基于FLAC^(3D)的软岩煤巷支护优化研究  

Study on Supporting Optimization of Soft Rock Roadway Based on FLAC^(3D)

作　　者：王文才 邓连军 张培 尚东 张伟 陈阳 WANG Wen-cai1, DENG Lian-jun1, ZHANG Pei2, SHANG Dong3, ZHANG Wei1, CHEN Yang1(1. Mining Research Institute,Inner Mongolia University of Science and Technology, Baotou 014010, China; 2. Metal Materials Co., Ltd., Hebei Logistics Group, Shijiazhuang 050000, China; 3. Zhaluteqi Zahanur Coal Company, Tongliao 029100, Chin)

机构地区：[1]内蒙古科技大学矿业研究院,内蒙古包头014010 [2]河北物流集团金属材料有限公司,石家庄050000 [3]扎鲁特旗扎哈淖尔煤业有限公司,内蒙古通辽029100

出　　处：《煤炭技术》2018年第4期1-4,共4页Coal Technology

基　　金：内蒙古自治区研究生科研创新资助项目(S20151012708);内蒙古科技大学创新基金项目(2015QDL01)

摘　　要：针对红庙煤矿典型的软岩煤巷支护效果不佳的问题,提出了拟采用新型玻璃钢锚杆与预应力锚索联合支护的方案,并通过FLAC^(3D)数值模拟综合对比分析了2种支护方式的支护效果。研究表明,在2种支护条件下,巷道围岩的塑性区域均呈"风筝状"分布特征;采用联合支护时,巷道安全支护系数均大于1,且低安全系数区域范围较小,支护安全性较好,有利于提高支护效果。Aiming at the problem of supporting effect with typical soft rock roadway in Hongmiao coal mine, the combination supporting scheme of new FRP bolt with prestressed anchor cable is put forward, and the two kinds of supporting effect was has carried on the comprehensive comparison and analysis by FLAC3D numerical simulation. Studies have shown that under the condition of two kinds of support, the plastic area of the roadway surrounding rock were the kite shape distribution characteristics; When using combined support,security coefficient of roadway supporting is greater than 1 ,and low factor of safety area is lesser, supporting better security, and It is beneficial to improve the supporting effect, and can also provide reference for other similar projects.

关 键 词：软岩煤巷 联合支护 数值模拟 支护优化 

分 类 号：TD353[矿业工程—矿井建设]