| 再论岩溶塌陷的形成机制 |
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| 引用本文： | 李前银.再论岩溶塌陷的形成机制[J].中国地质灾害与防治学报,2009,20(3):52-55. |
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| 作者姓名： | 李前银 |
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| 作者单位： | 四川省地矿局,四川成都610081 |
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| 摘 要： | 20世纪70年代以来,不少学者对岩溶塌陷的形成机制进行了努力探索,一些单位开展了大量野外和室内实验,获得了宝贵数据,取得了重大进展。在此基础上形成了目前比较公认的＂潜蚀论＂和＂真空吸蚀论＂。作者通过对已有研究成果的总结,特别是对支撑＂潜蚀论＂和＂真空吸蚀论＂的理论基础和实验数据的分析,结合在贵州六盘水地区岩溶塌陷的长期调查成果,认为研究岩溶塌陷,不能离开覆盖土层的物理力学性质,土层物理力学性质不一,变形破坏方式也不一样。岩溶塌陷的形成发生,往往是多种作用的共同结果,同时提出了＂溯源潜蚀＂和＂土体流变＂的观点。
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| 关 键 词： | 岩溶塌陷 形成机制 溯源潜蚀 流变 潜蚀论 真空吸蚀论 |
Further study on formation mechanism of karst collaps |
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| LI Qian-yin.Further study on formation mechanism of karst collaps[J].The Chinese Journal of Geological Hazard and Control,2009,20(3):52-55. |
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| Authors: | LI Qian-yin |
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| Institution: | LI Qian-yin (Bureau of Geology and Minerals Exploration of Sichuan Province, Chengdu 610081, China) |
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| Abstract: | Through study on "suffosion erosion theory" and "vacuum suction erosion theory" which are generally known at the moment and on-the-spot investigation on the karst collapse in a small typical area, the author thought that discussion about formation mechanism of karst collapse should consider the physical and mechanical properties of the overburden soil. The soil having different physical and mechanical properties has a different deformation and failure pattern. On the basis the author put forward a mew kind of theory on karst collapse, namely, "upstream erosion" and "soil rheology". |
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| Keywords: | Kast collapse formation mechanism headwerd suffosion erosion rheology suffosion erosion theory vacuum suction erosion theory |
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