摘要
地铁几乎都以浅埋隧道在城市密集群地表以下修建,岩层风化严重,特别在沿海地区和广州珠江三角洲地带,地下水发育,工程环境和地质环境复杂。以钻爆法和盾构工法掘进将十分困难,因此,如何掌握掌子面前方的地质情况,做好超前地质预报工作,指导隧道快速、安全、顺利掘进,意义重大。本文结合广州地铁建设的工程实践认识,阐述了浅埋隧道掘进施工超前地质预报的几种主要技术方法。
Almost all the metros are built by way of shallowly buried tunnel under the ground surface where cities are crowded together and the rock formation seriously effloresces. Especially in the coastal area and Guangzhou Pearl River Delta area, the groundwater growth, the engineering and geological environments are complicated. It will be very difficult to dig in by means of drilling and blasting method or shield work method. So, it is great significance that how to get information about the geological condition in front of the heading face through proper advance geological forecast to guide the tunneling going ahead speedily, safely, and smoothly. This article elaborates several major technical methods of advance geological forecast for the construction of shallowly buried tunnels in conjunction with the practical engineering and knowledge obtained in the building of Guangzhou metro.
出处
《广州建筑》
2007年第1期23-27,共5页
GUANGZHOU ARCHITECTURE
关键词
浅埋
隧道
超前
预报
技术
shallowly buried
tunnel
advance
forecast
technology
