【摘要】 介绍煤巷锚杆支护的机理 ,支护参数的确定 ,以及锚杆支护在乡镇煤矿工作面巷道中的试验情况 ,锚杆支护适用于地方煤矿受采动影响的巷道 ,可代替型钢金属支架、木支架等。具有工艺简单、支护及时、承载力大的特点 ,是一种有效的支护新手段。更多还原

【Abstract】 This paper introduces mechanism of bolt support in roadway determining parameter of support and test situation of bolt support in roadway workface of villages and towns coal mine,bolt support apply mining shaking roadway of villages and towns coal mine,steel and wood support can be replaced.There are feature of simple craft support in time and big carrying capacity,it is a new method of suppoft.更多还原