贵阳城市轨道交通3号线一期工程盾构工法适应性研究

Study on Adaptability of Shield Construction Method for Guiyang Urban Rail Transit Line No.3 Phase Ⅰ Project

以贵阳市拟建的轨道交通3号线一期工程为例,对线路沿线地质条件、水文条件,特别是岩溶情况进行前瞻性分析,从工程费用、工期影响、盾构机选取等多种方面进行综合分析,推荐贵阳市城市轨道交通3号线一期工程部分区间工程采用复合式土压平衡盾构机。目前,贵阳轨道交通3号线已拟采用盾构法施工。

Taking the first phase project of Guiyang Urban Rail Transit Line No. 3 as an example,the geological and hydrological conditions along the line,especially the karst conditions,are prospectively analyzed,and the comprehensive analysis is made from the aspects of project cost,time limit and shield machine selection,etc. The first phase project department of Guiyang Urban Rail Transit Line No. 3 is recommended. The composite earth pressure balance shield is used in the inter district project. At present,the Guiyang Urban Rail Transit line No. 3 has been constructed by shield method.