底煤巷大跨度交岔点全锚支护技术应用

Appliation of All Bolt Support in Large Uverhead Intersection of Floor Roadway

近年来 ,锚杆支护技术以其主动支护、及时支护、初始支护强度高的特点 ,在矿井支护中得到了迅速的推广和应用 ,但在底煤巷的大跨度交岔点中 ,全锚支护的应用尚不普及。通过在常村矿底煤巷与切眼的大跨度交岔点处的全锚支护试验 ,拓宽了锚杆的使用范围 。

In recent years,bolt support was spreaded and applied rapidly in coal support because of active support,support in time and initial support,but all bolt support can′t be extensively spread in large overhead intersection of floor roadway.All bolt support was tested in large overhead intersection of floor roadway and room of changcun coal mine,widen service range of bolt support,and provide basis for construction of chamber with a large section and large onerhead intersection.