富水断层破碎带巷道合理掘进与支护技术  

Reasonable excavation and support technology in water-rich fractured fault

作　　者：宗义江[1,2] 朱栋[1] 黄小忠[3] 唐铁军[3] ZONG Yijiang;ZHU Dong;HUANG Xiaozhong;TANG Tiejun(School of Traffic Engineering,Jiangsu Vocational Institute of Architectural Technology,Xuzhou,Jiangsu 221116,China;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;Gushan Mining Company,Magang(Group)Holding Co.,Ltd.,Maanshan,Anhui 243000,China)

机构地区：[1]江苏建筑职业技术学院交通工程学院,江苏徐州221116 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221116 [3]马钢(集团)控股有限公司姑山矿业公司,安徽马鞍山243003

出　　处：《江苏建筑职业技术学院学报》2021年第3期1-5,共5页Journal Of Jiangsu Vocational Institute of Architectural Technology

基　　金：江苏省自然科学基金项目(BK20160208);江苏省高等学校自然科学研究面上项目(17KJB4400)。

摘　　要：基于白象山铁矿-470m中段巷道的工程地质条件,综合采用矿井震波超前探测、瞬变电磁法和超前钻探等方法对F_(6)断层进行了超前探测,在此基础上针对性地提出了由调整巷道方位角、超前注浆、控制爆破、超前预加固与初次支护、二次支护与防渗加固组成的富水断层破碎带巷道合理掘进与支护技术.工程实践表明:所提出的掘进与支护技术保证了-470m中段巷道通过F6断层过程中的施工安全及围岩与支护结构的长期稳定,较好地解决了富水断层破碎带巷道的掘进与支护难题.According to the engineering geological conditions of-470 m middle lateral roadway in Baixiangshan iron mine,the advanced detection of F_(6) fault was carried out by the methods of mine seismic prediction,transient electromagnetic methods and advanced drilling.On this basis,the reasonable excavation and support schemes of roadway in water-rich fractured fault were put forward,which were composed of adjusting the azimuth angle of roadway,advanced grouting,controlled explosion,pre-reinforcement,primary support,secondary support and anti-seepage reinforcement.The engineering practice shows that the proposed excavation and support schemes ensured the construction safety of roadway through F6 fault and long-term stability of surrounding rock and support structure,and solved the excavation and support problems of roadway in water-rich fractured fault.

关 键 词：富水断层 超前探测 控制爆破 注浆 二次支护 

分 类 号：TD265[矿业工程—矿井建设]