Results 51 to 60 of about 319 (144)
Research progress on the application and development of the material point method in dynamic simulation of geological hazards [PDF]
Numerical simulation is commonly used to address large deformation geological disasters such as collapses, landslides, and debris flows. Accurately and efficiently simulating these issues has always been a challenge.
Bin LI +4 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
doaj
Analysis on kinematic behavior of potential large-scale rockfall in the Tanbu limestone open-pit mine in Guangzhou City, Guangdong Province [PDF]
The Tanbu limestone mine in Guangzhou has been in operation for over 30 years, resulting in the formation of a series of terraced slopes, with the highest reaching approximately 195 m.
Jianjun ZHAO
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Shuitu Baochi Xuebao, 2019 高速公路建设等活动产生了大量的裸露岩质边坡。随着环保观念的逐渐普及和增强，人们对生态环境保护的要求越来越高，岩质边坡植被护坡技术已成为了工程建设技术的一个重要组成部分，并已取得了很多研究成果。首先分析了岩质边坡植被恢复的特点，然后从植被护坡技术应用、植物的选择和配置、生态基材的配比和特性、植被护坡机制和植被恢复效果评价5个方面对中国岩质边坡植被护坡技术的研究进行总结和概述，在此基础上，从特殊生境条件下的高陡岩质边坡植被护坡技术研发、岩质坡面-基材-根系的相互作用机理及整体力学稳定性 ...
张家明 +4 more
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Shuitu Baochi Xuebao, 2021 为了系统性研究灌木植物根系的固土力学效应，探讨土体对根系的摩阻特性，以4种不同土壤粒径（原级配，1.0~2.0，0.5~1.0，
郭欢 +4 more
doaj
Mechanism and control of slope instability slip induced by overburden migration in side coal mining [PDF]
Due to multiple factors, open pit mining will form a large amount of trapped coal on the side wall. With the end of internal discharge and reclamation, these trapped resources will be permanently lost, resulting in great waste.
Chuangye WANG +3 more
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Dizhen xuebao基于西吉、海原和固原的野外调查资料建立了典型斜坡场地概化数值模型，通过选择合理动力人工边界，探究地震动频谱特性对黄土斜坡地震响应的影响。结果表明：① 斜坡加速度受地震动输入频率影响较大，在输入不同频率地震动时，不同监测点加速度峰值放大系数呈现不同变化趋势，同时，速度和位移受地震动输入频率影响较大，各监测点的峰值速度和峰值位移随频率的变化趋势一致；② 低频是诱发斜坡失稳的关键频段，高频振动下斜坡不易发生失稳破坏，斜坡对低频地震波存在放大作用，对高频地震波具有一定的“滤波”作用；③ 随着高程的增加 ...
Xuechen Sun +5 more
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Research on risk early warning for rainfall-induced shallow landslides in Guangdong Province based on a dynamic slope instability model [PDF]
In light of the accuracy and model construction challenges in county-level meteorological risk early warning for geo-hazards, and considering the prominent characteristics that these geo-hazards mainly occur on the shallow surface of residual slopes, the
Pingxin WEI +5 more
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Experimental and theoretical analyses of three-dimensional surface crack propagation [PDF]
, 2017 2011-2012 > Academic research: refereed > Publication in refereed journalVersion of ...
Han, ZC +4 more
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Strength degradation of soft interlayer under dry-wet cycles based on 3D printing technology [PDF]
Soft interlayers are critical geological formations that significantly impact the stability of slopes in water and hydropower engineering projects. This study investigated the shear mechanical characteristics and failure mechanism of the soft interlayer ...
Hao LIU, Lei LU, Wen ZHANG
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