摘要
隧道地下水影响施工安全,引发灾害,为减轻灾害的危害程度,须采取正确合理的措施.地处城区繁华地段的电缆隧道在施工中发生了透水险情,通过分析险情原因,采取合理的应急处置,喷射混凝土封闭掌子面,对周边地层采用双液浆回填注浆止水,对沉陷区回填商品混凝土,做好施工过程管理,消除险情,沉降监测结果表明采取应急措施后未出现预警情况,为隧道类似险情处置提供借鉴.
Abstract
Tunnel groundwater affects construction safety and causes disasters.To reduce the degree of harm caused by disasters,correct and reasonable measures must be taken.The cable tunnel located in the bustling urban area experienced a water seepage dan-ger during construction.By analyzing the causes of the danger and taking reasonable emergency measures,the tunnel face was sealed with shotcrete,and the surrounding strata were filled with double liquid slurry for water sealing.The subsidence area was filled with commercial concrete,and the construction process was well man-aged to eliminate the danger.The settlement monitoring results showed that no warning situation occurred after taking emergency measures,Provide reference for handling similar dangerous situa-tions in tunnels.
NETL
NSTL
维普
万方数据