DOI: 10.11799/ce201804014
Grouting stabilization governance technology of water flowing subsided column in Pingshuo No.1 Underground Mine
HUANG Fu-qiang
SUN Guo-zhong
Abstract：The collapse column grouting reinforcement is an effective way to alleviate the dangers of safety production in coal mine brought by water flowing collapse column. Based on the governance engineering of No.2 collapse column in the 19108 working face Pingshuo No.1 Underground Mine, we discussed the collapse column grouting reinforcement techniques, used the governance principle of"construction accompanied by analysis and optimizing design", and put forward the ending standards of grouting engineering and the test method for governance effect. The results show that:thorough analysis of collapse column development characteristics is the premise of grouting reinforcement governance;reasonable drilling layout and grouting parameter selection is the key technology of grouting reinforcement governance; the grout viscosity shall rise with grouting time, and grouting pressure shall increase gradually from 2MPa to 6MPa; inspection hole engineering quality inspection, the original exploration hole water yield and water quality analysis are effective effect-testing method. After the governance, 19108 working face safely passed No.2 collapse column.
Keywords：collapse columngrouting reinforcementrubber stopperOrdovician limestone groundwater
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 51-54 )