富水卵石土隧道泥石流塌方处理技术

Rich-Water Pebble Soil Tunnel Landslide Treatment Technology

在富水卵石土隧道施工过程中,因强降雨影响,会导致隧道涌水量突然增大,形成集中大出水点,从而造成隧道掌子面滑塌.本文通过对富水卵石土隧道施工塌方后实例的成功处理,针对大江大河周边施工隧道时塌方处理的技术难题,总结出在富水卵石土隧道泥石流塌方处理的施工工艺,为今后类似地质条件下隧道施工积累宝贵经验.

In the process of constructing rich water pebble soil tunnels,the heavy rainfall will result in a sudden increase of water-gushed yield of tunnel,thus forming a concentrated water outlet and causing the tunnel working face to slip. Based on the successful processing examples to the debris flow collapse of tunnel construction,this paper summarizes the construction of the debris flow collapse in the rich-water pebble soil tunnels,especially aiming at the technical problems of the settlement of the tunnels around the Dajiang River,so as to accumulate precious experience for tunnel construction under similar geological conditions.