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现代矿业 2019, Vol. 35 Issue (04) :171-174    DOI:
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新疆某矿回采巷道最佳锚杆布置参数研究
张连卫1,2,刘长武1,2,卢永虎1,2,周贤良1,2,冯波1,2*
1.水力学与山区河流开发保护国家重点实验室;2.四川大学水利水电学院
Study on the Optimal Anchor Bolt Layout Parameters in the Mining Roadway of a Mine in Xinjiang
Zhang Lianwei1,2,Liu Changwu1,2,Lu Yonghu1,2,Zhou Xianliang1,2,Feng Bo1,2 *
1.State Key Laboratory of Hydraulics and Mountain River Engineering;2.College of Water Resource and Hydropower,Sichuan University

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摘要 以新疆某矿Ⅰ1采区回采巷道为研究背景,基于FLAC有限差分软件,对比分析了回采巷道有支护和无支护时的塑性区范围、应力和位移变化规律;对顶板中点和右帮中点分别进行了竖向位移监测和水平位移监测,对比分析了不同锚杆布置参数条件下的围岩位移变化量;对应力集中系数和围岩位移进行了无量纲化处理,得到了综合评价指标。综合FLAC数值模拟结果和综合评价指标,得出了最优锚杆布置参数,可为现场回采巷道掘进和维护提供参考。
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张连卫
刘长武
卢永虎
周贤良
冯波
关键词回采巷道   布置参数   无量纲化   数值模拟   综合评价指标     
Abstract: Based on the study background of Ⅰ1 mining area of a mine in Xinjiang and FLAC finite difference software,the variation laws of plastic zone range,stress and displacement in the mining roadway with and without support are compared and analyzed;vertical displacement monitoring and horizontal displacement monitoring are carried out for the middle point of roof and right side respectively,the variation of surrounding rock displacement under different anchor bolt layout parameters is compared and analyzed;the stress concentration coefficient and surrounding rock displacement are treated with dimensionless processing and the comprehensive evaluation index is obtained.Based on the numerical simulation results of FLAC and the comprehensive evaluation index analysis,the optimal anchor bolt layout parameters are obtained,which provides a reference basis for tunneling and maintenance of the mining roadway.
KeywordsMining roadway   Layout parameters   Dimensionless processing   Numerical simulation   Comprehensive evaluation index     
引用本文:   
张连卫, 刘长武, 卢永虎, 周贤良, 冯波.新疆某矿回采巷道最佳锚杆布置参数研究[J]  现代矿业, 2019,V35(04): 171-174
ZHANG Lian-Wei, LIU Chang-Wu, LU Yong-Hu, ZHOU Xian-Liang, FENG Bo.Study on the Optimal Anchor Bolt Layout Parameters in the Mining Roadway of a Mine in Xinjiang[J]  Modern Mining, 2019,V35(04): 171-174
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