Deflection Analysis and Rectifying Control of Settlement of Ground Derrick
CHEN Hui;Qidong Coal Mine of Wanbei Coal-electricity Group Co., Ltd.;
Master well lifting system of Qidong coal mine is abnormal,after the measurement, the settlement of the four slants reached about 100 mm,the original horizontal well frame and the mounting bracket fixed bolts have been forced to the limit position,after further inspection,the center line of the tianlun platform is shifted to the west. In the meantime, there is a reverse phenomenon in the east and west direction,it seriously affects the normal and safe operation of master well lifting system. The causes of subsidence of the main well frame settlement are analyzed,then correct the deviation of the derrick,finally,the improvement of auxiliary tank road and track can be adjusted,finally,through the deviation correction of the derrick, it meets the requirement of safe operation justed.
【CateGory Index】： TD223;TD53