确定采煤工作面合理支护阻力的数值方法(点击标题下载全文) 已下载

作者:陆明心

作者单位:中国矿业大学(北京)矿业工程系

摘要:对不同地质及开采条件下的采煤工作面上覆岩层的活动进行了UDEC数值模拟,发现工作面上覆岩层平衡结构层位与采高及一次采出煤层厚度并不存在线性关系.所形成的平衡结构有两类,即稳定平衡结构和似平衡结构.文中给出了确定合理支架工作阻力的计算公式,并在水峪矿7103工作面及成庄矿3308工作面支架工作阻力确定中进行了应用.

基金:国家自然科学基金重点资助项目(59734090);

关键词:数值模拟;似平衡结构;支护阻力;

DOI:10.16186/j.cnki.1673-9787.2005.04.005

分类号:TD355

The Digital method for Calculating the Rational Support Capacity in a Coal Mining Workface

Abstract:This paper analyzes the results of the UNDEC simulation for surrounding rock displacement of a mining workface.The results indicate that with differing geology and technical conditions, the balanced structural position is not linear with the mining height.The two types of balanced structures consist of a stable structure and a seemingly stable structure.The author provides the calculation formula for the rational support capacity and applies it to workface 7103 in Shuiyu Colliery and workface 3308 in Chengzhuang Colliery.

 
 
Insert title here
Copyright ?2013. All Rights Reserved  河南理工大学出版中心 
 Tel:0391-3987068,3987069;E-mail:
zkxb@hpu.edu.cn,skxb@hpu.edu.cn
建议使用win7以上系统,和IE9及以上浏览器以获得更好的使用体验