Research on Adaptability of Full-mechanized Caving Mining with Large Mining-height

摘要：

In order to solve the safety problem from methane concentration in mining face with high mining intensity, full-mechanized top-coal caving mining with large mining-height was put forward. In spite of its advantages in controlling methane, its main problems were pointed out. Higher mining height might reduce coal-wall stability and result in coal or roof fall. Top-coal caving difficulty degree might increase with larger top-coal thickness. Numerical simulation software applied, coal-seam thickness, strength and mining height were believed to be main factors of influencing the adaptability of fullmechanized caving mining with large mining height by orthogonal test. Relationship formula of meeting coal-wall stability and good top-coal caving degree were obtained. Based on this, adaptable conditions of full-mechanized caving mining with large miningheight were presented. This provided theoretical reference for methods selection of safe and highefficient mining extremely thick coal-seam.

关键词： full-mechanized caving mining with large mining-height adaptability top-coal caving difficulty degree stability of coal wall

作者: LIU Quan-ming MAO De-bing

作者单位: Tiandi Science & Technology Co., Ltd,Qingniangou Road 5＃, Chaoyang District, Beijing, China Coal Mining & Designing Department, Tiandi Science & Technology Co., Ltd, Qingniangou Road 5＃, Chaoyang District, Beijing,China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 672-678

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）