摘要
长春地铁一号线某盾构区间在富水的砂砾地层掘进,由于地层中的空洞等缺陷,加大了地面沉降超限的风险,为有效控制地面沉降,采用地面超前注浆的技术措施,使盾构顺利通过风险地段,取得了良好的施工效果。
A certain shield section of Changchun Metro Line 1 was excavated in a water-rich gravel stratum. Due to defects such as voids in the strata, the risk of land subsidence was increased. In order to effectively control land subsidence, the ground was used to advance grouting technical measures, the shield has been successfully passed through the risk area, and good construction results have been obtained.
出处
《辽宁省交通高等专科学校学报》
2019年第2期19-21,共3页
Journal of Liaoning Provincial College of Communications
关键词
地铁盾构区间
富水砂砾地层
空洞
超前注浆
metro shield section
water rich gravel formation
hollow
forward sprinkling
