摘要
运用理论分析、相似模型实验和现场实测 ,系统研究了放顶煤采场前支承压力的分布规律及其主要影响因素 ,得出支承压力表达式 ( 3)、( 7)是可信的 ,塑性区宽有利于顶煤压裂 ,峰值低影响硬煤冒放 。
The author systematically studies the distributive Law of front abutment pressure and its main influential factor in Top-coal caving face by analysing theory,experimenting similar model,and observing spot.The front abutmewt pressure formula (3)、(7) is reliable.Wide plastic area is advantageous for Top-coal fracture.Low abutmented pressure peak value influences hard top coal caving.The thickness of one time mining seam is limited in top-coal caving face.
出处
《太原理工大学学报》
CAS
2001年第3期216-218,共3页
Journal of Taiyuan University of Technology
基金
国家自然科学基金重点资助项目! (5 973 4 0 90 )
关键词
放顶煤采场
前支承压力
塑性区
一次采厚
煤矿开采
top coal caving face
front abutment pressure
plastic area
thickness of one time mining seam
