泥水平衡盾构通过基岩孤石施工技术  

Technology of slurry balance shield crossing bedrock and boulder

作　　者：王公忠[1,2,3] 张惠聚[2] 张建峰[3] 

机构地区：[1]河南工程学院安全工程学院,河南郑州451191 [2]河南工程学院煤矿灾害预防控制实验室河南省高校重点实验室培育基地,河南郑州451191 [3]武汉理工大学资源与环境工程学院,湖北武汉430070

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第3期350-353,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家"十二五"科技支撑计划重点资助项目(2011BAB05B03)

摘　　要：为解决台山核电站取水隧洞泥水平衡盾构施工中分布的坚硬花岗岩孤石群,基岩孤石段,采用"物探先行、钻探验证、查明分布、控制爆破、限定块度、带压进仓、仓后打捞"的方法.通过钻爆船定位控制技术、钻孔定位控制技术,控制爆破技术,成功将基岩、孤石爆破至限定的块度,通过袖阀管后退式分段注浆加固地层稳定了孤石.顺利通过了花岗岩孤石群,基岩孤石段,取得了较好技术经济效果.Slurry balance shield is used for the nuclear power plant water intake tunnel construction, in order to solve the bedrock and boulder section, this paper established the methods of ＇physical prospecting antecedence, drilling verification, finding out distribution, controlling blast, limiting lumpiness, binning with pressure, salvaging behind bin＇. The bedrock and boulder were blasted below limiting lumpiness by using the rock drill barge positioning-controlling technology, the bore positioning-controlling technology and by means of blast. The layer was reinforced and boulder was stabilized via the sleeve valve pipe back-type sub-grouting technology. Successfully oassed the bedrock and boulder section and obtained Significantlv economic effects.

关 键 词：海底隧道 控制爆破 带压进仓 仓后打捞 泥水平衡盾构 注浆加固 基岩孤石 钻孔定位 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]