摘要
提出了基于水平地应力的锚杆支护新理论“刚性”梁理论 ,指出锚杆预拉力是将水平应力的负面影响转化为积极作用的关键。实践证明 ,采用“刚性”梁理论进行锚杆支护设计可以加大锚杆间排距 ,降低巷道支护成本 。
Based on the distribution of horizontal stresses, the paper proposes a new theory of bolt support named as rigid beam theory, and indicates the key function in bolt support design is how to transfer negative effect of horizontal stresses into positive one by using pre tensioned bolt technique. The practice has showed that the new design of rigid beam can be applied to enlarge array space between bolts, cut down the support cost and step up the excavation of roadway.
出处
《矿山压力与顶板管理》
2000年第1期2-5,共4页
Ground Pressure and Strata Control
