古近系半成岩地铁车站深埋隧道矿山法施工变形规律  

Deformation law of mining method construction for deep buried tunnel of Paleogene semi-diagenetic subway station

作　　者：王炳华 王中华 高涛[2] 廖鹏[2] 陈维 潘洪义 WANG Binghua;WANG Zhonghua;GAO Tao;LIAO Peng;CHEN Wei;PAN Hongyi(Nanning Rail Transit Co.,Ltd.,Nanning 530029,China;Beijing Urban Construction Exploration&Surveying Design Research Institute Co.,Ltd.,Beijing 100101,China)

机构地区：[1]南宁轨道交通集团有限责任公司,广西南宁530029 [2]北京城建勘测设计研究院有限责任公司,北京100101

出　　处：《测绘通报》2020年第9期12-17,共6页Bulletin of Surveying and Mapping

摘　　要：本文以南宁轨道交通3号线青秀山站为例,研究了古近系半成岩地铁车站深埋隧道矿山法施工变形规律及施工方法,设计了专项监测方案,对矿山法大断面施工的各项监测数据进行分析研究,重点分析了CD法和三台阶法等不同工法的初支结构变形情况。研究表明,做好地下水的控制可以保障深埋隧道安全开挖和控制周边环境变形;CD法和三台阶法在古近系半成岩粉砂岩、泥质粉砂岩,局部粉(细)砂岩等地层中均可以满足初支结构变形要求;CD法和三台阶法均可以选择的情况下,三台阶法更为经济。Taking Qingxiushan station of Nanning rail transit line 3 as an example,this paper studies the deformation law and construction method of the deep tunnel construction of the Paleogene semi diagenetic subway station,designs a special monitoring scheme,analyzes and studies the monitoring data of the large section construction of the mining method,and focuses on the deformation of the primary and secondary structures of different construction methods,such as CD method and three step method.The research shows that the control of groundwater can ensure the safe excavation of deep tunnel and control the deformation of surrounding environment.the CD method and three step method can meet the requirements of deformation of primary support structure in Paleogene semi-diagenetic siltstone,argillaceous siltstone,local siltstone and other strata;the three step method is more economical when both CD method and three step method can be selected.

关 键 词：古近系 半成岩 地铁车站 深埋隧道 矿山法 变形规律 

分 类 号：P258[天文地球—测绘科学与技术]