摘要
叙述了引水隧洞炭质千枚岩粉末夹杂少量块体的大坍体中,采用跟管钻进打设大口径长管棚支护的工艺技术和钻进方法,最后提出几点经验和体会,工程取得了良好的效益,可推广该方案的应用。
The technology and drilling method of constructing large diameter and long pipe shed using pipe-follow drilling were described in large collapse bodyof diversion tunnel carbon-based phyllite powder mixing a small amount of block, some experiences were provided at last, the engineering gained good benefit, and it was possible to extend the application of this scheme.
出处
《山西建筑》
2009年第11期357-358,共2页
Shanxi Architecture
关键词
炭质千枚岩
松散渣体
跟管钻进
长大管棚
型钢支护体系
carbon-based phyllite, loose buffer, pipe-follow drilling, long and large pipe shed, steal support system
