极软岩巷道的“高阻—让压”支护原则  

Principle supporting soft rock roadway with high resistance and yield pattern

作　　者：陈庆敏[1] 王彩根[1] 孙希奎[2] 

机构地区：[1]中国矿业大学 [2]淄博矿务局许厂矿

出　　处：《矿山压力与顶板管理》1998年第4期2-4,28,共4页Ground Pressure and Strata Control

摘　　要：谢桥矿东风井回风大巷围岩由于遭受较强的风化作用，工程地质性能很差，属于极软岩。针对极软岩的巷道支护，提出了“高阻限制—让压”的支护原则，并设计了以Ｕ型钢支护为基础，采用架后充填、型钢热处理、高强度卡缆、高扭力扳手等系统技术措施的高阻力可缩性支架支护形式，有效地控制住了极软岩巷道的剧烈变形。Abstract Because of strong weathering and very poor engineering geology property, the surrounding rock of main air return way connected with east ventilation shaft, Xieqiao Colliery, is extremely soft, severe deformed. To counter that, a high resistance and yield supporting process is proposed. U shape steel yield support is the base, back filling, steel heat treatment,high strength connector and high moment spanner is necessary reinforce and guarantee measures. Under the action of the supporting, deformation of the roadway with extremely soft rock has been effectively controlled.

关 键 词：支护原则 U型钢支护 巷道支护 软岩巷道 

分 类 号：TD353[矿业工程—矿井建设]