鹤壁九矿工作面开采对副井井筒采动影响分析
Analysis of impact of mining in working face of Hebi No.9 Mine on the mining of auxiliary shaft
许胜军 1尹士献 2许国胜 3李德海1
作者信息
- 1. 河南理工大学矿业研究院,河南焦作 454000
- 2. 河南理工大学继续教育学院,河南焦作 454000
- 3. 贵州工程应用技术学院矿业工程学院,贵州毕节 551700
- 折叠
摘要
煤矿副井是地下开采活动的重要通道,肩负着矿井的人员提升、物料运输和通风等重要功能,在井筒保护煤柱开采中对井筒稳定性的研究至关重要.以鹤壁九矿新副井保护煤柱内工作面开采为研究对象,利用概率积分法计算井筒移动变形规律,并以此为基础,通过Drucker-Prager准则对井筒全段岩层的破坏情况进行判定,以此来评价开采方案对新副井的采动影响,可为煤矿的生产规划提供依据,为类似条件矿井井筒保护煤柱开采提供理论指导.
Abstract
The auxiliary shaft of coal mine is an important channel for underground mining operation,carrying important functions such as personnel lifting,material transportation,and ventilation in the mine.The study of shaft stability in the mining of shaft protection coal pillars is very important.This paper took the mining of the working face inside the protective coal pillars in the new auxiliary shaft of Hebi No.9 Coal Mine as the research object,calculated the law of shaft movement and deformation by using the probability integral method,and on this basis,judged the damage of the rock strata in the whole shaft section by the Drucker-Prager criterion,so as to evalu-ate the impact of the mining plan on the mining of the new auxiliary shaft,provide a basis for the mining planning of the coal mine,and provide theoretical guidance for the mining of the protective coal pillars of the shaft under similar conditions.
关键词
采动影响/立井破坏/概率积分法/Drucker-Prager准则Key words
mining influence/vertical shaft failure/probability integral method/Drucker-Prager criterion引用本文复制引用
基金项目
国家自然科学基金委—山西省煤基低碳联合基金国家重点项目(U1810203)
河南省重点研发与推广专项(科技攻关)项目(212102310013)
出版年
2024
NETL
NSTL
万方数据