软破岩体底部结构支护模拟试验研究  

Simulation Experimental Study on Bottom Structure Support of Soft Broken Rock

作　　者：刘海昭 LIU Hai-zhao(Western Gold Yili Co.,Ltd.,Yining 835100,China)

机构地区：[1]西部黄金伊犁有限责任公司

出　　处：《湖南有色金属》2020年第1期1-4,14,共5页Hunan Nonferrous Metals

摘　　要：针对软破岩体采场底部结构在开采过程中遇到的地压显现问题,利用Midas和Flac3D建立相似模拟模型,并计算顶底板位移和塑性区体积大小,对比分析多种支护方案,发现管缝锚杆+喷浆支护的位移控制效果最好,树脂锚杆在综合控制巷道稳定性方面效果最好,但基本上不能控制巷道位移。In order to solve the problem of the ground pressure in the mining process of the bottom structure of soft broken rock mass,this paper establishes a similar simulation model by using Midas and Flac3 D,and calculates the displacement of the top floor and the volume of the plastic area.Through comparison and analysis of various support schemes,it is found that the displacement control effect of pipe joint bolt-grouting support is the best,and resin bolt is the best in comprehensive control of roadway stability,but the displacement of roadway can not be controlled basically.

关 键 词：软破岩体 采场支护 底部结构 相似模拟 

分 类 号：TD350.1[矿业工程—矿井建设]