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对西安地铁1号线西咸车辆段出入段线双连拱浅埋暗挖隧道地层沉降影响因素进行了分析,研究了超前小导管注浆及径向注浆加固在控制地层沉降中的作用,表明在特殊区段采取土体局部加固措施是必要的。
The influencing factors of formation settlement of double-arch shallow-buried tunnel during the entry and exit of Xi’an depot in Xi’an Metro Line 1 are analyzed. The effect of advance small duct grouting and radial grouting reinforcement in controlling the settlement of strata is studied. It shows that it is necessary to adopt local reinforcement measures in special sections.