【摘要】 本文通过对小官庄铁矿破裂岩巷道十多年的支护和现场实测分析 ,提出破裂岩巷道锚杆支护围岩的主次承载区协调作用关系 ,指出这种作用关系的要点、实质和基本原则更多还原

【Abstract】 Based on the analysis of the ongoing engineering practice of fractured rock in Xiaoguanzhuang Iron Mine for ten years,the coordination relation between primary and secondary support zones is put forward.And the paper points out the focal point,essence and basic principles of the relation.更多还原