焦姗, 龙建辉, 于慧丽. 山西煤矿区滑坡特征及分类[J]. 煤田地质与勘探, 2017, 45(3): 101-106. DOI: 10.3969/j.issn.1001-1986.2017.03.019
引用本文: 焦姗, 龙建辉, 于慧丽. 山西煤矿区滑坡特征及分类[J]. 煤田地质与勘探, 2017, 45(3): 101-106. DOI: 10.3969/j.issn.1001-1986.2017.03.019
JIAO Shan, LONG Jianhui, YU Huili. Characteristic and classification of landslide in Shanxi coal mine area[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(3): 101-106. DOI: 10.3969/j.issn.1001-1986.2017.03.019
Citation: JIAO Shan, LONG Jianhui, YU Huili. Characteristic and classification of landslide in Shanxi coal mine area[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(3): 101-106. DOI: 10.3969/j.issn.1001-1986.2017.03.019

山西煤矿区滑坡特征及分类

Characteristic and classification of landslide in Shanxi coal mine area

  • 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 is the foundation and emphasis of landslide research. Through a plenty of survey analysis and investigations of engineering practice of landslide geological disasters in Shanxi coal mining area, we summarize five types of landslides according to stratigraphic, lithological, motion features and inducing mechanism:over-sliding loess landslides along the bedrock surface; creep-extrusion loess landslides; water invasion slippery loess landslides; coal seam to spontaneous overturning-tension crack sliding rock landslide; Creep-extensional faulting rock landslides subject to joints control. According to the research, results are as follows:loess in sliding zone is commonly loose soil, the sliding surface of rocky landslide is weak structural plane (thin mudstone) or coal; except for the skid type loess landslide, others are low-speed landslides, of which typical characteristic is that it lasted long and has a short total displacement and a small effect range, but the landslide thrust is strong and destructive, which may cause more damage. The study refines the content of landslide classification, which can be a prevention guide to the similar landslide geological disaster in Shanxi mining area.

     

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