Open AccessStudy on defining developmental basement and treatment measures of collapse columns in Pingshuo Mining Area
Author(s) -
Liyun Ding
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/474/5/052066
Subject(s) - borehole , mining engineering , hydrogeology , coal mining , carboniferous , geology , grout , karst , column (typography) , geotechnical engineering , coal , engineering , paleontology , structural basin , waste management , structural engineering , connection (principal bundle)
In order to realize the rapid treatment of concealed collapse columns in the 19108 Working Face of Anjialing No.1 Underground Mine in Pingshuo Mining Area and achieve safety mining of the working face, the method of “treatment combining with exploration and design” was used to grout and treat the collapse columns. Based on the analysis exploration data and the borehole verification data after grouting of the collapse columns, and combined with the previous geological data of Pingshuo Mining Area, the basic formation conditions and distribution regularities of the soluble-salt-type collapse columns in Pingshuo Mining Area were studied; and hydrogeological characteristics of the soluble-salt-type collapse column was obtained; and targeted treatment measures were put forward. The results showed as follows: (1) The type of collapse columns developed in the Pingshuo Mining Area is a soluble-salt-type, the basement of collapse column developed in Carboniferous coal measure strata; (2) The concealed collapse columns in the 19108 Working Face are all soluble-salt-type sinking column, which does not pass through the Ordovician limestone karst aquifer; (3) The treatment measures for the collapse columns of the working face were effective.