Results 1 to 10 of about 526 (187)
Shuitu Baochi Xuebao, 2021 滑坡是黄土丘陵沟壑区常见的重力侵蚀，降雨是黄土边坡失稳的主要诱因。为了研究持续降雨条件下黄土边坡的稳定性，采用人工降雨装置进行室外现场试验，测量土体含水率、密度、滑坡剪切带位置以及裂缝的发育等情况，并使用FLAC3D软件计算模拟持续降雨条件下裂缝发育对边坡稳定性的影响。结果表明：随着降雨历时的增加，黄土边坡土体的含水率逐渐增大，土体强度降低，而且自重增大，坡面冲蚀沟逐渐发育，坡脚出现滑塌，坡顶出现拉裂缝，裂缝加剧了降雨的集中入渗，使得裂缝周边土体强度快速降低，最终导致在降雨历时至308.8 h时发生滑坡，
马蓓青 +5 more
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Shuitu Baochi Xuebao, 2007 针对弃渣场边坡容易发生细沟侵蚀的问题,采集弃渣场坡面不同坡位的弃渣样品,对弃渣容重、含水量、饱和导水率、饱和含水量、砂粒含量、碎石含量等物理指标进行测定;与此同时,还对各点的样品进行直剪试验,并以此对弃渣场边坡稳定性特征进行分析。结果表明:新形成弃渣场坡面由上而下,其土体内摩擦角ψ逐渐增大,而土体粘滞系数C的变化与弃渣场坡面形成过程关系密切,一般而言,坡面的上部和下部粘滞系数C较小,说明弃渣场坡面上部土体的稳定性较中下部弱;对土体其他物理性质指标与土体的内摩擦角ψ、粘滞系数C进行相关性分析 ...
刘建伟 +3 more
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Shuitu Baochi Xuebao, 2017 ：以重庆市城镇建设活动形成的典型工程堆积体为研究对象，对工程堆积体边坡物理力学特性和入渗特征进行了研究，同时确定工程堆积体边坡的危险滑动面及安全系数。在工程堆积体边坡上、中、下设置采样点，采集土壤样品进行土壤物理力学性质分析，采用野外双环入渗法进行入渗过程研究，运用GEO-SLOPE软件分析工程堆积体边坡稳定性。结果表明：（1）工程堆积体粒度分布不均匀，且中坡位>下坡位。（2）工程堆积体饱和含水量随坡位下降呈逐渐增加趋势；入渗率随时间变化呈快速减小、缓慢减小、稳定入渗3个阶段，2 m、2 a和4 ...
丁文斌 +3 more
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Shuitu Baochi Xuebao, 2000 对高速公路边坡的调查结果表明，高速公路边坡的稳定性随坡度、坡长的增大而减小，随植物覆盖度的增大而加强，有护坡工程的边坡稳定性大于没有护坡工程的边坡；边坡的稳定性并随土壤硬度的变化而变化。在调查的基础上提出了增强边坡稳定性的措施。
杨喜田 董惠英
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Shuitu Baochi Xuebao目的为探究在边坡生态修复技术中生物结皮对土壤团聚体分布及稳定性特征的影响机制。方法以植被混凝土边坡不同生物结皮覆盖（藻结皮、混生结皮、藓结皮）土壤为研究对象，以无结皮覆盖土壤（CK）为对照，采用Le Bissonnais法分别对其不同土层（0~2、2~5 cm）土壤团聚体分布、团聚体稳定性及土壤理化属性特征进行研究。结果1）与CK相比，藻结皮、混生结皮和藓结皮覆盖土壤>0.25 mm团聚体含量（R0.25）分别增加12.53%、21.97%、30.20%（0~2 cm）和20.11%、32.00%、
董悦 +8 more
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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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Slope safety, stability evaluation, and protective measures based on machine learning [PDF]
, 2022 In recent years, the slope instability has brought immeasurable costs to production and life of human. As a result, it is essential to correctly understand, analyze, and design the slope reasonably, and implement appropriate protective measures to ...
Chong-chong QI +2 more
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Research on mining plan of non-working high-level coal seam in open-pit mine with near-horizontal composite coal seam [PDF]
, 2023 In the extraction of subhorizontal multiple coal seams using open-pit mining in China, the problem of coal seam in the high wall is commonly existed, but studies usually focus on the lower coal seam mining problem only.
Bo CAO +5 more
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Analysis of failure mode and deformation evolution characteristics of slopes under the influence of highwall mining [PDF]
, 2023 The slope has the typical deformation failure and instability characteristics under the interaction of natural and human factors which has been given a lot of attention in geotechnical and mining engineering.
Chuangye WANG +4 more
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Dizhen xuebao, 2022 基于颗粒流理论研究土质边坡动力稳定性及其滑动过程是近年来滑坡研究的一个新热点。在野外调查和室内试验的基础上，通过标定土体细观参数、模型建立、动力输入、动态监测等过程，利用PFC2D程序模拟了西吉县兴平乡堡湾村下马达子滑坡的失稳破坏运动过程，得到了该滑坡的破坏运动机理。得到如下结论：① 下马达子滑坡的失稳机制是在地震作用下斜坡前缘牵引、后缘推挤，使得坡肩受拉发生破坏，失稳后坡肩位置较大的速度和位移是地震滑坡破坏力强、致灾范围大的主要原因；② 黄土地震滑坡的滑坡后壁相对平缓，这是区别于重力滑坡的重要特征之一；
Weilong Jia +5 more
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