摘要
地铁建设工程中常遇到各类市政管线,尤其是在车站附属结构施工时,如遇到部分管线无改移条件或改移难度较大时,需采取暗挖下穿管线的施工方案。施工过程中随着土体的开挖,极易造成上部土体沉降,进而危及到管线的的安全。基于沈阳地铁九号线北二路站1号风道暗挖下穿市政管线典型实例,从施工方案、风险保护及暗挖计算分析等方面对该风险点进行了研究,可为类似工程的风险保护及施工影响分析提供参考。
There exist various municipal pipelines during the construction of subways,especially that of accessary structures of subway stations.Buried excavation method under pipelines is normally adopted if partial of the pipelines is hard to be changed.Excavation during construction can easily trigger ground settlement which will significantly endanger the safety of pipelines.Based on the 1st wind flue of Shenyang metro line 9 Beier station underpass municipal pipelines,this paper mainly focuses on the evaluation of the construction scheme,risk protection and computational analysis of buried excavation,providing a good guidance for the risk protection and construction influence of similar projects.
作者
陈菊
CHEN Ju(Shenyang Metro Group Co.,Ltd.,Shenyang 110086,China)
出处
《北方交通》
2018年第4期150-153,157,共5页
Northern Communications
关键词
暗挖下穿
市政管线
保护措施
影响分析
Buried excavation
Municipal pipeline
Protection measures
Influence analysis
