北京地铁永安里车站北侧超浅埋暗挖双层平顶直墙过街通道,建于现况道路下,施工期间不得中断行车。采用暗挖综合技术初步解决平顶高边墙竖向支撑在受力状态下的替换,抑制浅覆土地表沉降和双层结构侧向洞门的受力转换等课题,并对监控量测结果进行了量化分析。 The north side of Beijing Yong’anli station is super shallowly buried and double-shelled double-walled flat-topped straight-through street crossing. It is built under existing road conditions and traffic may not be interrupted during construction. Adopting the technology of undercutting to solve the problems such as the replacement of the vertical support of the flat roof and the high side wall in the stressed state, the suppression of the settlement of the shallow overburden surface and the force conversion of the lateral doorway with double-deck structure, etc., Quantitative analysis.