Sophea Boeut

Characterization of Geotechnical Properties of Phnom Penh Bedrock: A Case Study in Chrouy Chongvar and Dangkao Districts

Sophea Boeut, Y. Fujii, P. Sieng, Sao Serey Kaing et autres

ABSTRACT: Bedrock layers support large load structures, while Phnom Penh faces limitations in mechanical properties. This research conducted rock testing on sandstone from Chroy Changvar and Dankao districts, both strongly developed zones in Phnom Penh. The fine-grain sandstones were compressed under varying …

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Prediction of mining-induced subsidence at Barapukuria longwall coal mine, Bangladesh

A.K.M. Badrul Alam, Y. Fujii, Shaolin Jahan Eidee, Sophea Boeut et autres

It is essential to predict the mining-induced subsidence for sustainable mine management. The maximum observed subsidence having a noticeable areal extent due to Northern Upper Panels (NUP) and Southern Lower Panels (SLP) at the Barapukuria longwall coal mine is 5.8 m and …

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Mining-induced subsidence prediction by Displacement Discontinuity Method: A case from Barapukuria longwall coal mine, Bangladesh

AKM Badrul Alam, Y. Fujii, Shaolin Jahan Eidee, Sophea Boeut et autres

Abstract It is essential to predict the mining-induced subsidence for sustainable mine management. The maximum observed subsidence having a noticeable areal extent due to Northern Upper Panels (NUP) and Southern Lower Panels (SLP) at the Barapukuria longwall coal mine is 5.8 m …

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Laboratory Investigation on the Permeability Variation of Fractured Inada Granite by Multiple Transient Axial Stress Disturbances

Sophea Boeut, Y. Fujii, Junichi Kodama, Daisuke Fukuda et autres

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Stability Analysis of Slopes in Aruwakkalu Limestone Mine During Rain: A Finite Element Approach

Amirthan Thirukumaran, Lahiru Dananjaya, Tharaka Dilshan, Anjula B. N. Dassanayake et autres

Water in the forms of rain, snowmelt and groundwater is identified to be the major factor influencing the reduction of the stability of the slopes. The increasing trend of annual rainfall has been a major challenge to meet the production requirement in …

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Variation in Permeability of Rocks due to Transient Disturbances in Axial Stress or Pore Pressure

Sophea Boeut

Large earthquakes can lead to persistent variations in the groundwater level in the near field. This would be due to the persistent variations in the permeability of the rock mass by permanent change in the strain through fault movement. These persistent variations …

Variation in Permeability of Rocks due to Transient Disturbances in Axial Stress or Pore Pressure [an abstract of dissertation and a summary of dissertation review]

Sophea Boeut

軸応力や間隙水圧の過渡的な擾乱による岩石の浸透率変化 [論文内容及び審査の要旨]

Sophea Boeut

Effects of transient axial stress or pore pressure disturbances on the permeability of Shikotsu welded tuff

Sophea Boeut, Y. Fujii, Junichi Kodama, Daisuke Fukuda et autres

A persistent increase in the permeability of a rock mass caused by transient stress disturbances, when they exist, can explain the change in groundwater level as well as the petroleum production by seismic waves in the far-field. However, it has yet to …

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Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure

Sophea Boeut, Teppei Oshima, Y. Fujii, Junichi Kodama et autres

A persistent increase in the permeability of rock mass caused by transient stress disturbances, if present, could explain the variation in the groundwater level in far fields, increase in petroleum production caused by earthquakes or artificial vibrations in enhanced oil recovery, and …

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Transient Stress Disturbances Induced Change in Permeability of Kushiro Cretaceous Sandstone

Sophea Boeut

These phenomena might be induced by change in transient stress disturbances from these etc. in paperback the change in permeability of Kushiro Cretaceous sandstone by transient stress disturbances which change might be potentially used for the enhanced methane gas recovery at Kushiro …

Impact on permeability due to axial stress disturbances for cretaceous sandy shale

Sophea Boeut, Teppie Oshima, Y. Fujii, Junichi Kodama et autres

Seismic waves generated from earthquakes and artificial surface vibration might alter the water level in the wells and oil or gas production. These transient stress disturbances prospectively caused the permeability change due to new pathway occurring or existing pathway being cleared. The …