Research on Hazard Assessment and Control Technology of Room and Pillar Mining Method Goaf in Shendong Mining Area
ZHANG Jun-ying
LI Wen
YANG Jun-zhe
ZHANG Bin
HE An-min
LI Hong-jie
BI Zhong-wei
CHEN Qing-tong
LIN Hui-li
Abstract：Based on a investigation and reconnaissance,comprehensive analysis,danger grading and evaluation,site monitoring and meas-urement as well as test and other methods,the paper analyzed hidden danger type of the goafs in a room and pillar mining and provided a danger grading method of the goafs in the room and pillar mining method of Shendong Mining Area. A safety evaluation experts system of the goafs in the room and pillar mining of Shendong Mining Area was developed and a hidden danger was evaluated.With a blasting experi-ment,a grouting experiment was conducted in the goafs of the room and pillar mining.The results showed that the goafs of the room and pil-lar mining had an area of 29. 05 km2 in Shendong Mining Area and the goafs of the pillar mining had 4 different hidden dangers,including the important buildings,communication towers and high voltage power line towers,important highway on the surface and the underground mining and driving safety.The danger grades of the goafs in the room and pillar mining in Shendong Mining Area were divided into five grades.A safety experts evaluation system was developed for the goafs in the room and pillar mining of Shendong Mining Area and the eval-uation results could meet the site actual.The surface grouting and blasting treatment experiment measures could provide reliable safety in-surances to danger evaluation of the goafs in room and pillar mining,hidden danger control and the buildings protection and utilization.
Keywords：room and pillar mining method goafhidden hazard in goafgrouting controlblasting control
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 14-19 )