TBM空推步进左右线导台分叉处施工技术优化

Construction Technology Optimization of TBM Non-excavation Advancing Guide at Bifurcation of Left and Right Line

以深圳市轨道交通6号线民乐停车场出入线TBM空推步进导台施工为例,在混凝土导台施工方案基础上优化导台施工方案,解决小断面长距离空推步进工期长、工序复杂等一系列难题,采用数值模拟对优化后导台施工方案合理性进行验证,取得良好的经济与工期效益。

Based on the construction of TBM non-excavation advancing guide of Shenzhen transportationsubway line 6′s Minle parking access,an improved construction technology of the concrete non-excavation advancing guide is acquired and verified by numerical simulation.The improved construction technology fixed a series of problems,such as long construction period and complex process,when non-excavation advancing in condition of small surface and long distance,which makes profits both in economy and construction period.