山西煤矿区滑坡特征及分类

发布时间：2018-06-08 00:58

本文选题：滑坡 + 滑坡分类　；参考：《煤田地质与勘探》2017年03期

【摘要】：滑坡分类研究一直是滑坡研究的基础和重点。通过对山西煤矿区滑坡灾害的工程实践和大量的调查统计分析,根据滑坡地层结构、岩性特征、诱发机制及运动特征等因素将山西煤矿区滑坡归结为5种类型:顺基岩面推移—滑动型黄土滑坡;蠕滑—挤出型黄土滑坡;水浸溜滑型黄土滑坡;煤层自燃倾覆—拉裂滑移型岩质滑坡;受节理控制的蠕滑—张裂型岩质滑坡。研究结果发现:黄土滑坡滑带土一般为松散土层,岩质滑坡的滑面为软弱结构面(多为泥岩薄层)或煤线;除溜滑型黄土滑坡滑动速度较快外,其他为低速滑坡,其典型特点是历时长,滑距短,致灾范围小,但滑坡推力大,破坏力强,往往造成更大损失。该研究进一步细化了滑坡分类的内容,其成果可对山西矿区及类似滑坡地质灾害的防治提供指导。
[Abstract]:Landslide classification research has been the basis and focus of landslide research. Based on the engineering practice of landslide disaster in Shanxi coal mine area and a large number of investigations and statistics, according to the structure and lithologic characteristics of landslide, The induced mechanism and motion characteristics of the landslide in Shanxi coal mine area are divided into five types: the bedded sliding loess landslide along the bedrock surface, the creep slide extruding loess landslide, the water leaching slide slip loess landslide; Coal seam spontaneous combustion capsizing-tension slip type rock landslide; joint-controlled creep-tension type rock landslide. The results show that the soil in the loess landslide slide zone is generally loose soil layer, and the slip surface of the rock landslide is weak structural plane (mostly mudstone thin layer) or coal line, except the slip loess landslide sliding speed is fast, the others are low speed landslide, Its typical characteristics are long calendar, short slip distance, small range of disasters, but the landslide has large thrust and strong destructive power, which often results in greater losses. The research further refines the content of landslide classification, and the results can provide guidance for the prevention and treatment of geological hazards of Shanxi mining area and similar landslide.
【作者单位】：太原理工大学地球科学与工程系;北方时代建筑勘察设计研究院有限公司;
【分类号】：P642.22

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