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Journal articles on the topic 'Overburden thickness'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Wang, Long, Zheng-quan Yang, Jian-ming Zhao, Xiao-sheng Liu, and Yan-feng Wen. "Transmitting Characteristics of Seismic Motion in Super-Deep Overburden Layer Ground." Shock and Vibration 2021 (February 27, 2021): 1–23. http://dx.doi.org/10.1155/2021/8898012.

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Dynamic response characteristics and antiseismic performance of the structures which were constructed on the super-deep overburden layer are affected obviously by the seismic motion characteristics of the super-deep overburden layer foundation. In this paper, the seismic motion characteristics of horizontally stratified super-deep overburdenIn this paper, the seismic motion characteristics of horizontally stratified super-deep overburden based on the research results of on-site in situ tests and indoor material property tests, the horizontal shear layer method that can consider the nonlinear c

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2

Liu, Jiang. "Study on Numerical Simulation of Overburden Failure Height in Stratified Full-Mechanized Caving of Extremely Thick Coal Seam." International Journal of Energy 4, no. 3 (2024): 1–5. http://dx.doi.org/10.54097/cbyyt250.

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In order to determine the failure characteristics of overburden rock under the condition of multi-layer fully mechanized caving mining of soft overburden rock in super thick coal seam, the 1101 working face of Jundong No. 2 Coal mine is taken as the object, the key layer theory and numerical calculation are used to analyze the failure height of overburden rock in the process of regional stratified fully mechanized caving mining, and the relationship between the mining thickness and the failure height of overburden rock is determined. The research shows that the overburden failure height is lin

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3

Liu, Hai Jiao, Ya Bin Zhang, and Yong Li Chen. "Influence of Air Leakage of the Overburden Layer on Pit Temperature from Open Pit to Underground Mining." Applied Mechanics and Materials 353-356 (August 2013): 3566–73. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.3566.

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To mines turning from open pit to underground mining with caving method as transition, air leakage of overburden layer in winter can lead to lower pit temperature, affecting their regular production. The paper is based on the theory of fluid flow in porous media, simulating wind velocity of overburden layer air leakage with FLUENT software and calculating influence of air leakage of the overburden layer on pit temperature under the condition of various porosities and thickness. The conclusion is drawn that overburden layer thickness is above 40m,air leakage influence on pit temperature is rela

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4

Wang, Yun Long, and Zhong Sheng Tan. "Overburden Rock Stability Analysis of Shallow Tunnel." Applied Mechanics and Materials 105-107 (September 2011): 1304–7. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1304.

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As for shallow tunnels through the rock layers, the stability of the overburden rock has a decisive role on the tunnel stability; furthermore, analyzing the stability of the overburden rock is very important to the supporting design and the choice of excavation method. Method of elastic foundation beam is used to research the moment of overburden rock, and the formula of overburden rock stable thickness is finished. Seven sections of JIAOZHOU Bay Subsea Tunnel are took for example to analyze the safety factor of different span and overburden rock thickness, then the stability of overburden roc

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5

Su, Xiaochao, Zhilong Chen, Xudong Zhao, Xiaobin Yang, Qilin Feng, and Haizhou Tang. "Optimization Design of Underground Space Overburden Thickness in a Residential Area Concerning Outdoor Thermal Environment Evaluation." Sustainability 10, no. 9 (2018): 3205. http://dx.doi.org/10.3390/su10093205.

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Reasonable design of the overburden thickness of underground space (OTUS) can influence the outdoor thermal environment by affecting the ground plant communities. To optimize the design of the OTUS for improving the outdoor thermal environment, this study summarized the influence mechanism of the OTUS on the outdoor thermal environment and proposed a framework of the optimization design of underground space overburden thickness. A typical row layout residential area in Nanjing, China, was taken as the research object on which to perform a numerical study of the influence of plant communities f

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6

Yuan, Yafei, Guangli Guo, Cheng Huang, et al. "Breakage Patterns of High-Level Thick Weakly Cemented Overburden for Coal Safe and Sustainable Mining." Sustainability 16, no. 13 (2024): 5707. http://dx.doi.org/10.3390/su16135707.

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The breakage of massive thick weakly cemented rock layer is likely to cause strong mine earthquakes, which threatens the safe and sustainable production of the mine. In order to reveal the breakage law of high-level giant-thickness weakly cemented overburden rock and prevent the occurrence of mine earthquakes, we took the 2201 and 2202 working faces of Yingpanhao Coal Mine as the research object, established the mechanical calculation model of breakage of the high-level giant-thickness weakly cemented overburden, and used the methods of medium-thickness plate and short-beam function to solve t

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7

Ma, Yunsheng, Zizhuo Tao, Yu Zhang, Zhenxue Liu, Shengke Wei, and Fenghao Qing. "Slope Stability Analysis of Mounded Storage Tank under Different Compaction Coefficients." Advances in Civil Engineering 2024 (February 13, 2024): 1–12. http://dx.doi.org/10.1155/2024/6682882.

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Mounded storage tank is to cover the storage tank with compacted soil on the ground to avoid steam cloud explosion, ensuring the stability and safety of the storage tank. In view of the influence of large diameter and surface radian of the tank, slope stability of mounded storage tank under different compaction coefficients has become the focus of research. In this paper, a series of laboratory tests were carried out to obtain the physical and mechanical parameters of the soil samples collected from the overburden of one specific engineering project. On this basis, Plaxis2D finite element soft

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8

Darijani, Mehrdad, Colin G. Farquharson, and Peter G. Lelièvre. "Clustering and constrained inversion of seismic refraction and gravity data for overburden stripping: Application to uranium exploration in the Athabasca Basin, Canada." GEOPHYSICS 85, no. 4 (2020): B133—B146. http://dx.doi.org/10.1190/geo2019-0525.1.

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Gravity signatures from features associated with the footprints of uranium deposits within the sandstones and basement of the Athabasca Basin are masked in the measured gravity by the contribution from glacial sediments (overburden), in particular by the variable thickness of the overburden. The 2D inversions of seismic refraction and gravity data are assessed as a means of reliably mapping overburden thickness, enabling the contribution to gravity from the overburden to be taken into account and density anomalies associated with deeper mineralization and alteration to be reconstructed through

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9

Collins, Donley S., and Thomas C. Nichols Jr. "Comparing Geotechnical to Geologic Estimates for Past Overburden in the Pierre-Hayes, South Dakota Area: An Argument for In-situ Pressuremeter Determination." Mountain Geologist 24, no. 2 (1987): 50–53. http://dx.doi.org/10.31582/rmag.mg.24.2.50.

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A knowledge of past overburden thickness is useful for designing underground structures such as waste repositories. This study attempts to determine d a correlation can be made between a geologic estimate and two types of geotechnical calculations of past overburden thickness. i%r the PierreHayes, South Dakota area, we have found that of the hw geotechnical determinations, the in-situ pressuremeter is better than the laboratory consolidation determination as an indicator of past overburden thickness. In the PierreHayes area, Late Cretaceous Pierre Shale is the only bedrock present, but clasts

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10

Zang, Chuanwei, Feng Bai, Miao Chen, et al. "Study on Overlying Strata Movement and Stress Distribution of Coal Mining Face with Unequal Thickness Bedrock." Processes 13, no. 3 (2025): 752. https://doi.org/10.3390/pr13030752.

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The variation in roof structure induced by changes in bedrock thickness exerts a direct influence on the stress distribution within lower strata, consequently governing the stability of roadway surrounding rock. To investigate the impact of bedrock thickness variations on overburden fracture behavior and stress evolution in deep-buried thick loose layers, a numerical simulation model of an unequal-thickness bedrock working face was developed using discrete element numerical simulation software. This model was utilized to conduct a systematic investigation into the fracture characteristics of t

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11

Guo, Caixia, Jie Qi, Leilei Shi, and Qian Fang. "Reasonable overburden thickness for underwater shield tunnel." Tunnelling and Underground Space Technology 81 (November 2018): 35–40. http://dx.doi.org/10.1016/j.tust.2018.06.016.

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12

Caron, Raymond M., Claire Samson, Martin Bates, and Michel Chouteau. "Correcting airborne gravity data for overburden thickness: a case study from the Nechako interior plateau, British Columbia." Canadian Journal of Earth Sciences 56, no. 5 (2019): 483–92. http://dx.doi.org/10.1139/cjes-2017-0209.

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Large areas of bedrock in Canada, such as in the interior plateau of British Columbia, are covered by a thick glacial overburden. Lateral variations in overburden thickness can create spurious anomalies in gravity data. These anomalies can be of a size and amplitude similar to those associated with mineral bodies and can be mistaken for them. A methodology is introduced that corrects gravity data for changes in overburden thickness through the use of a bedrock topography map created by integrating information from a helicopter transient electromagnetic survey with geological survey data, well

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13

Pettifer, G. R., N. Djordjevic, D. Heislers, J. Schaeffer, and J. A. Withers. "Geophysical and image processing methods for detection of fireholes in brown coal, Latrobe Valley." Exploration Geophysics 20, no. 2 (1989): 153. http://dx.doi.org/10.1071/eg989153.

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Fireholes at the top of the thick Latrobe Valley brown coal seams pose a geotechnical hazard to overburden dredges and reduce coal reserves. Overburden thickness (typically 10 to 15 m) is up to 50 m in the fireholes, which are from 20 to hundreds of metres in diameter and are infilled with baked clays, soft lacustrine clays and alluvial deposits.Given the complexity of firehole geometry and overburden geology, firehole definition prior to overburden stripping, by drilling alone, is expensive and is not definitive. To improve firehole exploration, geophysical methods were tried in a test area w

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14

Liu, Guangchun. "Characteristics and Laws of Overburden Failure Caused by Repeated Mining of Multi Coal Seams." International Journal of Energy 3, no. 2 (2023): 44–49. http://dx.doi.org/10.54097/ije.v3i2.011.

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With the depletion of coal resources, people began to mine deeper coal resources. In response to the special geological conditions of multiple coal seams, scientific and safe mining of deep coal seams has great practical significance and value. This article analyzes and studies the characteristics and laws of overburden failure caused by multi coal seam mining through physical simulation experiments in Majiazhuang coal mine with multiple coal seam occurrence conditions. The research results indicate that the failure of the overlying rock exhibits a "two zone" characteristic, that is, only the

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15

ten Veen, J. H., S. F. van Gessel, and M. den Dulk. "Thin- and thick-skinned salt tectonics in the Netherlands; a quantitative approach." Netherlands Journal of Geosciences - Geologie en Mijnbouw 91, no. 4 (2012): 447–64. http://dx.doi.org/10.1017/s0016774600000330.

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AbstractThe Zechstein salt in the Dutch part of the North Sea Basin played a key role in the generation of successful petroleum plays. This is not only because of its sealing capacity, but also because the salt occurs in structures that provide lateral and vertical traps. The structural styles of areas with thick salt and those with none- or thin salt are completely different during phases of extensional or compressional tectonics. This indicates that, indirectly, the depositional thickness of the main Zechstein salt is essential in regulating the loci of the Dutch petroleum systems. In this p

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16

Ishola, S. A., O. O. Oyebolu, and P. R. Ikhane. "Mapping of Aquifer Characteristics and Reservoir Protective Capacity Variation in Obafemi-Owode Local Government Area, Ogun State South-West Nigeria." Nigerian Journal of Physics 33, no. 1 (2024): 88–107. http://dx.doi.org/10.62292/njp.v33i1.2024.208.

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Variation of Aquifer potential characteristics and its impacts on the groundwater subsurface protection of the aquiferous zone using electrical resistivity method was carried out at Obafemi-Owode Local Government Area, Ogun State South-West Nigeria with the principal purpose of assessing and rating aquifer protective capacity of the overburden units in the area. Twenty seven (27) vertical electrical sounding (VES) were conducted using Schlumberger configuration with the maximum electrode spacing of 100m at each point using Allied OMHEGA Resistivity meter. The data were interpreted using partia

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17

Li, Zhuxin, Hao Zou, Shengqi Jian, et al. "Study on the Effect of Liquefiable Overburden Foundations of Rockfill Dams Based on a Pore Pressure Model." Water 16, no. 18 (2024): 2649. http://dx.doi.org/10.3390/w16182649.

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China’s southwestern region boasts abundant hydropower resources. However, the area is prone to frequent strong earthquakes. The areas surrounding dam sites typically have deep overburden, and the liquefaction of saturated sand foundations by earthquakes poses significant safety risks to the construction of high dams in the southwest. The effects of liquefaction and reinforcing measures on the foundations of rockfill dams on liquefiable overburden under seismic action are currently the subject of somewhat unsystematic investigations. The paper utilizes the total stress and effective stress met

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18

Paudyal, Kalyan. "Analysis of support system for a conveyance tunnel in the higher Himalayan zone: A case study on Upper Tamakoshi HEP, Nepal." Journal of Innovations in Engineering Education 4, no. 1 (2021): 90–97. http://dx.doi.org/10.3126/jiee.v4i1.35393.

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After excavation, insitu stress conditions are changed which lead deformation due to the stress concentration. For the stability in the excavated tunnel profile, appropriate support system is essential. To recommend the support system, site specific data are used from Higher Himalayan Region of Nepal. Study is focused on 3 m and 6 m size inverted D Shaped tunnel with three different overburden thickness. For the analysis of support system: Empirical method, Analytical method and Numerical Modeling are performed. Result obtained from the different approaches for three different overburden heigh

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19

Yin, Zengde, Jinxiao Liu, Feng Zhang, Yongle Liu, and Wenxin Li. "Motion model and key parameters of overburden strata in longwall filling face." E3S Web of Conferences 303 (2021): 01022. http://dx.doi.org/10.1051/e3sconf/202130301022.

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When the paste material is filled into the longwall working face of the coal mine, it firstly controls the movement of the overburden strata, thereby limiting the movement of the far field rock layer and reducing the subsidence. With this regard, the paste filling technology of the long-wall mining can address the limitation of “three down, one up” (mining under water body, building and rail, and on karst water body) technology in coal mining, thus improving the extraction rate of coal resource. To control the movement of the overburden strata near the working face, the prerequisite is to clar

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20

Li, Xiao Long, Bing Long Wang, Xue Li, and Chang Ji. "Analysis of Anti-Floating Measures and Construction Parameters of Shield Tunnel through River under Ultra-Shallow Covering." Applied Mechanics and Materials 353-356 (August 2013): 628–34. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.628.

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Shield tunnel through the river under shallow covering usually facing the phenomenon of tunnel floating due to the thickness of overburden layer inadequate,and resulting in flooding accident due to the overburden layer split.Aiming at the project of Hangzhou metro line one through the Tangjia river under ultra-shallow covering,checking the thickness of overburden layer and taking the measures of anti-floating plate,uplift pile and jet-grouting piles to resist tunnel floating;through the control of soil chamber pressure,driving speed and grouting pressure in the process of construction,tunnel a

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21

Wang, Hong, Wenhua Wang, Runcheng He, et al. "Experimental Study on Unsteady Radon Exhalation from the Overburden Layer of the Uranium Mill Tailings Pond under Rainfall." Science and Technology of Nuclear Installations 2022 (September 19, 2022): 1–8. http://dx.doi.org/10.1155/2022/9366056.

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In order to find out radon reduction performance of the overburden layer on uranium mill tailings (UMTs) pond beach surface after rainfall, the rainfall simulation experiment of the overburden layer was carried out with the self-developed equipment. Based on the radon migration model of the overburden layer on the UMTs pond beach surface, the change rule of radon exhalation in four types of compactness of the overburden layer within 120 hours after rainfall was studied, and the corresponding moisture content was also analyzed. The results show that the radon concentration in the overburden lay

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22

Xuan, Dayang, Jian Li, Kaidan Zheng, and Jialin Xu. "Experimental Study of Slurry Flow in Mining-Induced Fractures during Longwall Overburden Grout Injection." Geofluids 2020 (September 4, 2020): 1–10. http://dx.doi.org/10.1155/2020/8877616.

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Slurry flow in mining-induced overburden fractures is an important theoretical concept for the grouting design of longwall overburden grout injection engineering. In this study, a visual experimental simulation system of longwall overburden grouting was designed to study the flow, pressure distribution, consolidation, and fill thickness of fly ash slurry in overburden bedding separation. Experiments showed that the slurry generates a radial and bidirectional flow during nonpressure grouting and presents itself as an approximately elliptical dominant flow channel under pressure injection. This

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23

LUKOMSKYI, Vladyslav, and Mariia KURYLO. "CUT-OFF PARAMETRES FOR RESERVES CALCULATION OF CONSTRUCTION STONE DEPOSITS WITHIN THE DISTRIBUTION OF GLACIAL SEDIMENTS." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 4 (107) (2024): 84–88. https://doi.org/10.17721/1728-2713.107.10.

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The study objects are crystalline rocks deposits, which are developed for the production of construction and crushed stone, and are localized within the distribution of glacial and fluvioglacial deposits. Traditionally, the cut-off parameters for such deposits mainly take into account the requirements for the quality of the main mineral, the mining depth and the overburden thickness. The study systematizes the cut-off parameters for reserves calculating for deposits of construction and crushed stone. The cases of assessment of the main mineral, co-occurring and by-product minerals have been de

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24

Tang, Chuan, Yongqian Qu, Degao Zou, and Xianjing Kong. "Investigation of the Effective Numerical Model for Seismic Response Analysis of Concrete-Faced Rockfill Dam on Deep Overburden." Water 16, no. 22 (2024): 3257. http://dx.doi.org/10.3390/w16223257.

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The construction of high rockfill dams on deep overburden in seismically active regions poses significant challenges. Currently, there are no standardized guidelines for defining the computational domain range in seismic analysis, necessitating the establishment of a universally applicable computational domain range that optimizes the balance between computational accuracy and efficiency. This has critical engineering implications for the seismic analysis of rockfill dams on deep overburden. This study employed the seismic wave input method to consider the dynamic interaction between the dam,

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25

OLAOSEBIKAN, PETER ADENIJI. "Assessment of Groundwater Potential using Geophysical Techniques in Some Part of OFU Local Government Kogi State, North Central Nigeria." International Journal of Innovative Science and Research Technology (IJISRT) 9, no. 12 (2024): 1168–210. https://doi.org/10.5281/zenodo.14737452.

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The groundwater potential of Some part in Ofu Local government Kogi State was investigated using vertical electrical sounding method. A total number of 20 vertical electrical sounding data were acquired using Schlumberger array configuration. The data obtained were iterated using IPI2WIN software from which the geoelectric parameters (Resistivity, thickness and depth) were obtained. A total of 4-5 earth modeled layers were delineated which include, Topsoil, clay, sandy clay, sandstone and water-saturated sand layers were identified. Resistivity values for topsoil ranges from 1103-294 Ωm

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26

Trofimetz, L. N., M. G. Kurochitskaya, A. P. Alexandrova, A. M. Saraeva, and A. A. Lavrusevich. "The use of caesium-137 to assess soil losses from agricultural fields (Orel region)." IOP Conference Series: Earth and Environmental Science 1010, no. 1 (2022): 012056. http://dx.doi.org/10.1088/1755-1315/1010/1/012056.

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Abstract The paper presents the results of experimental studies of the intensity of overburden delivery from agricultural fields in the districts of the Orel region for the period from 1963 to 2020. The isotope of cesium-137 of global and Chernobyl origin was used to detect at depth the overburdens that came from the fields to the depression complex in 1963, 1986, and 2020. According to the thickness of the overburden layer, the intensity of overburden delivery was determined for the periods 1963-1986 and 1986-2020. The authors found that in 1963-1986, the intensity of soil material losses fro

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27

Lukuman, Abudulawal, Adetona Amidu Sikiru, Ayoade Adeagbo Olusola, and Adesanjo Adejumo Saheed. "Overburden Thickness and Potential Tonnage Estimate of Olode-Gbayo Pegmatite Deposit, Southwestern Nigeria, Using Electrical Resistivity Method." Journal of Geography, Environment and Earth Science International 10, no. 2 (2017): 1–12. https://doi.org/10.9734/JGEESI/2017/32811.

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Prominent locations in the Nigerian basement complex are known to harbor precious rocks and gemstones, in addition to the basement rocks being quarried for engineering construction. However, reserve estimates of these rocks and mineral deposits are largely unknown. Geophysical investigations have been undertaken at Olode-Gbayo village in Ibadan, southwestern, Nigeria. The primary objectives are to estimate overburden thickness and extend results to estimate probable gross basement tonnage and probable reserve of mineralized pegmatite in the basement rock. The Olode-Gbayo pegmatite has been fou

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28

Yu, Shu Qiang, Xu Dong Cheng, and Peng Ju Qin. "Scheme Comparison on Unsymmetrical Loading Tunnel Location near Tunnel Portal." Advanced Materials Research 346 (September 2011): 419–25. http://dx.doi.org/10.4028/www.scientific.net/amr.346.419.

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In the process of tunnel excavation, due to the complexity of geological and geomorphic conditions etc, in the given tunnel heading shape conditions, it is more important to determine the tunnel location near tunnel portal. The large-scale finite numerical simulation software ANSYS is adopted to analyze that stress and displacement of tunnel surrounding rock vary with unsymmetrical location, including burial depth, slope angle and thickness of overburden layer. The analysis results show that: Under the condition of reinforcement in advance, it is proper for the tunnel excavation to reduce buri

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Ganzha, O. A., Yu V. Kroshko, and T. V. Okholina. "STRUCTURAL AND LITHOLOGICAL CHARACTERISTICS OF ZIRCON-ILMENITE PLASTERS FROM THE MOKRI-YALY GROUP." Geochemistry and ore formation 44 (2023): 96–109. http://dx.doi.org/10.15407/gof.2023.44.096.

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The article presents the general geological characteristics and paleogeographic conditions of the formation of the Mokri- Yaly group of zircon-ilmenite placers. The studied region is characterized by a complex geological structure and polyfacies composition. The deposits are located in the area of Precambrian folding, that had been complicated by young tectonic shifts. The Tatarske, Manuilske and Zlatoustivske deposits belong to the most promising placers of this group. They represent alluvial and coastal-marine sandy deposits (Oligocene-Miocene). The main placer minerals are ilmenite (17.5—18

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Winarno, Tri, Rinal Khaidar Ali, and Wesly Rambu Langit. "Potential of Acid Mine Formation in PIT 3000, Toraja Block, PT Trubaindo Coal Mining Based on Geochemical and Mineralogical Characteristics Study of Overburden and Underburden Rocks." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 17, no. 1 (2020): 52–61. http://dx.doi.org/10.14710/presipitasi.v17i1.52-61.

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Coal mining in Indonesia is mostly applied by an open pit system which causes the rocks in the mining location to be exposed to the surface, so that it will be easy to react with air and water directly. The high content of sulphide minerals such as pyrite and marcasite in coal mining site, has the potential to produce mine acid water. Mine acid water causes environmental pollution and a threat to aquatic and soil ecosystems by increasing the concentration of other heavy metal ions. This study aims to identify the mineral content of the overburden rock layers to determine the type of sulfide mi

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Jung, Jung-Kyu, Nong-Moon Hwang, Young-Joon Park, and Young-Chang Joo. "Grain Growth Simulation of Damascene Interconnects: Effect of Overburden Thickness." Japanese Journal of Applied Physics 43, no. 6A (2004): 3346–52. http://dx.doi.org/10.1143/jjap.43.3346.

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Marshak, Stephen, and M. Scott Wilkerson. "Effect of overburden thickness on thrust belt geometry and development." Tectonics 11, no. 3 (1992): 560–66. http://dx.doi.org/10.1029/92tc00175.

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Chen, Xuejun, Ruijian Guo, Lingming Tang, and Xiaochen Zhang. "Study on Ground Collapse of Covered Karst Soil Caves by Sudden Drop of Groundwater." Advances in Civil Engineering 2021 (August 10, 2021): 1–12. http://dx.doi.org/10.1155/2021/7796401.

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In this study, the ellipsoidal soil cave with vertical collapses in the covering karst area is studied. Based on certain assumptions, the mechanical model of karst collapse caused by groundwater drop was established. Then, based on the negative pressure calculation formula of soil cave cavity according to Boyle–Mariotte’s law, the expression of the stability coefficient of the soil cave was proposed. Subsequently, the feasibility of the theoretical formula was verified. The calculation example analyzed the relationship of groundwater parameters and overburden thickness. The results show that w

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34

Dai, Xingwang, Yifan Chen, Yan Chen, et al. "Effect of Thickness and Compaction Degree of Overburden Soil on Radon Reduction for Uranium Tailings Reservoir." Science and Technology of Nuclear Installations 2021 (March 20, 2021): 1–8. http://dx.doi.org/10.1155/2021/9984939.

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The thickness and compaction degree of the overburden soil on the beach of the uranium tailings reservoir has an important influence on the radon reduction rate. A theoretical model of radon exhalation is established and an experimental device is designed. The main results are as follows. (1) The radon reduction rate increases with the increase of thickness. When the soil compaction degree is 85.5%, 90.2%, and 94.8%, the radon reduction efficiency increases significantly when the thickness increases from 5 cm to 10 cm, and when the soil thickness is over 10 cm, the increase of radon reduction

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Landrø, Martin, Bjarte Foseide, and Izzie Yi Liu. "Using diving waves for detecting shallow overburden gas layers." GEOPHYSICS 86, no. 4 (2021): B237—B247. http://dx.doi.org/10.1190/geo2020-0618.1.

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We have used simple time-shift analysis of diving waves to analyze shallow gas layers in a sedimentary overburden. By using simple equations for how the traveltime will change if a thin sand layer is charged by gas in a localized and constrained region, we show that such variations can be used to map and quantify the thickness of the gas layer. We use conventional 3D seismic data acquired close to a well where an unintended underground gas flow occurred in 1989. Raw seismic data are used as input, and time shifts are estimated for constant offsets for events that are interpreted as being predo

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Lu, Hai Feng, and Lin Wang. "Analysis on Water Abundance of Loose Aquifer and Quality Evaluation of Overburden Strata during Mining under Loose Aquifer." Advanced Materials Research 1006-1007 (August 2014): 73–77. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.73.

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The establishment of pillars is one of the most effective methods to keep mining safety under loose aquifer. Water abundance of bottom aquifer of loose strata,strength and structure of overburden strata are the main factors controlling type and height of coal pillar.Taking Xiyi area in Pansan coal mine as an example, hydrogeology characteristics of the bottom aquifer of quaternaty system and engineering geological properties of overburden strata of No.8 seam were analyzed.The characteristics of weathered rock was particularly analyzed.The results indicated that the type of the water abundance

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Emmanuel, A. G., Matthew T. Tsepav, and T. U. Yusuf. "Resistivity Prospecting for Groundwater Potential at the Proposed Ibrahim Badamasi Babangida University Teaching Hospital, Lapai, Niger State." Journal of Basics and Applied Sciences Research 1, no. 1 (2024): 49–57. http://dx.doi.org/10.33003/jobasr-2023-v1i1-22.

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Resistivity methods have been increasingly used for aquifer characterisation due to their high level of effectiveness. In this study, electrical resistivity survey was carried out at the Proposed Ibrahim Badamasi Babangida University Teaching Hospital Lapai Niger State Nigeria in order to study the groundwater potential with a view of determining the depth to the bedrock and thickness of the overburden protective capacity. Vertical Electrical Sounding (VES) using Schlumberger array was used to occupy thirty (30) VES stations using ABEM Terrameter (SAS 300) for the acquisition of apparent resis

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38

Abdulbariu, Ibrahim, Gloria Iyetunde Bello, Ibrahim Abdulmajid, et al. "Application of VES and VLF-EM methods for groundwater exploration through overburden thickness estimation of aquiferous zones within Kabawa Area, Lokoja Kogi State, Nigeria." Global Journal of Engineering and Technology Advances 20, no. 2 (2024): 199–219. https://doi.org/10.5281/zenodo.14921764.

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The area of study was surveyed to know more about the geology of the area which was characterized by Lokoja Formation, Patti Formation, and Agbaja Ironstone. The geoelectric and electromagnetic survey was carried out at Kabawa with the view to delineate the overburden thickness and aquiferous zone in the area. Geological field mapping were carried out which was accompanied with acquisition of sixteen (16) Vertical Electrical Sounding (VES) data, and ten (10) Very Low Frequency Electromagnetic (VLF-EM) data. The major rocks encountered are sandstones, claystone, and siltstones. Further findings

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Wang, De Chao, Yong Jie Yang, Kai Wang, and Nan Nan Zhao. "Numerical Simulation of Study on Rupture Development Rules of Overburden Strata in Repeated Mining." Advanced Materials Research 433-440 (January 2012): 1933–39. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.1933.

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Take 3 coal repeated mining of Luxi colliery as research background, overburden strata rupture development rules in repeated mining of thick coal seam were studied by using the methods of field measurement and numerical simulation. The results indicate that the height of overburden crack belt reduced along with the increase of goaf development time; the crack belt height of upper layer is 34.73m, the ratio of crack height and mining thickness is 15.1, the crack belt height of lower layer increased to 41.51m, but the increased trend declined, the ratio is only 13.84; the final crack height of n

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Zhao, Nan Nan, Yong Jie Yang, and Chang Qing Wang. "Study on Overburden Strata Rupture Development Height Rules in Repeated Mining of Thick Coal Seams." Applied Mechanics and Materials 170-173 (May 2012): 279–82. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.279.

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Take 3 coal repeated mining of Luxi colliery as research background, overburden strata rupture development rules in repeated mining of thick coal seam were studied by using the methods of field measurement. The results indicate that the height of overburden crack belt reduced along with the increase of goaf development time; the crack belt height of upper layer is 34.73m, the ratio of crack height and mining thickness is 15.1, the crack belt height of lower layer increased to 41.51m, but the increased trend declined, the ratio is only 12.14, the development height after up-layer was excavated

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Xu, Mengtang, Ke Li, and Youlin Xu. "Partitioning Control Mechanism and Engineering Practice of Rebuilding Bearing Arch in Surrounding Rock under High Ground Stress." Advances in Civil Engineering 2021 (January 19, 2021): 1–9. http://dx.doi.org/10.1155/2021/6667182.

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The mining of coal seam has a significant influence on the stability of the roadway near it, especially under the condition of high ground stress. To study the control mechanism of the surrounding rock under the influence of high ground stress, a general idea for the partition control of the rebuilding bearing arch (RBA) was proposed in this paper. Based on the basic mechanical performance test of the bearing arch, this paper built a mechanical model of the RBA based on Protodyakonov’s pressure arch theory, analyzed the influence of the strength of the bearing arch on the surrounding rock fail

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Munyikwa, K. "Cosmic ray contribution to environmental dose rates with varying overburden thickness." Ancient TL 18, no. 2 (2000): 27–34. https://doi.org/10.26034/la.atl.2000.319.

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The dynamic character of most natural depositional systems is such that the cosmic ray dose rate experienced by a buried luminescence dating sample is not static but changes with the fluctuations in the thickness of the overurden. The use of in situ (present day) cosmic ray contribution rates assumes instantaneous deposition of the sedimentary column overlying the sample followed by a period of non-deposition. Where the cosmic ray dose constitutes a major component of the total dose (which may be up to 60%), as is the case with many quartz aeolian dune sand systems, the assumption of instantan

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Kumar, Manish, John Hart, and Nikhil Prakash. "Application of Passive Seismic in Determining Overburden Thickness: North West Zambia." ASEG Extended Abstracts 2018, no. 1 (2018): 1–8. http://dx.doi.org/10.1071/aseg2018abt4_3d.

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Wang, Chaochao, Jialin Xu, Dayang Xuan, Xiaojun Chen, and Jian Li. "The Influence of Initial Saturation on the Slurry-Bled Water-Seepage Law of Isolated Overburden Grout Injection." Applied Sciences 14, no. 23 (2024): 11188. https://doi.org/10.3390/app142311188.

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The grout injection forms a compacted backfill in the separation chamber, and most of the grouting water seeps into the overburden pores. The initial saturation of overlying rock has been found to affect the seepage distribution of effluent in overlying rock. In the actual grouting process, the flow direction of grouting water in overlying rock and the initial saturation of overlying rock may affect whether the bled water will leak to the working face. In order to investigate the influence of initial saturation on the seepage law of isolated overburden grout injection, the present paper studie

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Gbadebo, A. M., A. O. Johnson-Kpade, and S. A. Ishola. "Environmental Risk Assessment of Subsurface Corrosion Severity as Aids to Pollution Level of Proliferated Petrol Stations in Abeokuta Metropolis Using Geophysical Technique." International Journal of Environment and Pollution Research 12, no. 3 (2024): 19–51. https://doi.org/10.37745/ijepr.13/vol12n31951.

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Twenty (20) Vertical Electrical Sounding (VES) Method of Geophysical Investigation was carried out in Abeokuta, South-West Nigeria adopting the Schlumberger configuration with maximum electrode separation (AB/2) of 100 m and minimum of 32m with a linear electrodes array (AMNB) in order to delineate the subsurface geologic layers and determine both their corrosion severity and overburden Protective capacity rating (OPCR) as aids to evaluating the vulnerability and pollution level in groundwater system of the study area. The acquired data were interpreted with WinRESIST software with identified

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Rejekiningrum, P., F. Ramadani, Y. Apriyana, and Haryono. "IDENTIFIKASI DAN KARAKTERISASI POTENSI AIR TANAH UNTUK PENGEMBANGAN IRIGASI SUPLEMENTER DI PABRIK GULA RENDENG DAN TRANGKIL JAWA TENGAH (IDENTIFICATION AND CHARACTERIZATION OF GROUND WATER POTENTIAL FOR DEVELOPING SUPLEMENTARY IRRIGATION IN ..." Agromet 19, no. 1 (2005): 49. http://dx.doi.org/10.29244/j.agromet.19.1.49-64.

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Micro sugar industry have some potential problem that needed serious interested, issues of global climate change have affected long drought period with the result that water availability for sugarcane very limited, and problem of land resources in specific location. To anticipate water scarcity in sugarcane plantation need to be optimalization water use through identification ground water potential to know depth and distribution groundwater resources used supplementary irrigation. This paper is attempt in optimalising water resources use through mapping of ground water to know ground water pot

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Lat, D. C., I. B. M. Jais, N. Ali, B. Baharom, N. Z. Mohd Yunus, and D. A. Mat Yusof. "Uplift and Settlement Prediction Model of Marine Clay Soil e Integrated with Polyurethane Foam." Open Engineering 9, no. 1 (2019): 481–89. http://dx.doi.org/10.1515/eng-2019-0054.

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AbstractPolyurethane (PU) foam is a lightweight material that can be used efficiently as a ground improvement method in solving excessive and differential settlement of soil foundation mainly for infrastructures such as road, highway and parking spaces. The ground improvement method is done by excavation and removal of soft soil at shallow depth and replacement with lightweight PU foam slab. This study is done to simulate the model of marine clay soil integrated with polyurethane foam using finite element method (FEM) PLAXIS 2D for prediction of settlement behavior and uplift effect due to pol

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Dong, Yu, Yucheng Huang, Jifang Du, and Fei Zhao. "Study on Overburden Stability and Development Height of Water Flowing Fractured Zone in Roadway Mining with Cemented Backfill." Shock and Vibration 2021 (March 18, 2021): 1–12. http://dx.doi.org/10.1155/2021/6661168.

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In order to explore the stability of overburden rock and the development height of water flowing fractured zone in roadway filling mining, based on the movement and deformation mechanism of overburden rock, the mechanical analysis of overburden stability and failure was carried out, and the mechanical model of main roof rock beam was established, and the ultimate span and limit deflection of rock beam fracture were deduced. Combined with the mechanical model of the main roof fractured rock, the basis for the judgment of overburden failure developing to fractured zone is given in this paper. Ta

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49

Abdulbariu Ibrahim, Bello Gloria Iyetunde, Abdulmajid Ibrahim, et al. "Application of VES and VLF-EM methods for groundwater exploration through overburden thickness estimation of aquiferous zones within Kabawa Area, Lokoja Kogi State, Nigeria." Global Journal of Engineering and Technology Advances 20, no. 2 (2024): 199–29. http://dx.doi.org/10.30574/gjeta.2024.20.2.0132.

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The area of study was surveyed to know more about the geology of the area which was characterized by Lokoja Formation, Patti Formation, and Agbaja Ironstone. The geoelectric and electromagnetic survey was carried out at Kabawa with the view to delineate the overburden thickness and aquiferous zone in the area. Geological field mapping were carried out which was accompanied with acquisition of sixteen (16) Vertical Electrical Sounding (VES) data, and ten (10) Very Low Frequency Electromagnetic (VLF-EM) data. The major rocks encountered are sandstones, claystone, and siltstones. Further findings

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Eka Saputra, Yudha Hadiyanto, Suyanto Suyanto, Fatmawati Fatmawati, and Suhaili Asmawi. "ANALISIS PEMBENTUKAN TANAH DARI BATUAN PENUTUP OVERBURDEN PADA AREA REKLAMASI PT BORNEO INDOBARA GUNA MENDUKUNG KEBERHASILAN REKLAMASI SECARA BERKELANJUTAN." EnviroScienteae 18, no. 3 (2022): 155. http://dx.doi.org/10.20527/es.v18i3.14820.

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This study aims to analyze the process of soil formation on overburden material in the reclamation area in 2013 (9 years), 2015 (7 years), and 2018 (4 years) to support the success of sustainable reclamation, and analyze the relationship between planting age, morphology and climate conditions in the study area that can affect the process of soil formation in the overburden. The research was conducted at a coal mining company located in Tanah Bumbu Regency, South Kalimantan Province. The research method used was descriptive quantitative. Data collection was done by making a test trench and taki

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