摘要
为解决梧桐庄矿超长软顶工作面顶板控制难、支护阻力不足等开采问题,以该矿182605工作面为研究背景,利用地质资料调查、理论计算和数值模拟等方法确定了液压支架主要技术参数,并对该开采条件下的工作面液压支架进行合理选型。结果表明,支架支护强度应不小于0.823 MPa,初撑力确定为5232 kN,工作阻力达到6400 kN能够满足安全回采,最终选用ZZ6400/19/42D型四柱掩护式液压支架。通过现场实践效果,该支架对软顶和大倾角问题具有较好的控制作用,防倒防滑性能及采高范围增大,经济效益良好。
In order to solve the mining problems such as difficult roof control and insufficient support resistance in the super-long soft roof working face of Wutongzhuang Mine,taking the 182605 working face of the mine as the research background,the main technical parameters of the hydraulic support were determined by means of geological data investigation,theoretical calculation and numerical simulation,and the hydraulic support of the working face under the mining conditions was reasonably selected.The results show that the support strength of the support should not be less than 0.823 MPa,the initial support force is determined to be 5232 kN,and the working resistance reaches 6400 kN to meet the safe mining.Finally,the ZZ6400/19/42D four-column shield hydraulic support is selected.Through the field practice effect,the support has a good control effect on the soft roof and large dip angle,the anti-fall and anti-skid performance and the mining height range increase,and the economic benefit is good.
作者
郭超
李丽
李新旺
王汉青
Guo Chao;Li Li;Li Xinwang;Wang Hanqing(Wutongzhuang Mine Jizhong Energy Fengfeng Group,Handan 056200,China;School of Civil Engineering,Hebei University of Engineering,Handan 056038,China;School of Mining Geomatics Engineering,Hebei University of Engineering,Handan 056038,China;Coal Resources Development and Construcyion Application Technology Research Center of Universities in Hebei Province,Hebei University of Engineering,Handan 056038,China)
出处
《煤炭与化工》
CAS
2023年第5期71-74,共4页
Coal and Chemical Industry
基金
河北省自然科学基金资助项目(E2020402075,E2022402014)。
关键词
理论计算
数值模拟
液压支架
支护强度
初撑力
工作阻力
theoretical calculation
numerical simulation
hydraulic support
support strength
initial supporting force
working resistance
