浅埋煤层链悬拼梁式液压支架应用研究

Study on the Application of Chain Cantilever Beam Hydraulic Support in Shallow Coal Seam

针对强制放顶开采情况下的顶板支护进行模拟研究,结果显示强制放顶条件下液压支架的支护强度降低明显。通过现场实践,采用链悬拼梁式液压支架配合使用强制放顶,在顶板出现周期来压时能够承受初次来压的冲击,有效满足工作面支撑要求。

The roof support under the condition of forced roof caving and conventional mining in wall mining system is simulated. The results show that the support strength of hydraulic support under forced roof caving is obviously reduced. Through the field practice, the use of chain cantilever beam type hydraulic support combined with the use of forced roof release, when the roof of the periodic pressure can run stably, effectively withstand the impact of the initial pressure, can effectively meet the requirements of working face support.