采矿与安全工程学报2013,Vol.30Issue(2):262-266,5.
超前管棚注浆支护技术在极复杂断层带中的应用
Supporting technique with advanced pipe-shed grouting in extremely complicated faulting zone
摘要
Abstract
Based on the application cases of roadways successfully passing through the complicated fault zones by using supporting technique with advanced pipe-shed grouting, the technical problems of roadway support in passing through the extremely complicated fault zone were analyzed firstly in this paper. Meanwhile, the design parameters of advanced pipe-shed grouting were calculated, and the stress and deformation of surrounding rock in the fault zone under various supporting conditions were also analyzed by numerical simulation. Moreover, the in-situ deformation of roadway supported by advanced pipe-shed grouting was measured, and the successful application experiences of the pipe-shed grouting technique were summarized. The practice results show that the supporting technique with pipe-shed grouting can not only improve the integrity of surrounding rock and the supporting capacity, but also form a strong pre-support system. It can be well used as one of effective roadway support techniques in the complicated geological zones. However, some other measures, such as geophysical prospecting, effective in-situ monitoring, et al, are needed to improve the grouting quality and ensure the safety of passing through the complicated fault zones. The experiences in this paer can provide ref- erence to the design and construction of similar projects in complicated geological zones.关键词
管棚注浆/支护/巷道/断层带Key words
pipe-shed grouting/ support/ roadway/ fault zone分类
矿业与冶金引用本文复制引用
赵毅鑫,姜耀东,孟磊,王涛,刘华博..超前管棚注浆支护技术在极复杂断层带中的应用[J].采矿与安全工程学报,2013,30(2):262-266,5.基金项目
国家重点基础研究发展计划(973)项目(2010CB226804) (973)
国家自然科学基金项目(51174213) (51174213)
教育部新世纪优秀人才计划项目(NCET10-0775) (NCET10-0775)
中央高校基本科研业务专项资金项目(2009QM01) (2009QM01)
深部岩土力学与地下工程国家重点实验室开放课题项目(SKLGUEK1021) (SKLGUEK1021)