新疆阜康丁家湾煤矿粉土湿陷性的工程地质特性分析

摘要

土的湿陷性即湿陷变形,是指土在一定压力作用下,下沉稳定后,受水浸湿所产生的附加下沉,其特点是速率快、变形大、危害大.新疆地处干旱、半干旱地区,湿陷性土分布很广,在湿陷性土地基上,屡屡发生建筑物湿陷的工程事故.根据对某煤矿工业场地内的粉土湿陷性的工程地质分析,提出了防治岩土工程中湿陷性粉土的切实可行的建议.%Collapsibility of soil is soaking deformation, means under certain impact of pressure, soil sinks and then become stable; it will additionally sink after the soil is soaked by water. Its characteristics are the speed is rapid, the deformation is great, and the damage is serious. Xinjiang is at arid area and semiarid. Distribution range of collapsible soil is widely. On collapsible soil base, many engineering accident of construction saturated yielding. Based on the analysis of silt collapsible engineering geology in certain coal mine, the article put forward some suggestions on preventing collapsible silt in geotechnical engineering.