摘要
文章结合近年来我国发生较为频繁的松散土体型地面塌陷展开研究,在明确其概念的基础上,分析造成此类地陷的内因和外因。分析结果表明,渗流造成松散土体中形成大孔隙骨架结构并以临界稳定状态潜于地下,在地面超载、振动及降水等外界干扰作用下造成临界稳定状态突然失稳,形成地表塌陷。
Based on the analysis of land collapses in incompact soil which occurred frequently in recent years in China, the concept of land collapse in incompact soil is put forward, and its internal cause and external cause are analyzed. The following conclusions are got from the research, infiltration flow causes macro pore overhead structure in incompact soil, which exists under the ground in a critical sta- ble condition; and external effect such as overload on the land, vibration and rainfall can cause a sud- den collapse of the land surface.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第1期63-67,共5页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(41002117)
关键词
地质灾害
地面塌陷
临界稳定状态
渗流
geographical disaster land collapse critical stable condition infiltration flow
