泡沫混凝土预留卸压间隙对巷道稳定性的影响  

Influences of Foam Concrete with Softened Layer on Stability of Roadway

作　　者：侯琳[1] 

机构地区：[1]河南建筑职业技术学院,郑州450000

出　　处：《煤炭技术》2017年第6期91-93,共3页Coal Technology

摘　　要：预留间隙卸压允许围岩发生一定变形,可实现巷道围岩的支护。将泡沫混凝土材料填充于巷道预留卸压间隙中作为柔性层,可为巷道卸压支护提供新的研究方法。通过建立数值模拟模型,对泡沫混凝土充填预留卸压间隙巷道进行力学特性研究,并对卸压支护原理进行分析,数值模拟了泡沫混凝土充填预留卸压间隙的巷道稳定性。The clearance between the reserved space and the surrounding rock can be deformed, which can realize the support of the surrounding rock. In order to provide a new research method for the roadway pressure relief, the foam concrete is filled with the flexible layer which is used as the flexible layer in the roadway. Through the establishment of numerical simulation model of foam concrete filling for unloading mechanical properties of roadway clearance, the pressure relief support principle was analyzed. The stability of the roadway with the clearance of pressure relief in the filling of foam concrete was simulated.

关 键 词：巷道 卸压支护 卸压间隙 泡沫混凝土 

分 类 号：TD322.4[矿业工程—矿井建设]