摘要
地下矿山在深部开采过程中扰动了巷道(采场)矿岩周围初始应力场,导致矿岩失稳,发生崩塌、弹射等岩爆现象。凡口铅锌矿目前采矿作业重心在深部中段,与上部中段相比,深部中段地压高,应力集中,矿岩稳固性减弱,采场、巷道边帮顶板冒落增多,多次出现岩爆,对采矿作业危害较大。文章通过分析凡口深部岩爆的特征、分布特点,阐述了岩爆与地质因素的关系,提出有效的防范措施。
In the process of deep mining, the underground mine disturbed the initial stress field around roadway ore - rock, which led to the ore rock unstability, collapse, catapult and other rockburst phenomenons. At present, the main mining operation core is in the deep levels. Compared with the upper levels, the deep levels have high ground pressure and stress concentration. The mine rock stability weaken. The roof caving of the stope and roadway sidewall increase. The rockburst occurs repeatedly. All of them have great harm to the mining operation. Through analyzing the features and characteristics of distribution of Fankou deep rockburst, this article elaborated the relationship between rockburst and geological factor and put forward effective precautionary measure.
出处
《冶金丛刊》
2016年第3期37-42,共6页
Metallurgical Collections
关键词
岩爆
地质因素
地应力
Rockburst
Geological Factor
Crustal Stress
作者简介
原桂强（1970-），男，汉族，工程师，湖南湘乡人。
