基于深部监测的滑坡动态特征分析  

ANALYSIS ON KINETIC CHARACTERISTICS OF LANDSLIDE BY MEANS OF MONITORING IN DEEP GROUND

作　　者：丁瑜[1,2] 王全才[3] 石书云[4] 崔明 

机构地区：[1]三峡大学土木与建筑学院,宜昌443002 [2]三峡大学三峡库区地质灾害教育部重点实验室,宜昌443002 [3]中国科学院成都山地灾害与环境研究所,成都610041 [4]中国水电顾问集团西北勘测设计研究院,西安710065 [5]青海省第四地质矿产勘查院,西宁810029

出　　处：《工程地质学报》2011年第2期284-288,共5页Journal of Engineering Geology

基　　金：国家自然科学基金项目(41002100);中国科学院知识创新项目(KZCX2-YW-332)资助

摘　　要：滑坡监测的目的是获取滑坡变形特征和演变过程。对于一些重要场地,判断其是否存在潜在滑坡时,深部位移监测是最直接和最有成效一种手段。通过在某厂房后坡两个监测断面设置5个深部位移监测孔,根据监测结果对滑坡体的范围、整体活动性、滑动方向、滑动面进行以及滑坡类型进行探讨和分析。监测结果表明:厂房后坡具有牵引式滑动特征,活动性明显;坡体位移速度较大,雨季有加速变形的特征;坡体前缘滑面已局部贯通,中、后部滑带也处于蠕动变形状态。The purpose of landslide monitoring is to obtain the characteristics and evolutionary process of landslides.For some important sites,monitoring in deep ground is the most direct and effective means to determine whether or not potential landslide exists,in this paper,five boreholes for underground monitoring are set on two profiles of a slope behind a hydropower plant.Slide area,slope activity,sliding direction,sliding surface and types of the landslide are discussed and analyzed.The monitoring results reveal that it is a retrogressive landslide with obvious activity.The displacement velocity of the landslide is large and it has accelerated in the rainy seasons.Sliding surface in the slope front has been locally penetrated.It alsohas creep deformation in the upslope.

关 键 词：滑坡 深部位移监测 位移 动态特征 

分 类 号：P642.22[天文地球—工程地质学]