【摘要】 以徐州地铁1号线穿越鲲鹏路至火车东站站段浅埋暗挖工程为背景,在超浅埋和复杂的地质、环境条件下,选用合理计算模型,对管棚预支护下的隧道施工过程进行数值计算,并将计算结果与实测结果进行对比分析,结果表明数值计算结果可靠。而后对管棚预支护结构参数进行分析,研究布置角度、钢管直径、管棚间距、注浆厚度对隧道开挖中地层沉降的影响,旨在为复杂地质条件下浅埋隧道施工及管棚预支护优化设计提供依据。更多还原

【Abstract】 In this study,the numerical calculation was compared with field measurement to verify the reliability based on the Xuzhou metro line 1project,which runs through the section of shallow Kunpeng road for background.The ground settlement in the process of tunnel excavation was analyzed in different influencing factors of pipe roof which include layout,pipe diameter,grouting thickness and spacing.It provides a reference for the shallow tunnel construction and design of pipe roof under complicated geological conditions.更多还原