SEISMIC MONITORING OF LARGE-SCALE KARST PROCESSES IN A POTASH MINE
In October 2006 a serious accident happened in Berezniki-1 mine of the worlds second largest Verkhnekamskoye potash deposit. The integrity of the waterproof stratum which separates mine workings from aquifers was broken and an uncontrolled flooding of the mine had begun. The accident resulted in the appearance of several potential problems associated with karst processes in the rock mass above the mine, i.e. hazardous subsidence of the earths surface and formation of a sinkhole. The exact position of the water inflow zone was unknown due the inaccessibility of the excavations within the problematic part of the mine. This aggravated the situation seriously. The applied complex of geophysical and geotechnical methods made it possible to localize the inflow zone, to estimate the size of the expected sinkhole and to monitor its development in time. Seismic monitoring played an essential role in these investigations. This paper summarizes the details of the seismological observations in Berezniki-1 mine and the main results thereof.
DMITRIY A.MALOVICHKO RUSLAN A.DYAGILEV DENIS Y.SHULAKOV PAVEL G.BUTYRIN SERGEY V.GLEBOV
Mining Institute, Ural branch of the Russian academy of sciences Perm 614007, Russia JSC Uralkali Berezniki, Perm region, 618426, Russia
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
989-1002
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）