弓长岭铁矿采场地压活动规律及控制方法的研究

A Research of Underground Pressure Action Law and it's Control Methods in Gongchangling Iron Mine

本文阐述了通过采场地压宏观调查,矿岩力学性质研究及有限元计算分析,找出该矿无底柱分段崩落法采场地压活动规律,提出一套综合控制地压方法,解决了巷道破坏问题,取得了较好的技术经济效果。

This paper reviews the stope underground pressure action law of the sab—level caving without sill—pillar by means of the stope underground pressure Macro—survey, the studies of the limited element analysis, and a series of the comprehensive control methods of the underground pressure, are put forward, As a result, the problems of drift failure were resolved, and the preferable technical and economic effects were obtained.