Design and realization of microseismicity monitoring system for underground powerhouse of Dagangshan Hydropower Station
Hui Ma · Water Resources and Hydropower Engineering · 2011
In accordance with the crown collapse of the underground powerhouse of Dagangshan Hydropower Station in Sichuan Province during the excavation and the hidden safety troubles from the collapsed area,the ISS microseismicity monitoring system from South Africa is designed and installed therein for making up the defects from the conventional monitoring measures;i.e.eight 14 Hz amplitude detectors are arranged around the collapsed area with the geographic advantage of the upper drainage gallery located therein based on the data acquisition unit(GS) with 32-bit analog-to-digital converting precision and the DSL communication scheme with the maximum distance of 7 km,and then the remote-control and real-time monitoring are realized with a powerful function of data processing,which is quite favorable to the data interpretation and theoretical study concerned.If working together with the relevant communication system and network,not only the requirement from the intelligent system of microseismicity monitoring for large scale project can be met with an adaptable enlargement,but a certain reference can also be expected to provide for the design and selection of the microseismicity monitoring system for the similar project concerned.