严重偏压隧道软弱围岩管棚施工

The serious bias tunnel weakly adjacent formation tube awning construction

介绍迳古潭偏压双连拱隧道洞口处理情况:采用注浆三排长管棚,注浆固结洞口松软土体和型钢支护及小导管注浆增强受压处自稳相结合的方法,顺利通过严重偏压双连拱隧道洞口地段。希望能给同行施工同类型工程提供借鉴。

Introducing the directly ancient pond is partial to press a double to connect the arch tunnel entrance to cave processing a circumstance： the adoption note to strach three lieutenants to take care of cote , noting to strached solid knot entrance to cave loose soft soil body and type steel protect and small pipe＇s noting syrup to build up be pressed place from steady combine together of method, pass smoothly severity be partial to to press a double connect arch tunnel entrance to cave district. Hope to give to go together to start construction the same kind type engineering provide to draw lessons from.