建筑物拆除对下方轨道交通盾构隧道安全风险研究  

Research on the safety risk of the demolition of the building on the shield tunnel of the rail transit below

作　　者：高扬 GAO Yang(China Design Group Co.,Ltd.,Nanjing 210014,China)

机构地区：[1]华设设计集团股份有限公司,江苏南京210014

出　　处：《中国高新科技》2022年第4期103-105,共3页

摘　　要：文章以苏州轨道交通3号线盾构区间上方明德电脑房屋拆除工程为依托,分析研究上方建筑物拆除工程对下方盾构隧道的安全影响,并建立三维数值模型,模拟分析建筑物上部结构、基础结构拆除以及建筑垃圾堆载对地表位移、盾构隧道位移与内力的影响程度。结果表明,房屋拆除对盾构隧道结构的影响均在限值范围内,上部结构的拆除对隧道的影响较大,分区分部拆除以及控制地面建筑垃圾堆载可有效减少对下方盾构隧道的安全影响。This paper analyzes and researches the safety impact of the demolition project of the upper building on the shield tunnel below,and establishes a three-dimensional numerical model to simulate and analyze the influence of the superstructure of the building,the basic structure,and the pile of construction waste on the tunnel displacement of the ground and the tunnel,which is based on the Mingde computer house demolition project above the shield tunnel section of Suzhou Rail Transit Line 3.The results show that the impact of house demolition on the shield tunnel structure is within the limit.The demolition of the upper structure has a greater impact on the tunnel.The demolition of the sub-zones and the control of the dumping of ground construction waste can effectively reduce the safety impact on the shield tunnel below.

关 键 词：建筑物拆除 轨道交通 盾构隧道 数值分析 安全风险 

分 类 号：U455[建筑科学—桥梁与隧道工程]