摘要
根据锚杆支护围岩强度强化理论 ,系统布置锚杆 ,配以必要的加强支护可以改变围岩的应力状态 ,提高岩体的力学参数 ,从而能提高围岩的承载能力。提出了综放沿空留窄煤柱掘巷围岩控制原理和锚杆支护方案 ,并应用于工程实践 。
In the principle of rockstrata strength strengthened in bolt support,through systems arrangement of bolt and strengthening support,state of rockstate pressure can be changed,mechanics parameter of rock is improved and bearing capacity of rock can elso be improved.This paper raises out rock control principle in maintaining entries along gob edges of sub-level caving mining and bolt support,it is applied to engineering practice and technical and economic results are gained.
出处
《煤》
2002年第3期10-11,21,共3页
Coal
