摘要
通过对单体支柱、π型梁放顶煤一次采全高技术的开采试验 ,研究了在“三软”极不稳定煤层条件下 ,普通放顶煤开采工作面的矿压显现规律 ,试验研究了合理的支护方式及支护参数。实践和研究证明在“三软”极不稳定煤层中 ,单体支柱放顶煤一次采全高是一种与之相适应的高产高效开采技术 .
Based on mining tests on the monomerprop and π pattern girder caving method with full shear height, analysis and studies on the ground behavior regularity of conventional caving method coal face on “Soft Seam With Soft surrounding” and extremely unstable seam have been porformed. Experiment and study of the appropriate support patterns and support parameters have been carried out. Practice and study has confirmed that the monomerprop caving method with full shear height on “soft seam with soft surrounding”and extremely unstable soft seam is an adapted mining technique with high output and high efficiency.
出处
《焦作工学院学报》
2000年第3期174-178,共5页
Journal of Jiaozuo Institute of Technology(Natural Science)
基金
河南省重点难题招标项目
关键词
三软煤层
放顶煤开采
矿山压力
支护
soft seam with soft surrounding
extremely unstable
caving method
monomerprop
ground behavior
π pattern girder
