北洺河铁矿地应力与采动应力测量  

MEASURING OF IN-SITU STRESS AND DISTURBANCE STRESS IN BEIMINGHE IRON MINE OF CHINA

作　　者：欧阳振华[1] 蔡美峰[1] 李长洪[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《中国矿业》2005年第12期67-70,共4页China Mining Magazine

基　　金："十五"国家科技攻关计划项目(2004BA615B-18)

摘　　要：地应力是影响地下采矿的重要因素之一。本文采用实现完全温度补偿的空心包体应变技术的套孔应力解除法测量矿区地应力，采用MC型钻孔应力计测量采动应力，获得了地应力场和采动应力的分布规律，这些工作对于指导采矿设计和安全生产有着极其重要的作用。测量结果表明，北沼河铁矿地应力场以水平应力为主，采动应力分为明显的应力降低区、应力增高区和应力稳定区。In-situ stress is one of the most important influencing factors to underground mining. In Beiminghe iron mine, in order to obtain the distribution rule of in-situ stress and disturbance stress, the stress relief method by overcoring was used to measure the in -situ stresses and the MC model bore-hole stress gages was used to measure the disturbance stresses. In the fore measuring, the tecnique of improved hollow inclusion cells was adopted which can actualize complete temperature compensation. And all of these were very important to mining desing and security of production, The measuring results show that the insitu field of Beiminghe iron mine relies mainly on horizontal stress and the disturbance stress can be distinguished to stress decreasing zone, stress increasing zone and stress steadiness zone.

关 键 词：北沼河铁矿 地应力 采动应力 应力测量 

分 类 号：TD311[矿业工程—矿井建设]