Regularity and prediction of ground pressure in Haigou Gold Mine
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- 作者：Meifeng Cai ; Shuhua Hao ; Hongguang Ji
- 关键词：ground pressure ; regularity ; prediction ; numerical modeling ; in-situ monitoring ; 4 judgment modes
- 刊名：Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material
- 出版年：2008
- 出版时间：October 2008
- 年：2008
- 卷：15
- 期：5
- 页码：521-527
- 全文大小：798 K
文摘
Previous mining excavation in upper sublevels left several mined-out areas in Haigou gold mine. To ensure safety of the main and auxiliary shafts and mining production in deeper sublevels, systematical studies on regularity, prediction, and control of ground pressure in the mine were carried out. Through 3D-numerical modeling and in-situ monitoring of acoustic emission, pressure and displacement, the ground pressure activity and the stability status of surrounding rock masses and the two shafts were assessed. Based on in-situ monitoring practice in Haigou mine, 4 modes to judge rock stability according to the monitoring information of acoustic emission, pressure, and displacement were presented.