煤矿安全2012，Vol.43Issue(4)：12-14,3.
沿空留巷巷旁充填材料选择及试验
Selection and Test of Road-side Filling Material in Gob-side Entry Retaining
王佳喜 1刘永立 2冯俊杰 1秦涛2
作者信息
- 1. 龙煤集团七台河分公司,黑龙江七台河154600
- 2. 黑龙江科技学院,黑龙江哈尔滨,150027
- 折叠
摘要
Abstract
Compressive strength test and dynamic monitoring of whole process-acoustic emission of speciments compression-shear failure were implemented with cylindrical specimen,pure cement-mortar specimen and different refuse-rate cube specimens.The results showed that changes of specimens strength reducuing with concentration increase of water-cement,strength of specimens with refuse are more than cement-mortar.Frequency and energy-ratio of acoustic emission were related with specimens load.Acoustic emission frequency and energy-ratio of specimens increasing gradually with the increasing of stress.Acoustic emission frequency and energy-ratio of specimens were decreased gradually with the decreasing of stress after peak.关键词
沿空留巷/充填材料/声发射/抗压强度Key words
gob-side entry retaining/filling material/acoustic emission/compressive strength分类
矿业与冶金引用本文复制引用
王佳喜,刘永立,冯俊杰,秦涛..沿空留巷巷旁充填材料选择及试验[J].煤矿安全,2012,43(4):12-14,3.
