摘要
针对国内最大跨度的联拱隧道在软弱断层的施工工况,提出了以超前大管棚预注浆、分次施作初期支护、监控量测、合理的二次衬砌施工技术,有效地遏制了围岩变形,达到了安全通过断层的目的,并对类似工程有积极的借鉴意义。
Aiming at the construction situation of largest span tunnel cross soft fault fraction in our nation, it puts forward that it inhibits the fender deformation effectively and gets the purpose of across the fault fraction safely of the construction technique of bassoon shed pre-cast-inplace, graded carrying out the origin supporting, supervision and measurement, and the reasonable second liner, and this has active reference meaning to similar projects.
出处
《山西建筑》
2008年第8期312-314,共3页
Shanxi Architecture
关键词
大跨度隧道
软弱断层
大管棚
分次支护
large span tunnel, soft fault fraction, bassoon shed, graded supporting
