摘要
以霍州矿区曹村矿为工程背景,进行了高强高预应力让压锚杆支护试验,取得了较好的支护效果。结果表明:对于高应力碎胀围岩巷道,采用"高阻-让压支护"的方式是合理的,高强让压锚杆支护适用于高应力碎胀围岩巷道。
Taking Caocun Coal Mine in Huozhou Mining Area as engineering background,a test of high strength and high pre-stress yielding anchor bolts is conducted,and a better supporting effect is obtained.The conclusion is that the ＂high resistance-yielding support＂ is reasonable,and high strength-high pre-stress and yielding bolts are suitable for tunnels of broken expand rock roadway under high stress.
出处
《煤矿安全》
CAS
北大核心
2013年第8期79-81,共3页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2012CB724208)
国家自然科学基金煤炭联合基金资助项目(51174112)
关键词
碎胀
高强锚杆
让压支护
高阻-让压支护
broken expand
high strength bolts
yielding support
high resistance-yielding support
