seismic refraction, Multichannel Analysis of Surface Waves (MASW), Refraction Microtremor (ReMi), and Microtremor measurements were conducted to estimate site characterization at 26 strong-motion stations of AFAD (Disaster and Emergency Management Presidency) in the province of Hatay, situated in one of the most seismically active regions in southern Turkey. The Horizontal to vertical spectral ratio (HVSR) technique was applied, using smoothed Fourier spectra derived from a long duration series to determine dominant frequency values at differen

APA, Harvard, Vancouver, ISO, and other styles

7

Craig, Mitchell, and Koichi Hayashi. "Surface wave surveying for near-surface site characterization in the East San Francisco Bay Area, California." Interpretation 4, no. 4 (2016): SQ59—SQ69. http://dx.doi.org/10.1190/int-2015-0227.1.

Full text

Abstract:

Seismic surface wave methods are effective tools for estimating S-wave velocity in urban areas for near-surface site characterization and geologic hazard assessment. A surface wave survey can provide quantitative site-specific measurement of physical properties needed for the design of earthquake-resistant structures. We successfully used a combined active and passive seismic surface wave method to estimate the S-wave velocity in the upper 30 m at sites with a range of geologic conditions. At five of the six sites, multichannel analysis of surface waves (MASW) and microtremor array method (MAM

APA, Harvard, Vancouver, ISO, and other styles

8

Konstantaki, Laura Amalia, Ranajit Ghose, Deyan Draganov, Giovanni Diaferia, and Timo Heimovaara. "Characterization of a heterogeneous landfill using seismic and electrical resistivity data." GEOPHYSICS 80, no. 1 (2015): EN13—EN25. http://dx.doi.org/10.1190/geo2014-0263.1.

Full text

Abstract:

Understanding the processes occurring inside a landfill is important for improving the treatment of landfills. Irrigation and recirculation of leachate are widely used in landfill treatments. Increasing the efficiency of such treatments requires a detailed understanding of the flow inside the landfill. The flow depends largely on the heterogeneous distribution of density. It is, therefore, of great practical interest to determine the density distribution affecting the flow paths inside a landfill. Studies in the past have characterized landfill sites but have not led to high-resolution, detail

APA, Harvard, Vancouver, ISO, and other styles

9

Oloye, Oluwatobi, and Adekunle Adepelumi. "Characterization of the geological and geotechnical properties of soil using the surface wave approach." International Journal of Advanced Geosciences 3, no. 2 (2015): 8. http://dx.doi.org/10.14419/ijag.v3i2.3963.

Full text

Abstract:

<p>As part of the efforts to examine the elastic and engineering properties of the subsurface sequence at a proposed new power plant site in Edo State, a geophysical survey involving Multichannel Analysis of Surface Waves (MASW) was carried out. The MASW was adopted to determine the vertical and lateral variations in velocity beneath each seismic line. The MASW was carried out on two seismic lines each trending NE-SW. A geophone interval of 3 m was used, and the length of the seismic lines ranged from 60 – 90 m. The ES-3000 seismograph was used for the surface wave data acquisition and t

APA, Harvard, Vancouver, ISO, and other styles

10

Lewińska, Paulina, Rafał Matuła, and Artur Dyczko. "Integration of thermal digital 3D model and a MASW (Multichannel Analysis of Surface Wave) as a means of improving monitoring of spoil tip stability." E3S Web of Conferences 26 (2018): 00008. http://dx.doi.org/10.1051/e3sconf/20182600008.

Full text

Abstract:

Spoil tips are anthropogenic terrain structures built of leftover (coal) mining materials. They consist mostly of slate and sandstone or mudstone but also include coal and highly explosive coal dust. Coal soil tip fires cause an irreversible degradation to the environment. Government organizations notice the potential problem of spoil tip hazard and are looking for ways of fast monitoring of their temperature and inside structure. In order to test new monitoring methods an experimental was performed in the area of spoil tip of Lubelski Węgiel „Bogdanka” S.A. A survey consisted of creating a 3D

APA, Harvard, Vancouver, ISO, and other styles

11

Rahimi, Salman, Timothy Moody, Clinton Wood, et al. "Mapping Subsurface Conditions and Detecting Seepage Channels for an Embankment Dam Using Geophysical Methods: A Case Study of the Kinion Lake Dam." Journal of Environmental and Engineering Geophysics 24, no. 3 (2019): 373–86. http://dx.doi.org/10.2113/jeeg24.3.373.

Full text

Abstract:

Capacitively-Coupled Resistivity (CCR), Electrical Resistivity Tomography (ERT), and seismic surface wave testing using Love and Rayleigh waves were performed on Kinion Lake Dam, an embankment dam that has historically experienced significant seepage and internal erosion issues. The goal of this study is to detect seepage locations in the embankment dam for remediation purposes and map bedrock location across the area using nondestructive geophysical measurements. Surveys were completed along the crest and downstream toe of the dam to map subsurface conditions with a focus on seepage detection

APA, Harvard, Vancouver, ISO, and other styles

12

Mollehuara-Canales, Raul, Nikita Afonin, Elena Kozlovskaya, Juha Lunkka, and Daniele Pedretti. "Leveraging active-source seismic data in mining tailings: Refraction and MASW analysis, elastic parameters, and hydrogeological conditions." Bulletin of the Geological Society of Finland 93, no. 2 (2021): 104–27. http://dx.doi.org/10.17741/bgsf/93.2.002.

Full text

Abstract:

We applied active-source seismic method for the interpretation of elastic parameters in tailings facilities which is essential for evaluating stability and seismic response. The methodology uses different analysis methods on the same dataset, i.e., conventional seismic refraction (SR) to determine compressional-wave velocity (Vp) and multichannel analysis of surface wave (MASW) to estimate shear-wave velocity (Vs). Seismic velocities in conjunction with tailings physics approach revealed interpretable data in terms of elastic parameters and hydrogeological conditions. The results determined th

APA, Harvard, Vancouver, ISO, and other styles

13

Alonso-Pandavenes, Olegario, Daniela Bernal, Francisco Javier Torrijo, and Julio Garzón-Roca. "A Comparative Analysis for Defining the Sliding Surface and Internal Structure in an Active Landslide Using the HVSR Passive Geophysical Technique in Pujilí (Cotopaxi), Ecuador." Land 12, no. 5 (2023): 961. http://dx.doi.org/10.3390/land12050961.

Full text

Abstract:

Geophysical techniques were employed to analyze one of the landslides that affected the main access road to Pujilí (Ecuador). A passive seismic technique was utilized to test a total of 70 horizontal to vertical spectral ratio (HVSR) points, complemented by an active seismic-refraction profile and a multichannel analysis of surface waves (MASW) survey. The results from the active geophysical surveys facilitated the determination of the shear-wave-velocity value for the surface materials that were in motion. However, the HVSR provided the fundamental frequency fo and amplification Ao values of

APA, Harvard, Vancouver, ISO, and other styles

14

Daryono, Lutfian R., Kazunori Nakashima, Satoru Kawasaki, Koichi Suzuki, Imam Suyanto, and Arief Rahmadi. "Investigation of Natural Beachrock and Physical–Mechanical Comparison with Artificial Beachrock Induced by MICP as a Protective Measure against Beach Erosion at Yogyakarta, Indonesia." Geosciences 10, no. 4 (2020): 143. http://dx.doi.org/10.3390/geosciences10040143.

Full text

Abstract:

Typically, the mitigation of coastal erosion is achieved by amending surface conditions using materials, such as concrete. The objective of this study is to evaluate the feasibility of constructing artificial beachrocks using natural materials (e.g., microbes, sand, shell, pieces of coral, and seaweed, etc.) within a short time, and to propose the method as a novel strategy for coastal protection. Initially, a survey on resistivity and a multichannel analysis of seismic waves (MASW) were conducted along the coastal lines to characterize and elucidate the subsurface structure of existing beachr

APA, Harvard, Vancouver, ISO, and other styles

15

Alexopoulos, John D., Spyridon Dilalos, Nicholas Voulgaris, et al. "The Contribution of Near-Surface Geophysics for the Site Characterization of Seismological Stations." Applied Sciences 13, no. 8 (2023): 4932. http://dx.doi.org/10.3390/app13084932.

Full text

Abstract:

The Athenet network is the network of the Seismological Laboratory of the National and Kapodistrian University of Athens. We present the geophysical investigation that has been carried out at six seismological stations of the Athenet network for their site characterization. More specifically, at the location of each seismological station, four geophysical methods have been carried out: Seismic Refraction Tomography (SRT), Multichannel Analysis of Surface Waves (MASW), the Horizontal to Vertical Spectral Ratio (HVSR) technique, and Electrical Resistivity Tomography (ERT). The applied geophysica

APA, Harvard, Vancouver, ISO, and other styles

16

Matuła, Rafał, and Paulina Lewińska. "Geodetic survey as a means of improving fast MASW (Multichannel Analysis Of Surface Waves) profiling in difficult terrain/land conditions." E3S Web of Conferences 26 (2018): 00007. http://dx.doi.org/10.1051/e3sconf/20182600007.

Full text

Abstract:

This paper revolves around newly designed and constructed system that can make 2D seismic measurement in natural, subsoil conditions and role of land survey in obtaining accurate results and linking them to 3D surface maps. A new type of land streamer, designed for shallow subsurface exploration is described in this paper. In land seismic data acquisition methods a vehicle tows a line of seismic cable, lying on construction called streamer. The measurements of points and shots are taken while the line is stationary, arbitrary placed on seismic profile. Exposed land streamer consists of 24 inno

APA, Harvard, Vancouver, ISO, and other styles

17

Paz, Maria, Francisco Alcalá, Ana Medeiros, Pedro Martínez-Pagán, Jaruselsky Pérez-Cuevas, and Luís Ribeiro. "Integrated MASW and ERT Imaging for Geological Definition of an Unconfined Alluvial Aquifer Sustaining a Coastal Groundwater-Dependent Ecosystem in Southwest Portugal." Applied Sciences 10, no. 17 (2020): 5905. http://dx.doi.org/10.3390/app10175905.

Full text

Abstract:

This paper integrates multichannel analysis of surface waves (MASW) and time-lapse electrical resistivity tomography (ERT) to define aquifer geometry and identify transient groundwater features of the Cascalheira Stream Basin Holocene alluvial aquifer (aquifer H), which contributes to the Santo André Lagoon, part of a coastal groundwater-dependent ecosystem (GDE), located in southwest Portugal. MASW measures shear-wave velocity (VS), allowing one to obtain steady geological models of the subsurface, and ERT measures subsurface electrical resistivity (ER), being subjected to ambient changes. MA

APA, Harvard, Vancouver, ISO, and other styles

18

López, Fernando, Manuel Navarro, Pedro Martínez-Pagán, Antonio García-Jerez, Jaruselsky Pérez-Cuevas, and Takahisa Enomoto. "Vs30 Structure of Almeria City (SE Spain) Using SPAC and MASW Methods and Proxy Correlations." Geosciences 12, no. 11 (2022): 403. http://dx.doi.org/10.3390/geosciences12110403.

Full text

Abstract:

The topographic slope method is an innovative, fast and very low-cost technique for estimating the average S-wave velocity in the upper 30 m (Vs30) based on the relationship between this quantity and the slope of the ground, obtained using a Digital Elevation Model (DEM). The method is based on the good linear correlations log(Vs30)–log(slope) found experimentally, which, ideally, should be determined for each region. If measured Vs30 data are not available to carry out this fitting for the study area, correlations from other areas could be used, although the reliability of the estimated Vs30

APA, Harvard, Vancouver, ISO, and other styles

19

Guedes, Victor José Cavalcanti Bezerra, Welitom Rodrigues Borges, Luciano Soares da Cunha, and Susanne Taina Ramalho Maciel. "Spatial Autocorrelation of Passive Surface Wave Data for Assessment of an Earth Dam in Brasília, Brazil." Brazilian Journal of Geophysics 39, no. 4 (2021): 551. http://dx.doi.org/10.22564/rbgf.v39i4.2115.

Full text

Abstract:

ABSTRACT. Surface wave methods are commonly applied to engineering problems for S-wave velocity estimations. Conventional active Multichannel Analysis of Surface Waves (MASW) surveys for earth dam assessment suffer from limitations mainly associated to restrict depth of investigation and negative influences of near noise sources. In Brazil, the need to image around noisy sites over 30 m deep, which are non-ideal contexts for traditional active seismic data campaigns, is commonly in demand. We acquired ten minutes of ambient vibration data at the crest of a large earth dam in Brasília, Federal

APA, Harvard, Vancouver, ISO, and other styles

20

Dismuke, James N. "Nonlinear shear stress reduction factor (rd) for assessment of liquefaction potential in Christchurch Central Business District." Bulletin of the New Zealand Society for Earthquake Engineering 47, no. 1 (2014): 1–14. http://dx.doi.org/10.5459/bnzsee.47.1.1-14.

Full text

Abstract:

Simplified procedures for evaluating liquefaction triggering potential use the nonlinear shear stress reduction factor, rd, to estimate the peak earthquake-induced cyclic shear stress within the soil strata. Previous studies have derived rd by considering the response of representative ground profiles subjected to input ground motions with a range of ground motion characteristics. In this study, site–specific rd for serviceability limit state (SLS) and ultimate limit state (ULS) design ground motions are developed using site response models of the Christchurch Central Business District (CBD).

APA, Harvard, Vancouver, ISO, and other styles

21

Morgan, David, David Gunn, Andres Payo, and Michael Raines. "Passive Seismic Surveys for Beach Thickness Evaluation at Different England (UK) Sites." Journal of Marine Science and Engineering 10, no. 5 (2022): 667. http://dx.doi.org/10.3390/jmse10050667.

Full text

Abstract:

In an era of environmental change leading to rising sea levels and increased storminess, there is a need to quantify the volume of beach sediment on the coast of Britain in order to assess the vulnerability to erosion using cheap, easy-to-deploy and non-invasive methods. Horizontal-to-vertical spectral ratio (HVSR) is a technique that uses the natural background seismic ‘noise’ in order to determine the depth of underlying geological interfaces that have contrasting physical properties. In this study, the HVSR technique was deployed at a number of settings on the coast of England that represen

APA, Harvard, Vancouver, ISO, and other styles

22

Darvasi, Yaniv, and Amotz Agnon. "Calibrating a new attenuation curve for the Dead Sea region using surface wave dispersion surveys in sites damaged by the 1927 Jericho earthquake." Solid Earth 10, no. 2 (2019): 379–90. http://dx.doi.org/10.5194/se-10-379-2019.

Full text

Abstract:

Abstract. Instrumental strong motion data are not common around the Dead Sea region. Therefore, calibrating a new attenuation equation is a considerable challenge. However, the Holy Land has a remarkable historical archive, attesting to numerous regional and local earthquakes. Combining the historical record with new seismic measurements will improve the regional equation. On 11 July 1927, a rupture, in the crust in proximity to the northern Dead Sea, generated a moderate 6.2 ML earthquake. Up to 500 people were killed, and extensive destruction was recorded, even as far as 150 km from the foc

APA, Harvard, Vancouver, ISO, and other styles

23

Olafsdottir, Elin Asta, Sigurdur Erlingsson, and Bjarni Bessason. "Tool for analysis of multichannel analysis of surface waves (MASW) field data and evaluation of shear wave velocity profiles of soils." Canadian Geotechnical Journal 55, no. 2 (2018): 217–33. http://dx.doi.org/10.1139/cgj-2016-0302.

Full text

Abstract:

Multichannel analysis of surface waves (MASW) is a fast, low-cost, and environmentally friendly technique to estimate shear wave velocity profiles of soil sites. This paper introduces a new open-source software, MASWaves, for processing and analysing multichannel surface wave records using the MASW method. The software consists of two main parts: a dispersion analysis tool (MASWaves Dispersion) and an inversion analysis tool (MASWaves Inversion). The performance of the dispersion analysis tool is validated by comparison with results obtained by the Geopsy software package. Verification of the

APA, Harvard, Vancouver, ISO, and other styles

24

Adegbola, R. B., K. F. Oyedele, L. Adeoti, and A. B. Adeloye. "Multichannel analysis of the surface waves of earth materials in some parts of Lagos State, Nigeria." Materials and Geoenvironment 63, no. 2 (2016): 81–90. http://dx.doi.org/10.1515/rmzmag-2016-0007.

Full text

Abstract:

Abstract We present a method that utilizes multichannel analysis of surface waves (MASW), which was used to measure shear wave velocities, with a view to establishing the probable causes of road failure, subsidence and weakening of structures in some local government areas in Lagos, Nigeria. MASW data were acquired using a 24-channel seismograph. The acquired data were processed and transformed into a two-dimensional (2-D) structure reflective of the depth and surface wave velocity distribution within a depth of 0–15 m beneath the surface using SURFSEIS software. The shear wave velocity data w

APA, Harvard, Vancouver, ISO, and other styles

25

Hasya, Cut Atika, Khaizal Khaizal, and Irwandi Irwandi. "Perbandingan Metode Multichannel Analysis of Surface Wave dan Metode Cone Penetration Test Terhadap Analisis Lapisan Tanah." Journal of The Civil Engineering Student 3, no. 1 (2021): 14. http://dx.doi.org/10.24815/journalces.v3i1.12265.

Full text

Abstract:

Analisis lapisan tanah yang dilakukan di lapangan salah satunya, metode Cone Penetration Test (CPT) yang menghasilkan parameter utama nilai tahanan ujung konus (qc). Sedangkan, metode Multichannel Analysis of Surface Wave (MASW) adalah metode dari bidang ilmu geofisika untuk menganalisis lapisan tanah yang dapat menghasilkan parameter kecepatan gelombang geser (Vs). Penelitian ini bertujuan untuk mendapatkan parameter gelombang geser (Vs) MASW dan parameter tahanan ujung CPT untuk menganalisis lapisan tanah serta membandingkan hasil dari kedua metode tersebut terhadap karakteristik lapisan tan

APA, Harvard, Vancouver, ISO, and other styles

26

Long, Michael, and Shane Donohue. "In situ shear wave velocity from multichannel analysis of surface waves (MASW) tests at eight Norwegian research sites." Canadian Geotechnical Journal 44, no. 5 (2007): 533–44. http://dx.doi.org/10.1139/t07-013.

Full text

Abstract:

The multichannel analysis of surface waves (MASW) technique, which is used to determine shear wave velocity (Vs) and hence small strain stiffness (Gmax), has recently generated considerable interest in the geophysics community. This is because of the ease of carrying out the test and analysis of the data. The objective of this work was to assess the repeatability, accuracy, and reliability of MASW surface wave measurements for use in engineering studies. Tests were carried out at eight well-characterized Norwegian clay, silt, and sand research sites where Vs had already been assessed using ind

APA, Harvard, Vancouver, ISO, and other styles

27

Gribler, Gabriel, Lee M. Liberty, and T. Dylan Mikesell. "High-Velocity Surface Layer Effects on Rayleigh Waves: Recommendations for Improved Shear-Wave Velocity Modeling." Bulletin of the Seismological Society of America 110, no. 1 (2020): 279–87. http://dx.doi.org/10.1785/0120190120.

Full text

Abstract:

ABSTRACT Soil stiffness estimates are critical to geologic hazard and risk assessment in urban centers. Multichannel analysis of surface-wave (MASW) data collection along city streets is now a standard, cost-effective, and noninvasive soil stiffness approximation tool. With this approach, shear-wave velocities (VS) are derived from Rayleigh-wave signals. Although the current MASW practice is to neglect the effect of a high-velocity road layer on soil VS estimates, our models show measurable impacts on Rayleigh-wave amplitudes and phase velocities when seismic data are acquired on a road surfac

APA, Harvard, Vancouver, ISO, and other styles

28

Chen, Hongbing, Bin Xu, Jiang Wang, et al. "Interfacial Debonding Detection for Rectangular CFST Using the MASW Method and Its Physical Mechanism Analysis at the Meso-Level." Sensors 19, no. 12 (2019): 2778. http://dx.doi.org/10.3390/s19122778.

Full text

Abstract:

In this study, the transient multichannel analysis of surface waves (MASW) is proposed to detect the existence, the location and the length of interface debonding defects in rectangular concrete-filled steel tubes (CFST). Mesoscale numerical analysis is performed to validate the feasibility of MASW-based interfacial debonding detection. Research findings indicate that the coaxial characteristics in the Rayleigh wave disperse at the starting point of the debonding area and gradually restores at the end of the defect. For healthy specimens, the surface wave mode in CFST is closer to the Rayleigh

APA, Harvard, Vancouver, ISO, and other styles

29

Olafsdottir, Elin Asta, Sigurdur Erlingsson, and Bjarni Bessason. "Open-Source MASW Inversion Tool Aimed at Shear Wave Velocity Profiling for Soil Site Explorations." Geosciences 10, no. 8 (2020): 322. http://dx.doi.org/10.3390/geosciences10080322.

Full text

Abstract:

The shear wave velocity profile is of primary interest for geological characterization of soil sites and elucidation of near-surface structures. Multichannel Analysis of Surface Waves (MASW) is a seismic exploration method for determination of near-surface shear wave velocity profiles by analyzing Rayleigh wave propagation over a wide range of wavelengths. The inverse problem faced during the application of MASW involves finding one or more layered soil models whose theoretical dispersion curves match the observed dispersion characteristics. A set of open-source MATLAB-based tools for acquirin

APA, Harvard, Vancouver, ISO, and other styles

30

Neducza, Boriszláv. "Stacking of surface waves." GEOPHYSICS 72, no. 2 (2007): V51—V58. http://dx.doi.org/10.1190/1.2431635.

Full text

Abstract:

The seismic surface wave method (SWM) is a powerful means of characterizing near-surface structures. Although the SWM consists of only three steps (data acquisition, determination of dispersion curves, and inversion), it is important to take considerable care with the second step, determination of the dispersion curves. This step is usually completed by spectral analysis of surface waves (SASW) or multichannel analysis of surface waves (MASW). However, neither method is ideal, as each has its advantages and disadvantages. SASW provides higher horizontal resolution, but it is very sensitive to

APA, Harvard, Vancouver, ISO, and other styles

31

Farhan, Muhammad, and Gunawan Handayani. "Shear Wave Velocity Analysis of 2-D Multichannel Analysis of Surface Wave (MASW) to investigate subsurface Fault of Alternative Bridge Construction in Kelok Sago Jambi." Jurnal Matematika dan Sains 25, no. 1 (2020): 18–20. http://dx.doi.org/10.5614/jms.2020.25.1.4.

Full text

Abstract:

Every geotechnical measurement requires geophysical methods to classify soil types under the ground. S-wave velocity (Vs), P-wave velocity (Vp), and density (ρ), are the most important parameters in the classification of soils. There are various methods to determine Vs, one of them is P-S logging method. However, this method is less suitable to be applied in urban areas due to the difficulties of data acquisition and high expense in operational costs. In 1999, a seismic method uses surface waves to de-termine Vs profile with a higher signal to noise ratio which was known by the name of Multich

APA, Harvard, Vancouver, ISO, and other styles

32

Ivanov, Julian, Richard D. Miller, Pierre Lacombe, Carole D. Johnson, and John W. Lane. "Delineating a shallow fault zone and dipping bedrock strata using multichannal analysis of surface waves with a land streamer." GEOPHYSICS 71, no. 5 (2006): A39—A42. http://dx.doi.org/10.1190/1.2227521.

Full text

Abstract:

The multichannel analysis of surface waves (MASW) seismic method was used to delineate a fault zone and gently dipping sedimentary bedrock at a site overlain by several meters of regolith. Seismic data were collected rapidly and inexpensively using a towed 30-channel land streamer and a rubberband-accelerated weight-drop seismic source. Data processed using the MASW method imaged the subsurface to a depth of about [Formula: see text] and allowed detection of the overburden, gross bedding features, and fault zone. The fault zone was characterized by a lower shear-wave velocity [Formula: see tex

APA, Harvard, Vancouver, ISO, and other styles

33

Tsuji, Takeshi, Tor Arne Johansen, Bent Ole Ruud, Tatsunori Ikeda, and Toshifumi Matsuoka. "Surface-wave analysis for identifying unfrozen zones in subglacial sediments." GEOPHYSICS 77, no. 3 (2012): EN17—EN27. http://dx.doi.org/10.1190/geo2011-0222.1.

Full text

Abstract:

To reveal the extent of freezing in subglacial sediments, we estimated S-wave velocity along a glacier using surface-wave analysis. Because the S-wave velocity varies significantly with the degree of freezing of the pore fluid in the sediments, this information is useful for identifying unfrozen zones within subglacial sediments, which again is important for glacier dynamics. We used active-source multichannel seismic data originally acquired for reflection analysis along a glacier at Spitsbergen in the Norwegian Arctic and proposed an effective approach of multichannel analysis of surface wav

APA, Harvard, Vancouver, ISO, and other styles

34

Coe, Joseph T., and Siavash Mahvelati. "Full Waveform Tomography to Address Challenges with Surface Wave Dispersion Information Caused by Significant Stochastic Variability of Subsurface Stiffness." Journal of Environmental and Engineering Geophysics 26, no. 4 (2021): 267–78. http://dx.doi.org/10.32389/jeeg21-013.

Full text

Abstract:

Surface wave methods have increased in popularity as a means to acquire rapid and accurate shear wave velocity ( VS) profiles for engineering applications. Use of the multichannel analysis of surface waves (MASW) method, in particular, has proliferated due to multiple factors, including the ease with which strong signal-to-noise ratio can be achieved and the increased dispersion resolution offered by multichannel acquisitions. However, typical MASW processing to extract dispersion information assumes the surface waves propagate through a layered model. Errors can arise when significant lateral

APA, Harvard, Vancouver, ISO, and other styles

35

Guireli Netto, Leonides, Otavio Coaracy Brasil Gandolfo, Walter Malagutti Filho, and João Carlos Dourado. "NON-DESTRUCTIVE INVESTIGATION ON SMALL EARTH DAMS USING GEOPHYSICAL METHODS: SEISMIC SURFACE WAVE MULTICHANNEL ANALYSIS (MASW) AND S-WAVE REFRACTION SEISMIC METHODS." Brazilian Journal of Geophysics 38, no. 1 (2020): 5. http://dx.doi.org/10.22564/rbgf.v38i1.2031.

Full text

Abstract:

ABSTRACT. The application of non-destructive methods of investigation in dams, such as refractive seismic method and Multichannel Analysis of Surface Waves (MASW) are increasingly effective from the point of choosing the best dam site, as well as in the phases of construction and maintenance of the structure. The objective of the research was to apply geophysical methods in the structure of the dam to detect the internal flow of fluids, the presence of voids, find possible fracture zones and variations in the level of saturation of the massif, characteristics related to permeability and direct

APA, Harvard, Vancouver, ISO, and other styles

36

Indanartha, Novien Ghoziana, Dwa Desa Warnana, and Amien Widodo. "Aplikasi Metode Multichannel Analysis Of Surface Wave (MASW) Sebagai Evaluasi Tapak Lokal Surabaya." Jurnal Geosaintek 4, no. 2 (2018): 63. http://dx.doi.org/10.12962/j25023659.v4i2.4296.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Tran, Khiem T., Justin Sperry, Michael McVay, Scott J. Wasman, and David Horhota. "Shear Wave Velocity Profiles of Roadway Substructures from Multichannel Analysis of Surface Waves and Waveform Tomography." Transportation Research Record: Journal of the Transportation Research Board 2655, no. 1 (2017): 36–44. http://dx.doi.org/10.3141/2655-06.

Full text

Abstract:

Assessment of roadway subsidence caused by embedded low-velocity anomalies is critical to the health and safety of the traveling public. Surface-based seismic techniques are often used to assess roadways because of data acquisition convenience and large depths of characterization. To mitigate the negative impact of closing a traffic lane under traditional seismic testing, a new test system that uses a land streamer is presented. The main advantages of the system are the elimination of the need to couple the geophones to the roadway, the use of only one source at the end of the geophone array,

APA, Harvard, Vancouver, ISO, and other styles

38

Atan Obeten Egor. "Characterization of sub-surface structure, using seismic refraction and multi-channel analysis of surface waves methods in Ajere Ekori Yakurr LGA of cross river state." GSC Advanced Research and Reviews 16, no. 1 (2023): 188–200. http://dx.doi.org/10.30574/gscarr.2023.16.1.0311.

Full text

Abstract:

The study was to characterize the sub surface at Agere in Ekori, using seismic refraction method, multichannel analysis of surface waves technique and borehole intrusive technique. Data were collected using a 12channel seismograph and other accessories required for seismic refraction data collection. Software called seismicimager was used to examine the data. The primary wave velocity in the first layer varied from 690 m/s at 4.2 m to 96 m/s at 7.3 m. A Vp range of 315 m/s to 484 m/s at a depth of 2 m is present inside the layer and represents the organic soil constituents. A Vp range of 669 m

APA, Harvard, Vancouver, ISO, and other styles

39

Lu, Zhiqu. "An acoustic near surface soil profiler using surface wave method." Journal of the Acoustical Society of America 151, no. 4 (2022): A58. http://dx.doi.org/10.1121/10.0010649.

Full text

Abstract:

An acoustic soil profiler, using a so-called the high-frequency multi-channel analysis of surface waves (HF-MASW) method, has been developed, which uses surface (Rayleigh) waves to measure soil profile in terms of the shear (S) wave velocity as a function of depth, up to a 2.5 m deep below the surface. Several practical techniques have been developed to enhance the HF-MASW method, including (1) a variable sensor spacing configuration, (2) the self-adaptive method, and (3) the phase-only signal processing. Fundamentally, the S-wave velocity is related to soil mechanical and hydrological propert

APA, Harvard, Vancouver, ISO, and other styles

40

Yadav, Shubhamjeet, Madan Chandra Maurya, and Keshav Kumar Sharma. "Seismic Site Response Analysis of MMMUT Gorakhpur of Uttar Pradesh, India." IOP Conference Series: Materials Science and Engineering 1273, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1757-899x/1273/1/012005.

Full text

Abstract:

Abstract An endeavour has been made to assess the spatial fluctuation of the profundity of endured and designing bedrock in Gorakhpur Uttar Pradesh, North India utilizing Multichannel Analysis of Surface Wave (MASW) study. One-layered MASW study has been done at Madan Mohan Malaviya University of Technology, Gorakhpur campus and Shear-wave Velocity V S 30 are estimated. MASW overview at 3 location and a Standard Penetration Test SPT-N from the profound geotechnical boreholes data used for comparison of site classification. The deduction of this work might be utilized as contributions for seism

APA, Harvard, Vancouver, ISO, and other styles

41

Tokeshi, K., P. Harutoonian, C. J. Leo, and S. Liyanapathirana. "Use of surface waves for geotechnical engineering applications in Western Sydney." Advances in Geosciences 35 (June 27, 2013): 37–44. http://dx.doi.org/10.5194/adgeo-35-37-2013.

Full text

Abstract:

Abstract. Current in situ methods used to geotechnically characterize the ground are predominantly based on invasive mechanical techniques (e.g. CPT, SPT, DMT). These techniques are localized to the tested area thus making it quite time consuming and costly to extensively cover large areas. Hence, a study has been initiated to investigate the use of the non-invasive Multichannel Analysis of Surface Waves (MASW) and Multichannel Simulation with One Receiver (MSOR) techniques to provide both an evaluation of compacted ground and a general geotechnical site characterization. The MASW technique re

APA, Harvard, Vancouver, ISO, and other styles

42

El-Raouf, Amr Abd, Ibrar Iqbal, Julia Meister, Kamal Abdelrahman, Hassan Alzahrani, and Osman M. Badran. "Earthflow reactivation assessment by multichannel analysis of surface waves and electrical resistivity tomography: A case study." Open Geosciences 13, no. 1 (2021): 1328–44. http://dx.doi.org/10.1515/geo-2020-0310.

Full text

Abstract:

Abstract In this study, we investigated the stability and reactivation of preexisting Tonghua landslide deposits in China, including the adjacent stable slope. We used an integrated approach, combining a multichannel analysis of surface waves (MASW) and electrical resistivity tomography (ERT). We used ERT to determine groundwater seepage paths, weathering conditions, water content, and the depth to bedrock. High-resolution two-dimensional (2D) shear-wave velocity MASW images, on the other hand, played an essential role in detecting both horizontal and vertical compositions, disjointedness, and

APA, Harvard, Vancouver, ISO, and other styles

43

Kumar, Jyant, and Tarun Naskar. "Resolving phase wrapping by using sliding transform for generation of dispersion curves." GEOPHYSICS 82, no. 3 (2017): V127—V136. http://dx.doi.org/10.1190/geo2016-0207.1.

Full text

Abstract:

The complexity involved with the phase unwrapping procedure, while performing the existing spectral analysis of surface waves (SASW) on the basis of two sensors, makes it difficult to automate and requires frequent manual judgment. As a result, this approach generally becomes tedious and may yield erroneous results. The multichannel analysis of surface waves (MASW) technique can resolve the problem of phase wrapping. However, the MASW technique normally requires a large number of closely spaced sensors, typically 24–48 or even more. We have developed a new method that is fast, accurate, and ge

APA, Harvard, Vancouver, ISO, and other styles

44

Cheng, Feng, Jianghai Xia, Yinhe Luo, et al. "Multichannel analysis of passive surface waves based on crosscorrelations." GEOPHYSICS 81, no. 5 (2016): EN57—EN66. http://dx.doi.org/10.1190/geo2015-0505.1.

Full text

Abstract:

Passive seismic methods in highly populated urban areas have gained much attention from geophysics and civil engineering communities because traditional seismic surveys, especially in complex urbanized environments, might be improperly applied. In passive seismic methods, directional noise sources will inevitably bring azimuthal effects and spatial aliasing to dispersion measurements due to the fact that true randomness of ambient noise cannot be achieved in reality. To solve these problems, multichannel analysis of passive surface (MAPS) waves based on long noise sequence crosscorrelations is

APA, Harvard, Vancouver, ISO, and other styles

45

Jafri, Nur Jihan Syamimi, Mohd Asri Ab Rahim, Mohd Zulham Affandi Mohd Zahid, et al. "Assessment of soil compaction properties based on surface wave techniques." E3S Web of Conferences 34 (2018): 01002. http://dx.doi.org/10.1051/e3sconf/20183401002.

Full text

Abstract:

Soil compaction plays an important role in every construction activities to reduce risks of any damage. Traditionally, methods of assessing compaction include field tests and invasive penetration tests for compacted areas have great limitations, which caused time-consuming in evaluating large areas. Thus, this study proposed the possibility of using non-invasive surface wave method like Multi-channel Analysis of Surface Wave (MASW) as a useful tool for assessing soil compaction. The aim of this study was to determine the shear wave velocity profiles and field density of compacted soils under v

APA, Harvard, Vancouver, ISO, and other styles

46

Jusoh, Hisyam, Syed Baharom Syed Osman, and Khairul Arifin Mohd Noh. "Usability of the surface wave method in assessment for subsurface investigation." IOP Conference Series: Earth and Environmental Science 1003, no. 1 (2022): 012039. http://dx.doi.org/10.1088/1755-1315/1003/1/012039.

Full text

Abstract:

Abstract Soil borehole drilling incorporating Standard Penetration Test (SPT) is frequently used for subsurface profiling and geotechnical calculations such as soil bearing capacity. Despite this conventional application, there are several limitations of soil boring and SPT involves. The primary objective is to propose an alternative method for geotechnical engineering application of soil profiling as supporting data by conducting Multichannel Analysis Surface Wave (MASW) for site investigation. In this study, the MASW was utilized to verify the reliability and capability of this method on con

APA, Harvard, Vancouver, ISO, and other styles

47

Dong, Yang, Shengchun Piao, Lijia Gong, et al. "Scholte Wave Dispersion Modeling and Subsequent Application in Seabed Shear-Wave Velocity Profile Inversion." Journal of Marine Science and Engineering 9, no. 8 (2021): 840. http://dx.doi.org/10.3390/jmse9080840.

Full text

Abstract:

Recent studies have illustrated that the Multichannel Analysis of Surface Waves (MASW) method is an effective geoacoustic parameter inversion tool. This particular tool employs the dispersion property of broadband Scholte-type surface wave signals, which propagate along the interface between the sea water and seafloor. It is of critical importance to establish the theoretical Scholte wave dispersion curve computation model. In this typical study, the stiffness matrix method is introduced to compute the phase speed of the Scholte wave in a layered ocean environment with an elastic bottom. By co

APA, Harvard, Vancouver, ISO, and other styles

48

Ashraf, M. A. M., N. S. Kumar, R. Yusoh, Z. A. M. Hazreek, and M. Aziman. "Site Classification using Multichannel Channel Analysis of Surface Wave (MASW) method on Soft and Hard Ground." Journal of Physics: Conference Series 995 (April 2018): 012108. http://dx.doi.org/10.1088/1742-6596/995/1/012108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Ikeda, Tatsunori, and Takeshi Tsuji. "Two-station continuous wavelet transform cross-coherence analysis for surface-wave tomography using active-source seismic data." GEOPHYSICS 85, no. 1 (2020): EN17—EN28. http://dx.doi.org/10.1190/geo2019-0054.1.

Full text

Abstract:

ABSTRACT Surface-wave tomography has great potential to improve the lateral resolution of near-surface characterization compared to 2D surface-wave analysis with multichannel analysis of surface waves (MASW). Surface-wave tomography has been widely applied to obtain high-resolution maps of phase or group velocity from dispersion curves between pairs of stations in seismological studies. However, very few studies have done surface-wave tomography with active-source (exploration) seismic data, probably because extracting surface-wave dispersion curves between two stations is difficult due to the

APA, Harvard, Vancouver, ISO, and other styles

50

Gribler, Gabriel, Lee M. Liberty, T. Dylan Mikesell, and Paul Michaels. "Isolating retrograde and prograde Rayleigh-wave modes using a polarity mute." GEOPHYSICS 81, no. 5 (2016): V379—V385. http://dx.doi.org/10.1190/geo2015-0683.1.

Full text

Abstract:

Estimates of S-wave velocity with depth from Rayleigh-wave dispersion data are limited by the accuracy of fundamental and/or higher mode signal identification. In many scenarios, the fundamental mode propagates in retrograde motion, whereas higher modes propagate in prograde motion. This difference in particle motion (or polarity) can be used by joint analysis of vertical and horizontal inline recordings. We have developed a novel method that isolates modes by separating prograde and retrograde motions; we call this a polarity mute. Applying this polarity mute prior to traditional multichannel

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!