急倾斜薄矿脉崩落法开采及崩落散体的承载机理

doi:10.12068/j.issn.1005-3026.2019.02.024

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (2): 278-283.DOI: 10.12068/j.issn.1005-3026.2019.02.024

急倾斜薄矿脉崩落法开采及崩落散体的承载机理

安龙¹，王日东²，侯朋远¹，梁瑞余¹

(1.东北大学深部金属矿山安全开采教育部重点实验室，辽宁沈阳110819;2.威海晶合数字矿山技术有限公司，山东威海264200)

收稿日期:2017-11-26 修回日期:2017-11-26 出版日期:2019-02-15 发布日期:2019-02-12
通讯作者: 安龙
作者简介:安龙(1987-)，男，内蒙古呼伦贝尔人，东北大学博士后研究人员.
基金资助:
国家自然科学基金资助项目(51604060)；中央高校基本科研业务费专项资金资助项目(N160104001)；中国博士后科学基金资助项目(2016M601324).

Caving Mining of Steeply Inclined Narrow Veins and Supporting Mechanism of Caved Rock

AN Long¹， WANG Ri-dong²， HOU Peng-yuan¹， LIANG Rui-yu¹

1.Key Laboratory of Ministry of Education for Safe Mining of Deep Metal Mines， Northeastern University， Shenyang 110819， China; 2.WeiHai Gemho Digital Mining Technology Co.， Ltd.， Weihai 264200， China.

Received:2017-11-26 Revised:2017-11-26 Online:2019-02-15 Published:2019-02-12
Contact: AN Long
About author:-
Supported by:
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摘要/Abstract

摘要： 以金厂沟梁金矿为工程依托，利用崩落矿岩散体的承载机理，提出了急倾斜薄矿脉破碎矿体崩落法开采方案.运用数值计算手段，研究崩落矿岩散体的承载机制，分析分段高度对崩落矿岩散体承载效果的影响.计算结果表明:与空场法开采相比，崩落法开采有效改善了采场围岩的稳定性，围岩塑性区体积减小了58.4%.随着分段高度的增大，崩落矿岩散体对围岩的支撑作用相应减弱，但影响较小.研究结果表明，采用崩落法回采急倾斜薄矿脉破碎矿体是合理的、可行的，同时也为该类矿体的回采提供了新的思路.

关键词: 崩落法, 急倾斜薄矿脉, 围岩稳定性, 分段高度, 数值计算

Abstract: Based on the gold mine in Jinchanggouliang， taking advantage of the supporting role of caved rock， a caving mining method was proposed for steeply inclined narrow veins. Using numerical simulation method， the support mechanism action of caved rock for surrounding rock was studied and the influence of sublevel height on the supporting effect of caved rock was analyzed. The calculation results are as follows: the stability of surrounding rock increases significantly by the caving mining method compared with the open stope method and the volume of plastic zone decreases by 58.4%.With the increase of the sublevel height， the support effect of caved rock decreases slightly. The research result provides a new way for mining the broken orebody with steeply inclined narrow veins based on caving mining method. The feasibility and rationality of the caving mining method are also verified.

Key words: caving mining method, steeply inclined narrow vein, stability of surrounding rock, sublevel height, numerical simulation

中图分类号:

TD851

安龙，王日东，侯朋远，梁瑞余. 急倾斜薄矿脉崩落法开采及崩落散体的承载机理[J]. 东北大学学报:自然科学版, 2019, 40(2): 278-283.

AN Long， WANG Ri-dong， HOU Peng-yuan， LIANG Rui-yu. Caving Mining of Steeply Inclined Narrow Veins and Supporting Mechanism of Caved Rock[J]. Journal of Northeastern University Natural Science, 2019, 40(2): 278-283.

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急倾斜薄矿脉崩落法开采及崩落散体的承载机理

Caving Mining of Steeply Inclined Narrow Veins and Supporting Mechanism of Caved Rock

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