Results 11 to 20 of about 2,893 (150)
Integrated assessment of soil cutting slope stability using fuzzy mathematics and numerical simulation [PDF]
, 2023 The complexity and uncertainty of the factors affecting the stability of artificial slope in loess regions pose challenges for achieving objective and accurate assessments through a single method. To investigate the stability of the artificial soil slope
Chongjing WANG, Guowei LIU, Long ZHANG
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Shuitu Baochi Xuebao, 2023 研究根-土复合体土-水特征曲线与抗剪强度的关系,可为紫色土埂坎根-土复合体强化机理的揭示与埂坎稳定性的维持提供科学依据。选取三峡库区典型紫色土坡耕地埂坎草本植物根—土复合体为研究对象,结合Hyprop2土壤水分特征曲线测量仪、滤纸法与直剪试验,拟合土-水特征曲线,揭示基质吸力对根-土复合体抗剪强度的影响。结果表明:(1)根-土复合体土-水特征曲线明显分为边界效应区、过渡区与非饱和残余区,3种常用模型(B-C、VG、F-X)中F-X模型拟合该曲线效果最好,根-土复合体饱和含水率、进气吸力 ...
郑文娇 +4 more
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Mechanical behavior and stability control of regenerated roof in long wall stratified mining of thick steeply dipping coal seam [PDF]
, 2023 This study focused on the stability control of roof in long wall stratified mining of large dip angle thick coal seam. Taking Panbei Coal Mine in Huainan as an example, the effect mechanism of water content, compression ratio and grain size grading on ...
Ke YANG +3 more
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Shuitu Baochi Xuebao, 2020 为了揭示东北黑土区季节性冻融循环作用和土壤性质对土壤可蚀性的影响，采集黑龙江省宾县典型薄层黑土区（BX）和克山县典型厚层黑土区（KS）0—20 cm的耕层土壤，通过室内冻融循环模拟和土壤直剪试验，分析了冻融作用和土壤性质对土壤抗剪强度的影响。结果表明：（1）经历1次冻融作用后BX和KS 2种供试土壤抗剪强度分别减小3.9%和9.2%，二者黏聚力分别减小15.2%和29.4%，内摩擦角分别减小1.4%和3.6%。经历7次冻融作用后，BX和KS 2种供试土壤抗剪强度分别减小9.1%和15.1 ...
左小锋 +6 more
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Numerical study on the mechanism of shear performance degradation of thawing glacial debris [PDF]
The sensitivity of the ice-water transition in glacial debris to temperature rise has become a significant concern. In recent years, there has been an increase in reports of ice avalanches caused by the thawing of glacial debris, which can be attributed ...
Da HUANG +4 more
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Prediction method of surface subsidence due to underground coal gasification under thermal coupling [PDF]
, 2023 Underground coal gasification (UCG) is an essential part of the low-carbon green coal mining technology system. The implementation of the “double carbon” goal of the coal industry has brought excellent development opportunities for UCG. However, UCG will
Chao TANG +6 more
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Shuitu Baochi Xuebao, 2023 为研究自然边坡其强度特性随含水率的变化规律。通过设计不同体积含水率(20%,27%,35%,40%,45%)和2种含根量(RAR=0.1%,0.3%)的重塑土进行不固结不排水三轴试验,以研究含水率对土体破坏方式、抗剪强度和初始切线模量的影响。结果表明:(1)试样破坏模式多为剪切变形和剪胀变形,在含水率为20%,27%时,出现明显剪切贯穿面破裂带,其余含水率下表现为剪胀变形;(2)含水率对根土复合体抗剪强度主要体现在黏聚力上,含水率从20%升至45%时,2种含根量的根土复合体黏聚力分别降低67%,72 ...
骆丕昭 +5 more
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Modification method of borehole shear mechanical parameter characterization and its experimental study [PDF]
The borehole shear test is an important method to quickly measure the shear strength of rock in the field, but its application is limited due to its large measurement error.
Bingyuan CUI +8 more
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Construction Experiment and Mechanical Modeling of Soil-Concrete Composite Slope Protection Technology [PDF]
, 2023 [Objective] The construction and mechanical model of soil-concrete composite slope protection technology were analyzed in order to provide scientific reference for the implementation of slope modification engineering in soil-rock mountain area. [Methods]
Gao Zhaoliang +5 more
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Realization of Pan Jiazheng′s extremum principle with optimization methods [PDF]
, 2017 2007-2008 > Academic research: refereed > Publication in refereed journalVersion of ...
Cheng, YM, Wang, JA, Zhao, ZH
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