深部地压控制技术与采场优化支护研究  

Research on Deep Ground Pressure Control Technology and Stope Optimization Support

作　　者：张瑞明 魏丁一 杜翠凤[2] 徐海月 常宝孟 王远 Zhang Ruiming;Wei Dingyi;Du Cuifeng;Xu Haiyue;Chang Baomeng;Wang Yuan(Shanxi Engineering Vocational College,Taiyuan 030009,China;School of Civil and Resources Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]山西工程职业学院,山西太原030009 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《金属矿山》2020年第6期156-160,共5页Metal Mine

基　　金：国家重点研发计划项目(编号:2018YFC0604605)。

摘　　要：为了合理有效地对深部地压进行控制,选取某矿作为研究对象,通过现场调研现有的主要支护手段,建立了分级支护模型,对巷道支护进行了设计。研究结果表明:U型钢拱架、喷射混凝土、锚网和锚杆为目前的主要支护方式;在稳定性一般或较好的采场,单位面积所需锚杆为0.67根/m^2,锚杆网度可适当调大为1.5~2.0 m×1.5~2.0 m;若围岩过于破碎时,锚杆网度应严格按设计施工;根据巷道矿岩的工程质量,然后结合巷道使用时间、暴露面积及影响程度,得到支护等级指标RQ值,根据RQ值将巷道支护分成5级,最终确定各采场支护形式及支护参数,为深部安全高效开采提供科学依据。In order to control the deep ground pressure reasonably and effectively,a certain mine is selected as the re⁃search object,and the existing main support methods are investigated on site to establish a classification support model and a roadway classification support design.The results show that U-shaped steel arch frames,sprayed concrete,anchor nets and bolts are the main support methods at present.The required bolt per unit area of the mining area with average or better stabili⁃ty is 0.67 pieces/m2,and the bolt mesh size could be adjusted to 1.5~2.0 m×1.5~2.0 m.If the surrounding rock is too bro⁃ken,the bolt mesh should be constructed strictly according to the design.According to the engineering quality of the roadway ore and rock,and then combined with the roadway use time,exposed area and influence degree,the support level index val⁃ue RQ is obtained.According to the RQ value,the roadway support is divided into 5 levels,and the support form and param⁃eters of each stope are finally determined.This will provide a scientific basis for safe and efficient mining in the deep mining.

关 键 词：地压控制 锚杆支护 影响因素 分级支护 支护参数 

分 类 号：TD353[矿业工程—矿井建设]