摘要
分析了目前煤巷交岔点支护形式存在的弊端,提出了工字钢、锚索联合支护技术方案。按照技术要求施工后,增加了交岔点的有效断面,控制了围岩的强烈变形,具有一定的借鉴价值。
The existing shortanges of the coal drift junction support form are analyzed. The combined support technique project with joist steel and anchor is pointed out. After construction aeeording to the technique request, the junction section is increased, the violent transformation of wall recks is eotrolled. It has certainly beneficial value.
出处
《煤炭技术》
CAS
2008年第5期71-72,共2页
Coal Technology
关键词
煤巷交岔点
联合支护
工字钢
锚索
coal drift junction
combined support
joist steel
anchor
