Results 41 to 50 of about 1,067 (154)
Spatial structure characteristics and formation mechanism of the ancient Deda landslide elucidated using the microtremor survey method in Sichuan Province, China [PDF]
Objective The topography and geological structure of the eastern Qinghai-Tibet Plateau are highly complex. High development density and intricate spatial structures of large ancient landslides in alpine canyon areas, such as those in the Jinsha River ...
CHEN Wenkai +7 more
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Shuitu Baochi Xuebao, 2023 为探究花岗岩红壤细沟形态特殊变化的原因,解释土体构型影响细沟形态发育的机理。设计单一红土层(H)、单一砂土层(S)、上红下砂层状土层(HS)3种土体构型、不同径流量(低径流量3 L/min、高径流量6 L/min)和不同坡度(中坡20°、陡坡40°)的室内模拟细沟冲刷试验。结果表明:H处理下,细沟形态更多向"V"形和"U"形发育;S处理下,细沟沟道发育过程中短暂形成上窄下宽的深宽梯形断面后,完全崩塌;HS处理下,细沟形态能发育为梯形断面,且能继续扩大发育。与H和S相比,HS陡坡(40 ...
刘子轩 +4 more
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Shuitu Baochi Xuebao, 2023 坡面细沟形态特征的定量分析是研究细沟侵蚀的基础。通过设计3种降雨强度(30,60,90 mm/h)和5种坡度(2°,5°,10°,15°,20°)组合条件下的人工降雨模拟试验,定量研究饱和紫色土坡面降雨强度及坡度对细沟形态及其空间变化特征的影响。结果表明:饱和紫色土坡面细沟平均宽度、深度和细沟宽深比分别为3.44~9.64 cm、1.01~8.14 cm和1.18~3.87,细沟宽度和深度沿坡面从上至下整体均表现出先增大后减小的趋势,细沟宽深比沿坡面表现为上坡＜中坡＜下坡的变化特征。整体来看 ...
麻力文 +5 more
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Diversity of State Transformation in an Era of Globalization:Lessons from Singapore’s Experience [PDF]
, 2013 从全球化的推动性效应出发，先行研究强调，随着经济开放性的日益提高，“治理型相互依赖”是各国政企关系的发展趋势。正是这种特殊的关系，增强了国家面对全球化挑战的转型能力。新加坡常被认为是证实此假说的典型案例。然而，通过对新加坡政治经济的深入挖掘，本文认为，新加坡并不存在这种“治理型相互依赖”的政企关系。主要原因有三: ( 1) 国家长期对外部威胁的感知; ( 2) 政府与企业利益缺乏统一性; ( 3) 私有企业长期性弱小。通过对新加坡案例的再反思，本文进一步指出，在全球化时代下 ...
Chen, Chao, Li, Xiang
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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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Study on the stability evaluation method of fuzzy mathematical landslide improved by entropy weight method [PDF]
Landslide are one of the most common types of geological disasters in China, posing a serious threat to the safety of people's lives and properties due to their propensity and frequency.
Chen XUE +5 more
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Geological hazard risk assessment and suggestions for risk control in Chaya County, eastern Xizang [PDF]
Chaya County in eastern Xizang was selected as the research area for the susceptibility assessment of geological disasters. Seven evaluation indexes, including elevation, slope grade, slope form, slope direction, slope structure, stratum, and distance ...
Hai HUANG +5 more
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Shuitu Baochi Xuebao, 2002 在坡面侵蚀细沟的形成演化过程中，径流流路上跌坎的形成是至关重要的一环。跌坎形成标志着细沟开始在坡面上形成，同时也标志着坡面侵蚀方式开始由面蚀转为沟蚀。在综述了有关跌坎形成机理的已有研究成果基础上，根据坡面径流滚波运动理论从理论上探讨了跌坎的形成机理。在坡面滚波相互叠加的地方．水深的局部增加导致径流侵蚀切应力的剧增。在水流纵向上的切应力激增点处，强烈的径流侵蚀作用导致了跌坎的形成。
鲁克新 李占斌
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Rapid modeling and 3D matching of GB InSAR landslide emergency monitoring: Method and application [PDF]
Traditional GB InSAR monitoring relies on surface control coordinates, which can be limiting. To quickly generate a digital elevation model (DEM) at the landslide disaster site, match it with radar deformation images, and achieve three-dimensional ...
Aimin YAO +4 more
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Shuitu Baochi Xuebao, 1995 对象山滑坡需动变形机理进行了详细分析，将岩坡划分成为由软弱夹层构成的３个滑带，对岩坡的３种岩土材料进行了大量的岩石物理力学试验，取得了较为合理的材料参数，并采用弹塑发生 有限元法的变形机理进行了数值分析。结果表明：将地质勘察和数值有机地结合，可以准确地确定滑坡的变形机理，对滑坡的稳定性处理具有重要的指导意义。
崔中兴 王瑞骏
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