摘要
巷道在掘进施工后,顶板岩层将悬露,在上覆岩层载荷作用下将弯曲下沉,当岩层下部表层应力达到其抗拉强度时,岩层开始发生断裂,断裂岩块在回转过程中形成拱式平衡,从顶板岩石的稳定性出发对榆家梁矿4-3煤的回采巷道的锚杆参数进行设计,作为多种设计方法的一种补充。
After roadway construct, the roof strata will be hanging open, the overlying strata will bend and goes down under load, when the surface stress of the rock bottom reaches its tensile strength, the rock began to fracture, fracture rock mass formed arch balance in the rotary process, this article from the stability of roof to design parameters of the bolt toYujialiang 4- 3 coal mine stoping roadway, as a supplement to variety of design methods.
出处
《西部探矿工程》
CAS
2010年第5期1-2,5,共3页
West-China Exploration Engineering
