管棚注浆法过断层施工中喷孔分析  

The analysis on the spewing failure in the project taking lead pipe grouting to go through the fault

作　　者：姜耀东[1] 朱道建[1] 李琦[1] 赵毅鑫[1] 

机构地区：[1]中国矿业大学北京校区,北京100083

出　　处：《矿山压力与顶板管理》2005年第3期3-5,8,共4页Ground Pressure and Strata Control

摘　　要：东欢坨矿-500运输大巷施工中,遇特大断层,首次将管棚注浆法运用到深部巷道的过断层施工中,由于断层破碎带极不稳定,在钻孔过程中出现了喷孔塌孔现象。本文针对这一现象,采用有限差分法分析发生喷孔的原因,从力学角度和位移场两方面来综合进行考虑,给现场施工和设计提供指导。The DongHuanTuo mine transportation roadway meets the fault in the excavation. It is the first time to take the grouting to the tunnel at depth. It needs high technique and excavated method. Drilling arises spewing because of the unstable of rock. This article adopts the numerical simulation to analyse the causation. It is considered from the two aspects of mechanic and displacement, then it can direct the local work.

关 键 词：管棚注浆 断层 喷孔 数值模拟 FLAC^3D 

分 类 号：TD322[矿业工程—矿井建设]