地应力场的结构分析在声发射Kaiser效应中的应用  

An Application of Structure Analysis of In-situ Stress to Acoustic Emission Kaiser Effect

作　　者：陈宏[1] 周昌达[1] 

机构地区：[1]昆明理工大学,云南昆明650093

出　　处：《云南冶金》2000年第4期8-12,共5页Yunnan Metallurgy

摘　　要：由于地压活动的复杂性及kaiser效应和声发射技术本身存在的问题 ,Kaiser效应测量原岩应力的方法在现场应力测量方面还有许多重要问题尚待进行深入地研究和实践 ,其中与生产实际联系最密切也是最关键的问题是原岩应力的主方向如何确定的问题。本文结合国家“八五”科技攻关课题子专题《高峰区覆盖岩层活动监测为控制技术》以及《云锡老厂 14- 5矿体采场结构尺寸及回采顺序的优化研究》 ,利用岩体结构分析方法来确定地应力场的主应力方位 ,为Kaiser效应测定地应力值的现场采样提供定向依据。Because of the complexity of ground pressure and limitations of acoustic emission technology,the application of the method of using Kaiser Effect to measure the in-situ stress of rock masses into the measurement of in-situ stress was found to have existed some big problems which need intensive studies and practices.Among them,the determination of main direction of rock masses stress was the most tide-up with production practices and the key prlblem.On the basis of a study on a state“Eighth Five Years Plan”project,i.e.,The monitor of the geopressure of veins and stability of back fillings in Tong Keng mine in Da Chang,this study used the structural analysis to determine the main direction of ground stress.This has provided a direction basis for in spot sampling for the determination of in-situ stress value by using Kaiser Effect.

关 键 词：结构分析 声发射 凯塞效应 原岩应力 地应力场 

分 类 号：TD311[矿业工程—矿井建设]