Title: Analysis of Weighting Law of Individual Jacks Long-Wall Face in Nanliang Shallow Seam Covered with Thick Soil
Abstract: On the experiment study and pressure observation of first work face of Nan-Liang mine coal, the individual jacks sink and the main roof sink and the main roof intension and entry distort and entry destroy were analyzed. The law of strata behavior in individual jacks long-wall face which is covered with thick soil strata in shallow seam was gained. The results show, the first weighting step of thick soil strata shallow seam is very big, the strata behavior is severe, and the roof sink of cycle weighting is very big. In view of the support and disaster situation, the support measure was put forward to improve the support state to prevent the disaster to occur. It proved the important science theory basis to realize normal mining in individual jacks long-wall face which was covered with thick soil strata in shallow seam. 7figs.,8refs.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 1
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot