工程地质学报2019，Vol.27Issue(1)：48-54,7.DOI:10.13544/j.cnki.jeg.2019-007
宁镇地区山前缓坡地层结构及其稳定性分析
THE STRATIGRAPHIC STRUCTURE AND STABILITY ANALYSIS IN GENTLE SLOPES OF PIEDMONTAT NINGZHEN AREA
摘要
Abstract
In recent years, due to the influence of extreme heavy rainfall weather, many medium-sized and largescale landslides had occurred on the gentle slopes of Ningzhen area. These landslides were mainly manifesting intermittent creep, large scale, and small slip distance, generally less than 30 m, which seriously threatens the safety of lives and property of residents, and causes huge economic losses and serious adverse social effects. In the paper, based on this new type of landslide geological hazard, the stratum structure and sliding mechanism of the landslide had been researched by using the cybernetics of rock mass structure and preferred plane theory. The results show that the landslide mainly occurred in the Piedmont gentle slope area, and there are special stratum structure and hydrogeological characteristics of the landslide body. The confined water would be easily produced in the slope body with heavy rainfall. Under the action of buoyancy of confined water, the burst and shear failure would produce mainly in the gentle slope, and the intermittent creep of the landslide grow with rainfall.关键词
宁镇地区/岩体结构控制论/优势面理论/山前缓坡地层结构/滑坡地质灾害Key words
Ningzhen Area/Cybernetics of rock-mass structure/Preferred plane theory/Stratigraphic structure in gentle slopes of mountains front/Landslide geological hazard分类
天文与地球科学引用本文复制引用
阎长虹,许宝田,吴澄宇,谈金忠,徐成华,郭书兰,刘羊..宁镇地区山前缓坡地层结构及其稳定性分析[J].工程地质学报,2019,27(1):48-54,7.基金项目
江苏省社会发展计划支撑项目 (BE2015675) （BE2015675）
江苏省地质矿产勘查局科技项目 (2015-KY-4) 资助 （2015-KY-4）
