摘要
结合曲江矿区高地应力、复合顶板等复杂地质条件,研究深井条件下煤巷锚索采用小孔径、施加高预应力的结构形式和施工工艺。工程实践表明,该技术是解决深井高应力软岩巷道、大断面交岔点等支护难题的有效途径。
Combined with the complicated geological conditions of high stress and compound roof, the authors have excogitated the construction technique by using small aperture in cable anchor and exerting high prestress, which has been an effective approach to solving the supporting problems of high stress in soft rock roadway and the crossing point of large bore.
出处
《江西煤炭科技》
2008年第4期30-31,共2页
Jiangxi Coal Science & Technology
关键词
深井煤巷
复合顶板
锚索
roadway of deep well
compound roof
cable anchor
