摘要
地下洞室不良地质地段的支护采用传统的钢支撑支护，能够获得良好的支护效果。而在某工程的地下洞室不良地质地段的支护中采用了双层钢筋网同管式锚杆联合支护获得成功，产生了与钢支撑同样的支护效果，并带来了良好的经济效益。该支护形式在其它具有类似地质条件的工程项目中也被广泛应用。
Traditionally speaking , rib support ( which may be steel , lattice or concrete ribs ) is widely used in unstable rock encountered in underground excavation and it has proved to be useful . However , a joint support of alluvial rock bolt with a double-layer of wire mesh can also be satisfactory in the same type of unfavorable ground conditions , with better economic benefit . Presently this support form has been widely used in similar geological conditions of many projects .
出处
《水利科技与经济》
2000年第4期203-205,共3页
Water Conservancy Science and Technology and Economy
关键词
地下洞室
双层钢筋网
联合支护
锚杆
地质条件
Double-layer Wire Mesh， Joint Support， Unfavorable Conditions， Underground Tunnel
