地铁盾构隧道下穿对铁路股道影响的探讨

Discussion on the Impact of the Subway Underpass the Railway

文中借助于某市地铁线路一区间隧道下穿该市火车站国铁站场的工程实例,剖析了盾构法施工造成地面沉降的主要原因,以及盾构隧道下穿国铁线路股道可能出现的风险因素及影响,提出了相应的防护措施。通过工程实例提出了隧道下穿铁路股道的控制标准,并证明了盾构法施工对于控制地面沉降的突出作用。

Based on an engineering project of the numeral area subway track of some city, the subway underpass this city＇ s railway station, this paper analyzes the main reasons of shield construction which cause the surface subsidence and the construction measures of preventing, the risk factor and influence of the shield tunneling under the railway, puts some methods to solve these questions. Through the project example, corresponding control standards is expounded, and proves the main function of shield construction to control the surface subsidence.