Failure Causes and Repair Method of Steel Plate Concrete Shaft Liner in Full Face Drilling Section of Mine Shaft
JU Xian-bo
FANG Yun-mai
Abstract：The steel plate concrete shaft liner in the fully face drilling section of a mine auxiliary shaft in Banji Mine was damaged during water inrush occurred from the mine shaft. In order to meet the re-quirements of the mine safety and production ,according to the test results of the cores from the mine damaged shaft liner ,it was decided that the damaged shaft liner within 300~500 mm scope up and down of the fold zone was removed and the rest part of the liner was kept.Thus the removed and re-pair engineering workload could be highly reduced.During the repair construction period ,the carbon arc air gouging was applied to slice ,plane and separate the bolt anchor and internal steel plate of the mine shaft liner and then to remove the internal layer steel plate. A hydraulic splitter was applied to disintegrate the concretes of the mien shaft liner into pieces. The construction process was simplified and the construction schedule was speeded up.Due to the repair plan was scientific and rational ,the re-pair construction of the mine shaft liner was fully and successfully conducted.
Keywords：mine shaftsteel plate concrete shaft linerfailurerepaircarbon arc air gouging
Publication Date：2015-08-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 13-16 )