Log in

Relevant bibliographies by topics / Mechanical dredger / Journal articles

To see the other types of publications on this topic, follow the link: Mechanical dredger.

Journal articles on the topic 'Mechanical dredger'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

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 'Mechanical dredger.'

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

Lyubimov, Victor Ivanovich, Nikolay Frolovich Popov, and Grigory Ivanovich Sapunov. "Review and analysis of operation of best domestic and foreign river dredgers." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2020, no. 2 (2020): 39–53. http://dx.doi.org/10.24143/2073-1574-2020-2-39-53.

Full text

Abstract:

The article analyzes the development and modernization of energy and technological equipment, as well as soil productivity of dredging projects of both foreign and domestic manufacturers of dredging equipment. The emphasis has been placed on the installation and use of submersible pumps. The productivity of soil dredges has been found to increase due to changes in the design of soil sampling devices and soil pumps. The main characteristics of the American river dredgers with hydraulic cultivators and domestic river diesel dredgers with hydraulic soil cultivators have been considered and evalua

APA, Harvard, Vancouver, ISO, and other styles

2

Igor, Z. Maslov, I. Chimshir Valentin, M. Piterska Varvara, and I. Haidarzhy Anzhela. "Water Hummer Technology for Soil Destruction on Dredgers." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 3570–76. https://doi.org/10.35940/ijeat.C6368.029320.

Full text

Abstract:

The present investigation aims to propose a solution of the problem which is connected with slurry processing during the dredger’s operation under difficult conditions. On dredgers, depending on the degree of air dryness or low ambient temperatures very often arises technical problem that creates difficulties for the crew. It is connected with the fact that soil surface layer is very dense. It is very difficult to dredge the soil during extraction under water surface or unloading from the hold of a vessel at low ambient temperatures. The top layer of the very soil is characterized by a h

APA, Harvard, Vancouver, ISO, and other styles

3

Yuan, Xiao Qing, Qing Wang, Yu Bin Xia, Jing Song, and Sen Lin. "A Study on Pore Diameter Distribution of Saliniferous Dredger Fill Consolidated by Vacuum Preloading." Advanced Materials Research 301-303 (July 2011): 1511–16. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1511.

Full text

Abstract:

The pore structure of soil plays a decisive role in its engineering properties. In order to investigate the consolidation effect and pore distribution characteristic of saliniferous dredger fill after vacuum preloading, the indoor simulation experiments of vacuum preloading were carried out in two boxes, after vacuum preloading, the dredger fill was tested for its physicochemical and mechanical properties. Simultaneously, the mercury intrusion porosimetry was performed to obtain distribution of pore characteristic parameters, and analyzed its pore diameter distribution of dredger fill after va

APA, Harvard, Vancouver, ISO, and other styles

4

Sala, Antonello, Jure Brčić, Bent Herrmann, Alessandro Lucchetti, and Massimo Virgili. "Assessment of size selectivity in hydraulic clam dredge fisheries." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 3 (2017): 339–48. http://dx.doi.org/10.1139/cjfas-2015-0199.

Full text

Abstract:

In hydraulic dredge clam fisheries, the onboard mechanical sorting can be considered as the main catch selection process. The catch is mechanically sorted by a sieve made up of a series of successive grids with holes of decreasing diameter. The effect of the grid hole diameter and sorting speed of the vibrating sieve of a hydraulic dredger was investigated in a field study to determine its clam selection properties and to formulate proposals aimed at improving fishery management. Data analysis demonstrates that it is technically impossible to achieve a knife-edge selection and that there is sc

APA, Harvard, Vancouver, ISO, and other styles

5

Shuai, Yang, Liu Wenbai, and Liu Hongwei. "Quantitative Analysis of the Relationship Between Shear Strength and Fractal Dimension of Solidified Dredger Fill with Different Fly Ash Content Under Monotonic Shear." Polish Maritime Research 25, s2 (2018): 132–38. http://dx.doi.org/10.2478/pomr-2018-0084.

Full text

Abstract:

Abstract The dredger fill of Shanghai Hengsha Island Dongtan is solidified by curing agents with different fly ash content, and the shear strength index of solidified dredger fill is measured by the direct shear test. The microscopic images of solidified dredger fill are obtained by using SEM. The microscopic images are processed and analyzed by using IPP, and the fractal dimension including particle size fractal dimension Dps, aperture fractal dimension Dbs and particle surface fractal dimension Dpr is calculated by fractal theory. The quantitative analysis of the relationship between shear s

APA, Harvard, Vancouver, ISO, and other styles

6

Li, Wei, Cong Xue та Xinxin Li. "Magneto-Elastic μ-Vibrator for Smashing Thrombus". Micromachines 10, № 1 (2019): 74. http://dx.doi.org/10.3390/mi10010074.

Full text

Abstract:

A miniaturized thrombus dredger is proposed and developed in this study. The flexural resonance of the µ-resonator dredger is driven by a bulk-extensional magneto-elastic vibrator that is externally excited by alternating magnetic-field. With the fabricated prototype of the resonant dredger, a mice thrombus blocked in a simulated vessel is broken into micro-pieces, and the previously blocked vessel can recover to an unobstructed state within 1 h. A flow-rate ratio detection method is used to evaluate the thrombus-cleaning effectiveness. The comparison between the finite-element simulation and

APA, Harvard, Vancouver, ISO, and other styles

7

Liu, Yinying, Honglin Yan, and Xu-an Qi. "Study on the Safety Analysis of Dredger Fill Sea Sand Reused in Embankment Slope near the Yangtze River." Journal of Physics: Conference Series 2424, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2424/1/012011.

Full text

Abstract:

Abstract In view of the shortage of sand and gravel aggregates, the sea sand in coastal areas is used as roadbed filler in road restoration of tunnel project by the Yangtze river. The basic mechanical performance tests were carried out to demonstrate the particle gradation and consistency limit of dredger fill sea sand. Triaxial test and direct shear test were performed to analyze the stress-strain relationship of sea sand shear strength in riverside environment and the law of shear displacement under vertical pressure. The road performance was analyzed by testing the compaction characteristic

APA, Harvard, Vancouver, ISO, and other styles

8

Xu, Guizhong, Ji Chen, Shenjie Shi, Angran Tian, and Qiang Tang. "Shear Behaviors of the Intersurface between Rice Straw Rope and Dredger Fill Silt: Experimental and Mechanism Studies." Advances in Civil Engineering 2020 (February 13, 2020): 1–10. http://dx.doi.org/10.1155/2020/6123218.

Full text

Abstract:

The further development of land reclamation, port waterway, and wharf construction brings about proper treatments of dredger fill silt, while huge amounts of rice straw set aside in China argument rational disposal every year. Therefore, rice straw is bundled up as ropes, which represent as drainage body and reinforcement, to make eco-friendly treatment for dredger fill silt. This paper investigates the mechanical properties and validity of rice straw rope as certain treating material of dredger fill silt through a series of pull-out test, mass loss test, and tension test on specimens with dif

APA, Harvard, Vancouver, ISO, and other styles

9

Wang, Jian Bo, Xun Qian Xu, and Yong Zhu. "Mechanical Characteristic Analysis of Dredger Crane Based on ABAQUS." Advanced Materials Research 821-822 (September 2013): 1406–9. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.1406.

Full text

Abstract:

In order to improve the safety and stability of dredger crane (DC), three dimensional finite element models for the DC were established. By applied loads and boundary conditions, the area of stress concentrations, the axis force of jib cylinder and the reaction force of the king structure was obtained under four typical working conditions. Meanwhile, the related theoretical calculations were accomplished to comparing finite element results and at last some suggestions were given. The conclusions can provide a theoretical reference for the further structure design and optimization of DC.

APA, Harvard, Vancouver, ISO, and other styles

10

Poullet, Muñoz-Perez, Poortvliet, Mera, Contreras, and Lopez. "Influence of Different Sieving Methods on Estimation of Sand Size Parameters." Water 11, no. 5 (2019): 879. http://dx.doi.org/10.3390/w11050879.

Full text

Abstract:

Sieving is one of the most used operational methods to determine sand size parameters which are essential to analyze coastal dynamics. However, the influence of hand versus mechanical shaking methods has not yet been studied. Herein, samples were taken from inside the hopper of a trailing suction dredger and sieved by hand with sieves of 10 and 20 cm diameters on board the dredger. Afterwards, these same samples were sieved with a mechanical shaker in the laboratory on land. The results showed differences for the main size parameters D50, standard deviation, skewness, and kurtosis. Amongst the

APA, Harvard, Vancouver, ISO, and other styles

11

Bai, Ming, Jin Hua Chen, Cheng Ning Xie, and Fang Hui Li. "Design ADRC for Cutter Suction Dredger Cutter Motor Variable Frequency Drive System." Advanced Materials Research 1008-1009 (August 2014): 650–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.650.

Full text

Abstract:

In order to achieve precise speed control for cutter suction dredger cutter motor, the controller should adapt well to uncertainties, such as geological environment, water flow, mechanical disturbance, etc. It makes the design of cutter motor controller always a hard work. This paper proposes an active disturbance rejection controller (ADRC) approach for cutter suction dredger cutter motor variable frequency drive system. Firstly, the LabVIEW platform was established by virtual instrument technology, which collected operating data of cutter motor in fundamental wave and total harmonic distorti

APA, Harvard, Vancouver, ISO, and other styles

12

Zhang, Min, Shidong Fan, Hanhua Zhua, and Sen Han. "Numerical Simulation of Solid-Fluid 2-Phase-Flow of Cutting System for Cutter Suction Dredgers." Polish Maritime Research 25, s2 (2018): 117–24. http://dx.doi.org/10.2478/pomr-2018-0082.

Full text

Abstract:

Abstract The study of the flow characteristics of the solid-fluid two phase flow in the cutter suction dredger is very important for exploring the slurry formation mechanism and optimizing the operational parameters. In this study, standard k-ε model and Multiple Reference Frame are applied to numerically simulate flow field in and around the cutting system, then with the steady convergent result of the simulation as the initial condition, Discrete Phase Mode is used to solve the particle motion equation by fully coupling the continuous phase and the particles. The influence of suction flow ve

APA, Harvard, Vancouver, ISO, and other styles

13

Wang, Ying, Chaojie Wang, Zhenhua Hu, and Rong Sun. "The Influence of Different Curing Environments on the Mechanical Properties and Reinforcement Mechanism of Dredger Fill Stabilized with Cement and Polypropylene Fibers." Materials 16, no. 21 (2023): 6827. http://dx.doi.org/10.3390/ma16216827.

Full text

Abstract:

An effective method widely used in geotechnical engineering to solve the shrinkage and cracking issues in cement-stabilized soil (CS) is evenly mixing randomly distributed fibers into it. Dredger fills stabilized with cement and polypropylene fibers (PFCSs) are exposed to rainwater immersion and seawater erosion in coastal areas, influencing their mechanical performance and durability. In this study, direct shear and consolidation compression tests were conducted to investigate the influence of different curing environments on the mechanical properties and compressive behavior of PFCSs. Domina

APA, Harvard, Vancouver, ISO, and other styles

14

Rojas-Sola, José, and Eduardo De la Morena-De la Fuente. "Agustin de Betancourt’s Mechanical Dredger in the Port of Kronstadt: Analysis through Computer-Aided Engineering." Applied Sciences 8, no. 8 (2018): 1338. http://dx.doi.org/10.3390/app8081338.

Full text

Abstract:

This article analyzes the first self-propelled floating dredging machine designed and executed by Agustín de Betancourt in 1810 to dredge the port of Kronstadt (Russia). With this objective, a study of computer-aided engineering (CAE) has been carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite element method, of the 3D model which is reliable under operating conditions. The results have shown that the system of inertia drums proposed by Betancourt manages to dissipate the tensions between the different elements, locating t

APA, Harvard, Vancouver, ISO, and other styles

15

Rojas-Sola, José Ignacio, and la Morena-De la Fuente Eduardo De. "Agustin de Betancourt's Mechanical Dredger in the Port of Kronstadt: Analysis through Computer-Aided Engineering." Applied Sciences 8, no. 8 (2018): 1338. https://doi.org/10.3390/app8081338.

Full text

Abstract:

This article analyzes the first self-propelled floating dredging machine designed and executed by Agustín de Betancourt in 1810 to dredge the port of Kronstadt (Russia). With this objective, a study of computer-aided engineering (CAE) has been carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite element method, of the 3D model which is reliable under operating conditions. The results have shown that the system of inertia drums proposed by Betancourt manages to dissipate the tensions between the different elements, loc

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Wanying, Qingzi Luo, Bingxiang Yuan, and Xiaoping Chen. "An Investigation of Time-Dependent Deformation Characteristics of Soft Dredger Fill." Advances in Civil Engineering 2020 (July 8, 2020): 1–11. http://dx.doi.org/10.1155/2020/8861260.

Full text

Abstract:

The creep characteristics of soft clays have been studied for decades. However, the lateral deformation of soils is not allowed during the commonly used one-dimensional consolidation tests, which cannot describe the real deformation features of soils in practice. On the other hand, the influence of drainage distance on the mechanical properties of soil is still controversial, classified as hypothesis A and hypothesis B. For a better understanding of deformation characteristics of soft clay, especially which in long-terms, a series of conventional oedometer tests as well as novel geometric conf

APA, Harvard, Vancouver, ISO, and other styles

17

Gaspar, M. B., F. Leitão, M. N. Santos, et al. "A comparison of direct macrofaunal mortality using three types of clam dredges." ICES Journal of Marine Science 60, no. 4 (2003): 733–42. http://dx.doi.org/10.1016/s1054-3139(03)00023-7.

Full text

Abstract:

Abstract The white clam Spisula solida is harvested along the entire coast of Portugal using mechanical dredges. In this study, the total direct mortality of the macrobenthic community caused by three types of clam dredges (north dredge—ND, traditional dredge—TD, and the metallic grid dredge—GD) used in the S. solida fishery was determined and compared. The relationship between mortality and catching efficiency for each type of dredge was also assessed. Our results showed significant differences for total direct mortality between the ND and both the GD and TD dredges. This difference was large

APA, Harvard, Vancouver, ISO, and other styles

18

Bilen, Branislav, Branka Bilen-Katic, and Marko Zerjal. "Some Naval Architectural Problems in Underwater Coal Mining." Marine Technology and SNAME News 31, no. 02 (1994): 116–22. http://dx.doi.org/10.5957/mt1.1994.31.2.116.

Full text

Abstract:

This paper presents a solution for a propulsion system that provides perfect speed control and maneuverability for a survey launch used in the process of underwater coal mining. First, mining aspects of coal exploitation are explained. There is also a brief technical description of a cutting wheel suction dredger, including specifications for dredging equipment. The important role of the survey launch in underwater mining procedures is outlined and technical specifications of an installed indirect diesel-hydraulic drive are given. A qualitative comparison between the diesel-hydraulic and the o

APA, Harvard, Vancouver, ISO, and other styles

19

Xu, Chang, Hanbin Xiao, Sheng Zou, and Feng Zhu. "Analysis and Verification on Mechanics Mechanism for Flat Digging of Grab." MATEC Web of Conferences 256 (2019): 02016. http://dx.doi.org/10.1051/matecconf/201925602016.

Full text

Abstract:

The research on digging resistances is the key to designing the grab, improving the grab’s structure and realizing the automatic flat digging of grab dredger. This article focuses on the mechanical analysis and experimental research of grab’s flat digging combining with theoretical calculation and experiments in dredging process. The theoretical digging resistances in both horizontal and vertical directions have been investigated in mathematical model. With the help of flat digging experiments, the forces on hoist rope and closing rope have been recorded. Then, work out the horizontal and vert

APA, Harvard, Vancouver, ISO, and other styles

20

Yu, Qingbo, Qing Wang, Xuexin Yan, et al. "Ground Deformation of the Chongming East Shoal Reclamation Area in Shanghai Based on SBAS-InSAR and Laboratory Tests." Remote Sensing 12, no. 6 (2020): 1016. http://dx.doi.org/10.3390/rs12061016.

Full text

Abstract:

With the development of the economy, land reclamation, as a result of dredged soil, has become an effective measure to alleviate land scarcity in many coastal cities around the world. Chongming East Shoal (CES), a typical reclamation area in Shanghai that is formed by multi-phase reclamation projects, was selected as the study area. The small baseline subset–interferometry synthetic aperture radar (SBAS-InSAR) method was applied to derive the map of velocity distribution and accumulated deformation with 70 Sentinel-1 synthetic aperture radar (SAR) images collected from 22 March 2015 to 2 Decem

APA, Harvard, Vancouver, ISO, and other styles

21

Guerroué, Pascale Le, Gérard Cariou, Emmanuelle Poupon, and François Xavier Merlin. "Recovery of Sunken and Buried Oil in Coastal Water During the Erika Spill." International Oil Spill Conference Proceedings 2003, no. 1 (2003): 551–58. http://dx.doi.org/10.7901/2169-3358-2003-1-551.

Full text

Abstract:

ABSTRACT The Erika spilled a very high density, high PAH content persistent heavy fuel oil that impacted over 400 kms of France's West Brittany coastline resulting in a protracted period of shoreline cleanup. One of the sites oiled by the HFO was Pen Bron, located seaward of the Croisic salt marshes. This laarge and very environmentally sensitive area with extensive salt pans and bivalve production was polluted by a significant spill of sunken oil buried in the sediment. In view of the risk to local resources and amenities, operations were undertaken to remedy the sunken oil spill: the polluti

APA, Harvard, Vancouver, ISO, and other styles

22

Zhang, Fuhai, Yu Chen, Zhengrong Liu, Lei Chen, Yanhui Bai, and Liang Chen. "Laboratory and Field Experimental Study on the Vacuum Preloading Method with Pumping and Discharging." Advances in Civil Engineering 2020 (December 12, 2020): 1–10. http://dx.doi.org/10.1155/2020/6611609.

Full text

Abstract:

Negative vacuum pressure hardly reaches deep soils due to the drain board bending and serious blockage with the existing vacuum preloading methods (VPMs), thus resulting in poor reinforcement relative to practical engineering applications. To address this issue, this paper proposes a vacuum preloading method with pumping and discharging (a new dredger filling foundation processing technique based on vacuum preloading). This new VPM is developed through technological improvement and plastic drain board innovations in traditional VPMs. The new VPM uses a plastic vertical drainage board with doub

APA, Harvard, Vancouver, ISO, and other styles

23

Arcandra, _., Robert E. Randall, and Moo H. Kim. "Dynamic Analysis of a Semisubmersible-type Bucket Ladder Dredge." Marine Technology and SNAME News 36, no. 03 (1999): 143–56. http://dx.doi.org/10.5957/mt1.1999.36.3.143.

Full text

Abstract:

A semisubmersible-type bucket ladder dredge is a candidate to satisfy the need of the Indonesian tin mining company, PT Timah, to recover tin deposits in water depths of 50 m and deeper. Their current vessel is a barge-type bucket ladder dredge capable of operating in depths shallower than only 30 m. In order to evaluate the dredging capability in 50 m water depth, a dynamic analysis of both semisubmersible-type and barge-type bucket ladder dredges was conducted. The vessel was designed by modifying an existing semisubmersible platform used in the oil and gas industry, while the barge-type use

APA, Harvard, Vancouver, ISO, and other styles

24

Yang, Shuai, and Wenbai Liu. "The Effect of Changing Fly Ash Content on the Modulus of Compression of Stabilized Soil." Materials 12, no. 18 (2019): 2925. http://dx.doi.org/10.3390/ma12182925.

Full text

Abstract:

Adding a curing agent can enhance the mechanical properties of soil including its compressive strength. However, few studies have quantitatively analyzed the compressive strength and microstructure of soils to explore the impact of changes in the microstructure on compressive strength. In addition, the cost of curing agents is too high to be widely used. In this study, curing agents with different proportions of fly ash were added to dredger fill to reduce the amount of curing agents needed. The quantitative analysis of the relationships between the modulus of compression Es and microstructure

APA, Harvard, Vancouver, ISO, and other styles

25

Ali Halassa, Riad, Mekki Bibi, and Mohamed-Aziz Chikouche. "Behavior of Cementitious Materials under the Effect of an Eco-Cement Based on Dredged Sludge." Annales de Chimie - Science des Matériaux 45, no. 6 (2021): 455–65. http://dx.doi.org/10.18280/acsm.450604.

Full text

Abstract:

This paper attempts to simulate the use of green materials from the silt in a dam, and reduce the harmful impacts of siltation on Algerian dams affected by frequent droughts and irregular rainfalls, which are resulted from climate change. These harsh weather conditions are the main cause of water erosion in Algeria, leading to a high silting level in many dams across the country. Therefore, it is necessary to dredge the considerable volumes of sludge in the dam areas. This paper treats the sludge dredged from the K’sob dam, and adds the treated sludge into cement, creating a hybrid binder that

APA, Harvard, Vancouver, ISO, and other styles

26

Poorahong, Hatairat, Nunthanis Wongvatana, Pitthaya Jamsawang, Kamolwan Lueprasert, Kullachai Tantayopin, and Xiao Bin Chen. "Unconfined Compressive and Splitting Tensile Strength of Dredged Sediments Stabilized with Cement and Fly Ash." Key Engineering Materials 856 (August 2020): 367–75. http://dx.doi.org/10.4028/www.scientific.net/kem.856.367.

Full text

Abstract:

The main objective of this study is to investigate the mechanical properties of dredged sediments, which are considered as waste from the process of removing sediments from the bottom of a dam's reservoir. The dredged sediments with stabilization can to be reused as construction and building materials in civil engineering works. The mechanical tests included unconfined compressive strength (UCS) and splitting tensile strength (STS) to understand the behavior of the dredged sediments stabilized with ordinary portland cement (OPC) type I and fly ash (FA). The overall test results indicated that

APA, Harvard, Vancouver, ISO, and other styles

27

Murzin, N. V., F. V. Dudinskiy, and B. L. Talgamer. "Evaluation of non-productive time when calculating pile-type dredge performance." Mining Industry Journal (Gornay Promishlennost), no. 2/2021 (May 10, 2021): 120–26. http://dx.doi.org/10.30686/1609-9192-2021-2-120-126.

Full text

Abstract:

The paper assesses the raw material base and prospects of the dredging method to develop placer deposits and justifies the necessity to enhance its efficiency, including the reduction of non-productive time of mining equipment. Specific features of dredging that cause technological non-productive time of the dredge are described and compared to mining with continuous bucket excavators. In order to analyze and assess the impact of non-productive time on the dredge performance, it is proposed to divide all time consumed into groups, identifying time losses associated directly with working on the

APA, Harvard, Vancouver, ISO, and other styles

28

Shi, Jian, Shengnian Wang, Wenzhe Cao, Jun Su, and Xingjin Zhang. "Mechanical Properties and Strengthening Mechanism of Dredged Silty Clay Stabilized by Cement and Steel Slag." Materials 15, no. 11 (2022): 3823. http://dx.doi.org/10.3390/ma15113823.

Full text

Abstract:

The high moisture content and low strength of dredged soft soils result in significant difficulties in directly reutilizing them in engineering. Improving their mechanical properties effectively and achieving re-utilization with the maximum benefit in engineering is the key to disposing of dredged soils with high moisture content. This study investigated the influences of cement and steel slag ratio, moisture content, the maximum particle size of steel slag, and curing age on the compressive strength of dredged silty clay in a plastic flow state. The performance improvement of dredged silty cl

APA, Harvard, Vancouver, ISO, and other styles

29

Bocheński, Damian. "Investigations of operational driving loads of bucket chains and manoeuvre hoisting winches on multi-bucket dredgers." Polish Maritime Research 15, no. 3 (2008): 42–48. http://dx.doi.org/10.2478/v10012-007-0082-1.

Full text

Abstract:

Investigations of operational driving loads of bucket chains and manoeuvre hoisting winches on multi-bucket dredgers The paper concerns problems of preliminary designing of bucket dredgers' power plants. This paper presents results of investigations of six bucket dredgers in service. The operational investigations consisted in measuring the parameters which characterize working conditions of two main receivers of mechanical energy: bucket chains and swing winches. In the paper characteristics of disposition of loading of bucket chains and swing winches are presented. They covered average value

APA, Harvard, Vancouver, ISO, and other styles

30

Chen, Yi Xuan, Xiu Li Sun, and Zhi Hua Li. "Mechanical Properties of Fly Ash-Slag-Dredged Silt System Stimulated by Alkali." Advanced Materials Research 807-809 (September 2013): 1140–46. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.1140.

Full text

Abstract:

The objective of this work is to investigate the stimulation effect of the addition of alkali on the fly ash and slag for stabilizing dredged silt. Based on the test results, a viable alternative for the final disposal of dredged silt as subgrade construction materials were proposed. For this purpose, several mixtures of dredged silt-fly ash-slag and alkali were prepared and stabilized/solidified. In this system, fly ash and slag were used as hardening agents (solidified materials) of dredged silt and alkali was used as activator of fly ash and slag. The shear strength of the mixture was teste

APA, Harvard, Vancouver, ISO, and other styles

31

Abriak, Yassine, Walid Maherzi, Mahfoud Benzerzour, Ahmed Senouci, and Patrice Rivard. "Valorization of Dredged Sediments and Recycled Concrete Aggregates in Road Subgrade Construction." Buildings 13, no. 3 (2023): 646. http://dx.doi.org/10.3390/buildings13030646.

Full text

Abstract:

Large quantities of dredged sediments and recycled concrete materials are generated every year all over the world. The disposal of these large quantities in landfills represents serious environmental problems. Furthermore, high-quality raw materials for construction are depleting, and their use cannot be sustained. The valorization of dredged sediments and recycled concrete materials as alternative construction materials has the potential to reduce the impact of these two issues. In this context, this study aims at investigating the feasibility of using dredged sediments and recycled concrete

APA, Harvard, Vancouver, ISO, and other styles

32

Yang, Xiao Yan, Wen Bai Liu, Jia Jun Wang, and Wen Hui Shi. "The Research on the Mechanical Properties of the same Curing Agent of Different Soil Dredged Mud." Advanced Materials Research 800 (September 2013): 181–88. http://dx.doi.org/10.4028/www.scientific.net/amr.800.181.

Full text

Abstract:

Through confined compression test and direct shear test, studied the mechanical properties of the same curing agent of different soil dredged mud, compared the difference of the same curing agent of different soil dredged mud. By confined compression test, the compression modulus of clay, silty sand and silty soil dredged mud after curing increases by 603.7%, 529.0% , 603.7% respectively. By direct shear test, the shear strength of clay dredged mud after curing increases to infinity; silty sands shear strength after curing increases by 209.1% in average; silty soils shear strength increases af

APA, Harvard, Vancouver, ISO, and other styles

33

Frar, Ikram, Houdaifa Bakkali, Mohammed Ammari, and Laïla Ben Allal. "Integration of Port Dredged Sediments Into the Production of Fired Clay Bricks." Journal of Solid Waste Technology and Management 45, no. 4 (2019): 428–40. http://dx.doi.org/10.5276/jswtm/2019.428.

Full text

Abstract:

Bricks manufactured, based on dredged sediments extracted from Tangier and Larache ports in Morocco were investigated. Chemical, physical, geotechnical, mineralogical and environmental characterizations studies of ports dredged sediments were performed. Partial substitution of natural clay by dredged sediments was achieved with different substitution rates by weight (20%, 40%, 50%, 60% and 70%) to manufacture brick samples at the laboratory scale. The compressive strength was the factor determining the optimal substitution rate of the natural clay. Compressive strength values of fired bricks w

APA, Harvard, Vancouver, ISO, and other styles

34

Chen, Qiunan, Xiaodi Xu, Ao Zeng, et al. "Study on the Macro-/Micrometric Characteristics and Mechanical Properties of Clayey Sandy Dredged Fill in the Guangdong Area." Materials 17, no. 23 (2024): 6018. https://doi.org/10.3390/ma17236018.

Full text

Abstract:

The study of dredged fill in Guangdong (GD), China, is of great significance for reclamation projects. Currently, there are relatively few studies on dredged fill in Guangdong, and there are many differences in the engineering characteristics of dredged fill foundations formed through land reclamation and natural foundations. In order to have a more comprehensive understanding of the physico-mechanical properties of blowing fill in the coastal area of GD and to understand the effect of its long-term creep row on the long-term settlement and deformation of buildings, the material properties, mi

APA, Harvard, Vancouver, ISO, and other styles

35

Wang, Dong Xing, Hong Xing Wang, and Wen Zhao Chen. "Reinforcement Mechanism of Cement/Lime-Fly Ash Treated Sediments as Road Construction Materials." Applied Mechanics and Materials 99-100 (September 2011): 924–27. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.924.

Full text

Abstract:

Solidified dredged materials as environment-friendly materials in construction domain are increasingly popular because of their better mechanical performance and low pollution. Based on the physical characteristic of dredged marine sediments, a series of tests, such as unconfined compressive strength test and tensile strength test, were performed to explore the mechanical properties of cement/lime-fly ash treated sediments for the beneficial use in road construction. Finally, the reinforcement mechanism of solidified sediments was explored by SEM tests from the point of view of the formation o

APA, Harvard, Vancouver, ISO, and other styles

36

Staniszewska, Marta, Helena Boniecka, and Hanna Cylkowska. "Environmental aspects of dredging technology." Biuletyn Instytutu Morskiego 32, no. 1 (2017): 84–94. http://dx.doi.org/10.5604/01.3001.0010.6973.

Full text

Abstract:

This work is an attempt to answer the question of what types of dredgers applied in dredging works at sea are most advantageous in the context of the rule of the most limited possible intervention into the marine environment. Elaborated reviews and depictions of the most popular types of dredgers are presented. An analysis with respect to the impact of the phenomenon of releasing pollutants accumulated in bottom sediments at all stages of the dredging process is also conducted. Its results indicate that application of mechanical or hydraulic suction dredgers is the most advantageous technique

APA, Harvard, Vancouver, ISO, and other styles

37

Serbah, Boumediene, Maghnia Asmahane Bourabah, Joanna Eid, et al. "VALORIZATION OF DREDGED SEDIMENTS FROM DAMS IN PAVEMENT DESIGN." Architecture and Engineering 8, no. 4 (2023): 99–117. http://dx.doi.org/10.23968/2500-0055-2023-8-4-99-117.

Full text

Abstract:

Introduction: This study is part of research aimed at valorizing dredged sediments through the development of formulations for use in road engineering. The purpose of the study was to determine if the materials selected for pavement layers comply with road design standards, in particular, with specific requirements for density, grain size, plastic properties, organic matter, and mechanical performance. Methods: To determine the physical-chemical and mechanical characteristics of the dredged sediments obtained from samples taken from the Bakhadda dam located in western Algeria’s semi-arid clima

APA, Harvard, Vancouver, ISO, and other styles

38

Petti, R., M. Plötze, A. Puzrin, and C. Vitone. "Innovative Binders for the Chemo-Mechanical Treatment of Dredged Sediments." IOP Conference Series: Earth and Environmental Science 1480, no. 1 (2025): 012123. https://doi.org/10.1088/1755-1315/1480/1/012123.

Full text

Abstract:

Abstract The article reports results from an experimental study on the chemo-mechanical treatment of dredged marine sediments making use of sustainable and original solutions. Specifically, the research entails the use of seashells and biochar as additives for the chemo-mechanical improvement of dredged fine-grained sediments that were artificially polluted by kerosene. The study includes unconfined compression tests, chemical analyses, and SEM photographs of various sediment-based mixtures. Evidence is provided that seashells represent a viable alternative to cement, as they were found to be

APA, Harvard, Vancouver, ISO, and other styles

39

Supakata, Nuta, Pilaiporn Prachapadoong, Phathhanan Chaisupharut, and Seksan Papong. "Characteristics and Environmental Assessment of Facing Bricks Produced from Dredged Sediments and Waste Glasses." Materials Science Forum 883 (January 2017): 37–45. http://dx.doi.org/10.4028/www.scientific.net/msf.883.37.

Full text

Abstract:

The laboratory-scale study was conducted to assess the feasibility of using dredged sediments with waste glasses to produce facing bricks. This study was investigated into three different proportions of waste glasses ranging from 0, 20, and 40% by weight mixed with dredged sediments as raw materials in producing facing bricks. The characteristics of the dredged sediments, waste glasses, and fired facing bricks were analyzed using X-ray fluorescence (XRF) and X-ray diffraction (XRD. The physical-mechanical properties of fired bricks were compliant with the criteria for facing bricks (Thai Indus

APA, Harvard, Vancouver, ISO, and other styles

40

Duszyński, Remigiusz, Angelika Duszyńska, and Stefan Cantré. "New Experiences in Dike Construction with Soil-Ash Composites and Fine-Grained Dredged Materials." Studia Geotechnica et Mechanica 39, no. 4 (2017): 17–24. http://dx.doi.org/10.1515/sgem-2017-0033.

Full text

Abstract:

Abstract The supporting structure inside a coastal dike is often made of dredged non-uniform sand with good compaction properties. Due to the shortage of natural construction material for both coastal and river dikes and the surplus of different processed materials, new experiments were made with sand-ash mixtures and fine-grained dredged materials to replace both dike core and dike cover materials resulting in economical, environmentally friendly and sustainable dikes. Ash from EC Gdańsk and dredged sand from the Vistula river were mixed to form an engineering material used for dike construct

APA, Harvard, Vancouver, ISO, and other styles

41

Bouhamou, Nasr Eddine, Fouzia Mostefa, and Abdelkader Mebrouki. "The Influence of Dredged of Natural Waste on Shrinkage Behavior of Self Compacting Concrete for Achieving Environmental Sustainability." Key Engineering Materials 650 (July 2015): 91–104. http://dx.doi.org/10.4028/www.scientific.net/kem.650.91.

Full text

Abstract:

Every year, millions of cube meters are dredged from dams and restraints as an entertaining and prevention procedure all over the world. These dredged sediments are considered as natural waste leading to an environmental, ecological and even an economical problem in their processing and deposing.Nevertheless, in the context of the sustainable development policy, a way of management is opened aiming to the valorization of sediments as a building material and particularly as a new binder that can be industrially exploited and that improve the physical, chemical and mechanical characteristics of

APA, Harvard, Vancouver, ISO, and other styles

42

Bałachowski, Lech, and Zbigniew Sikora. "MECHANICAL PROPERTIES OF BOTTOM ASH – DREDGED MATERIAL MIXTURES IN LABORATORY TESTS." Studia Geotechnica et Mechanica 35, no. 3 (2013): 3–11. http://dx.doi.org/10.2478/sgem-2013-0026.

Full text

Abstract:

Abstract Bottom ash from EC Gdańsk and dredged material taken from the mouth of The Vistula were mixed to form an engineering material used for dike construction. Mixtures with different bottom ash content were tested in laboratory to determine its basic physical and mechanical properties. The optimum bottom ash-dredged material mixture, built in the corps of the test dike, contains 70% of ash. The optimum bottom ash content in the mixture was chosen taking into account high internal friction angle, good compaction and reduced filtration coefficient. The maximum dry density of the mixtures was

APA, Harvard, Vancouver, ISO, and other styles

43

Utama, K. A., T. Harianto, A. B. Muhiddin, and A. Arsyad. "Mechanical properties of dredged soil reinforced with natural pozzolan and shredded tires." IOP Conference Series: Earth and Environmental Science 1117, no. 1 (2022): 012007. http://dx.doi.org/10.1088/1755-1315/1117/1/012007.

Full text

Abstract:

Abstract The utilization of waste materials is still an interesting subject to investigate. The dredged soil (DS) was classified as a waste material that requires more effort to improve its mechanical properties. Adding natural pozzolan (NP) material and shredded tires (ST) can be an exciting field to investigate and quite friendly to the environment. This research objective investigates the mechanical properties of the dredged soil stabilized with natural pozzolan material and shredded tires as a new way of green engineering. This research involved trass as a natural pozzolan and shredded tir

APA, Harvard, Vancouver, ISO, and other styles

44

Lee, Miji, Kyoungju Mun, Gillim Yoon, Hyunmi Eum, and Yuntae Kim. "Mechanical and Germination Characteristics of Stabilized Dredged Soil." Journal of the Korean geoenvironmental society 15, no. 3 (2014): 33–40. http://dx.doi.org/10.14481/jkges.2014.15.3.33.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Tang, Chao-Sheng, Qing Cheng, Peng Wang, Hong-Sheng Wang, Yue Wang, and Hilary I. Inyang. "Hydro-mechanical behavior of fiber reinforced dredged sludge." Engineering Geology 276 (October 2020): 105779. http://dx.doi.org/10.1016/j.enggeo.2020.105779.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Federico, Antonio, Claudia Vitone, and Agnese Murianni. "On the mechanical behaviour of dredged submarine clayey sediments stabilized with lime or cement." Canadian Geotechnical Journal 52, no. 12 (2015): 2030–40. http://dx.doi.org/10.1139/cgj-2015-0086.

Full text

Abstract:

This paper presents the preliminary results of experimental research into the stabilization of clayey sediments dredged from the Port of Taranto (Italy) with cement and (or) lime. First, the physical properties of the natural sediments are briefly described and compared with those of the same sediments when treated with different additives and cured up to 4 years. In particular, the effect of the treatment on the soil plasticity properties is originally analyzed in terms of plasticity paths. Then, the influence of the different stabilizing agents on the compression behaviour of the dredged soi

APA, Harvard, Vancouver, ISO, and other styles

47

Zheng, Qingsong, Piaoyang Cai, Yourong Zeng, Yun Wang, Ming Feng, and Chaohua Jiang. "Experimental Study on Performance and Mechanism of High-Strength Artificial Blocks Based on Dredged Silt." Buildings 14, no. 8 (2024): 2407. http://dx.doi.org/10.3390/buildings14082407.

Full text

Abstract:

This paper investigates the preparation and properties of high-strength artificial blocks made from dredged silt with a clay content of 52.0%. A comparative analysis of the mechanical properties of dredged silt blocks produced using semi-dry pressing and vibration molding methods was conducted. The study examined the effects of using fly ash (FA) and ground granulated blast-furnace slag (GGBS) as substitutes for cement on the compressive strength, splitting tensile strength, and dry shrinkage of the blocks. Additionally, the microstructure of the dredged silt blocks was analyzed using scanning

APA, Harvard, Vancouver, ISO, and other styles

48

Cranfield, H. J., A. Dunn, I. J. Doonan, and K. P. Michael. "Bonamia exitiosa epizootic in Ostrea chilensis from Foveaux Strait, southern New Zealand between 1986 and 1992." ICES Journal of Marine Science 62, no. 1 (2005): 3–13. http://dx.doi.org/10.1016/j.icesjms.2004.06.021.

Full text

Abstract:

Abstract Disease caused by the haplosporidian parasite, Bonamia exitiosa, swept through the dredge oyster (Ostrea chilensis) population of Foveaux Strait between 1986 and 1992, with consequent mortality reducing the population to 9% of the pre-disease level. Dead and dying oysters were first seen by fishers in far western Foveaux Strait in 1985 and more were found further east in 1986. Infection spread slowly through Foveaux Strait so the progress of the epizootic can be described from population surveys. A wave of infection radiated through the oyster population from the epicentre of infectio

APA, Harvard, Vancouver, ISO, and other styles

49

Ji, Qiaoling, Yingjian Wang, Xiuru Jia, and Yu Cheng. "Experimental Study on Mechanical Properties and Stability of Marine Dredged Mud with Improvement by Waste Steel Slag." Buildings 14, no. 11 (2024): 3472. http://dx.doi.org/10.3390/buildings14113472.

Full text

Abstract:

As marine-dredged mud and waste steel slag in coastal port cities continue to soar, the traditional treatment method of land stockpiling has caused ecological problems. Thus, it is necessary to find a large-scale resource-comprehensive utilization method for dredged mud and waste steel slag. This study uses waste steel slag and composite solidifying agents (cement, lime, fly ash) to physically and chemically improve marine-dredged mud. The physical improvement effect of the particle size and dosage of waste steel slag was studied by the shear strength test under the effect of freeze–thaw cycle

APA, Harvard, Vancouver, ISO, and other styles

50

Tang, Wai Ching, and Hong Zhi Cui. "Mechanical and Durability Properties of Concrete Using Dredged Marine Sand." Materials Science Forum 890 (March 2017): 406–10. http://dx.doi.org/10.4028/www.scientific.net/msf.890.406.

Full text

Abstract:

This paper reports an experimental investigation on the mechanical and durability properties of concrete using dredged marine sand (DMS). Two sources of DMS were used and the influence of water treatment prior to mixing concrete was studied. Compressive strength, tensile strength and elastic modulus of concrete with DMS were evaluated and compared with concrete made of river sand. The corrosion performance of reinforced concrete using sea dredged aggregate was examined by half-cell potential test. The results showed that the grading of DMS is suitable for concrete production. The compressive s

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!