The resemch on spatial distribution and forming mechanism of karstic collapse columns at Changcun coal mine field of Lu＇an
Abstract：The cultivation,conducting water and gathering gas of the karstic collapse columns are threatening in the coal mines.According to the location and features of the karstic collapse columns in Changcun coal mine field,the causes of the karstic collapse columns were analyzed in the aspects of the karst development condition,the ground water flow condition and the tectonic setting,which were considered to major factors,and these factors interacted with each other and they did not function separably.The basic rule of karstic collapse columns＇ spatial distribution in Changcun coal mine field is concluded finally as follows：Ordovician limestone rich water anomalies,tenso-shear faults stress concentrations and the syncline axises and their turning ends are the positions in which the karstic collapse columns are likely to develop.
Keywords：Changcun coal mine fieldkarstic collapse columnskarstground water flowtectonic setting
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 283-287 )