摘要
强风化砂岩暴露于空气中,遇水极易软化崩解,软化崩解后成细砂状,通过对主楼部位局部开挖实探及钎探,强风化砂岩含极丰富的地下水,开挖容易塌方。通过实际工程案例来探讨深基坑开挖项目中强风化砂岩地质层土方开挖施工技术,对于我国的土方开挖施工技术的发展有着重要的意义。
Once highly weathered sandstone is exposed to air and contacts with water,it would get softened and disintegrate into sand-like gravels.According to the practical exploration and rod sounding during the excavation for part of the main building,it was found that highly weathered sandstone contains abundant underground water,and it is likely to collapse if excavating it,it is significant to investigate excavation technology for deep foundation excavation where the earth is highly weathered.
出处
《时代农机》
2015年第5期133-134,共2页
Times Agricultural Machinery
关键词
深基坑
强风化砂岩
土方开挖
二次降水
施工技术
deep foundation pit
highly weathered sandstone
earth excavation
secondary precipitation
construction technology