地铁区间隧道台阶法与中隔墙加台阶法施工及其转换

Construction and Transformation between Bench Method and CRD Method for Subway Works

采用浅埋暗挖法施工的某区间隧道,标准段采用台阶法施工,人防段采用中隔墙加台阶(CRD)法施工。介绍了台阶法与CRD法施工的流程、工序、控制要点,以及由台阶法向CRD法转换的施工方法。

The method for close dug section of shallowburied tunnel is mainly adopted for standard segment of section tunnel,while the CRD method are mainly used for air defense works.In this paper,two methods are introduced respectively,it is suggested that the construction of standard segment and that of air defense tunnel works shall be transformed between bench method and CRD method.