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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Causes and stability analysis of the landslide at Tianbao Reservoir in Jingning County, Gansu Province [PDF]
, 2023 On September 18, 2020, a landslide occurred on the left bank of Tianbao Reservoir in Tianbao Village, Sihe Town, Jingning County, Pingliang City, Gansu Province.
Guoying LI +4 more
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Shuitu Baochi Xuebao, 2017 为探讨草本植物根系对崩岗洪积扇土壤抗剪强度的影响，以巨菌草（Pennisetum sp.）和宽叶雀稗（Paspalum wettsteinii）为研究对象，采用WinRHIZO根系分析系统对根系特征进行定量分析，并采用原位剪切试验测定崩岗洪积扇各土层的抗剪强度。结果表明：（1）根系能够改善土壤的结构及水分状况。（2）2种草本植物根系均主要分布在0—5 cm土层，该层巨菌草根系各参数值是该草种根系均值的3.1~4.39倍，宽叶雀稗的则为2.23~2.57倍；随着土层深度的增加，巨菌草根系参数呈对数函数减小，
李 +6 more
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Shear characteristics and mesoscopic damage mechanism of long time soaking red sandstone under loading and unloading conditions [PDF]
The bank slope rock mass below the flood control restricted water level (145 m) in the Three Gorges Reservoir area has experienced long-term immersion in the process of reservoir water lifting and lowering; the water level changes lead to the rock mass ...
Binghao ZHOU +4 more
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Triggering mechanism and secondary landslide analyses of the “7•23” Shuicheng landslide in Guizhou [PDF]
On July 23, 2019, a catastrophic landslide occurred in Jichang Town, Shuicheng District, Liupanshui City, Guizhou Province, resulting in the tragic loss of 43 lives, with 9 people still missing, and causing direct economic losses estimated at ...
Bilong LIU +5 more
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Analysis on factors controlling shallow failures of the cut slopes and its prevention by bio-engineering measures: A case study of the cut slopes along the highway from Shuangcheng to Dajiali [PDF]
Understanding the primary and secondary relations of influencing factors is crucial for predicting deformation and controlling collapse in cutting slopes. Using a cutting slope along the Shuangcheng to Dalijia expressway in Gansu Province as the research
Changgen YAN +4 more
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Shear strength and crushing characteristics of calcareous sand in South China Sea under the influence of three factors [PDF]
Calcareous sand, a type of marine soil found in the South China Sea, is characterized by its porous nature, irregular particle shape, and susceptibility to breakage. However, few studies have examined the mechanical properties of calcareous sand from the
Hao YANG +3 more
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Shuitu Baochi Xuebao, 2021 为揭示冻融循环作用对棕壤抗剪强度的影响，采集沈阳地区5 cm和25 cm 2个深度原状棕壤（分别为H5和H25）为研究对象，通过室内冻融循环模拟和土壤直剪试验，研究冻融循环次数和土壤含水率对土壤抗剪强度的影响。结果表明：（1）土样含水率越高，初次冻融作用的破坏效果越强，1次冻融循环后，含水率为25%的H5和H25土样黏聚力分别下降50.00%和25.87%；含水率35%的H5和H25土样黏聚力分别下降75.61%和50.77%。15次冻融循环后，含水率10%的H5和H25土样黏聚力分别增加74.36 ...
朱龙祥 +5 more
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Shuitu Baochi Xuebao, 2018 为研究不同根系布置方式（方形、梅花形、环形）对草本植物根—土复合体抗剪强度影响，引入面积置换率的概念，解决了相同含根量或相同根数时无法同时满足方形、梅花形和环形布置的难题。在此基础上选取中国过渡带北侧山地土壤与莎草科植物开展植物根—土复合体抗剪强度试验研究，分析了相同布置形式下含根量对根—土复合体抗剪强度的影响、根系布置方式（方形、梅花形、环形）对草本植物根—土复合体抗剪强度增强作用以及抗剪强度指标变化规律。结果表明：根—土复合体试样的抗剪强度和黏聚力随着含根量的增大而逐渐增加；根 ...
王保辉, 朱连奇
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Shuitu Baochi Xuebao, 2016 通过野外调查与室内试验相结合的方法，对比分析不同土地利用方式土壤抗剪强度及其影响因子的关系，以期为研究区域不同土地利用方式水土流失评价提供一定科学依据。选取针阔混交林、灌木林、园地、坡耕地、荒地5种土地利用方式，观测土壤抗剪强度指标、容重、含水率、干密度、总孔隙度、土壤团聚体MWD值、粉/黏粒值，运用灰色关联法分析影响土壤抗剪强度的因素。结果表明：同一种土地利用方式土壤的黏聚力从坡上到坡下逐渐减小；不同土地利用方式土壤抗剪强度大小顺序为：坡耕地＞园地＞针阔混交林＞荒地＞灌木林 ...
李 想, 王 瑄, 盛世博, 陈志强
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