软岩深埋地铁车站初支拱盖法施工WBS-RBS-AHP风险评估

WBS-RBS-AHP Risk Assessment of Deep-Buried Soft Rock Subway Station Construction with Primary Support Arch-Cover Method

摘要: 文章依托重庆轨道交通九号线一期工程红岩村车站，采用WBS-RBS风险耦合识别技术对红岩村车站初支拱盖法施工进行了风险识别，得到了施工过程中的23个风险源，而后采用AHP分析法对识别出的风险源进行风险评估，找出风险权重较大的风险源，为针对性的风险控制和深入研究指明了方向，同时也证明了该方法在工程实际中的有效性，能够为地铁车站初支拱盖法施工提供科学、实用的理论指导。

Abstract: This paper is based on Hongyancun Station of Chongqing Rail Transit Line 9 phase I project. WBS-RBS risk identification technology is utilized to identify the risks of the construction of Hongyancun Station with Primary Support Arch-Cover Method, and 23 risk sources during the construction process are obtained. Then, Analytic Hierarchy Process (AHP) is utilized to perform risk assessment on the identified risk sources, to find out the risk sources with larger weight. It points out the direction for specific risk-controlling and in-depth research. And the effectiveness of this method in engineering practice is also proved, which can provide scientific and practical theoretical guidance for construction of subway station with Primary Support Arch-Cover Method.