摘要
针对屯兰矿2#煤层巷造为Ⅳ类复合顶板的特殊地质条件，顶板来压大且易破碎，采用组合锚杆＋锚索的全锚支护设计方案，满足了生产需要。
The coal tunncl roof is belong to Ⅳ compound roof in Tunlan fiels 2# coal sean1, bear a trcmendous weight and breakable. In order to meet the needs of production that adopts bolt and sol f bolt support.
出处
《山西焦煤科技》
1999年第3期9-13,共5页
Shanxi Coking Coal Science & Technology
关键词
锚杆
锚索
支护
复合顶板
Bolt Soft bolt Support Compound roof
