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本文扼要地介绍了我院自己研制的KDY-130型钻孔多点位移计及有关设备;重点论述了该仪器在鲁布格水电站引水隧洞围岩变形观测中的实际情况,证明了位移计具有性能稳定、灵敏度高、可以遥测和抗震性能好等优点;该位移计可用来观测围岩变形随深度的变化、围岩流变以及隧洞开挖掘进工作面的空间效应等。通过试验资料整理分析,找到了围岩变形的某些规律性,并与国内外同类资料和理论分析作了对比,初步论证了成果的可靠性。
This article briefly introduces the KDY-130 drilled multi-point displacement meter and related equipment developed by our institute; it focuses on the actual situation of this instrument in deformation observation of the surrounding rock of the diversion tunnel of the Lubge hydropower station, and proves that the displacement meter has It has the advantages of stable performance, high sensitivity, remote measurement and seismic performance, etc. The displacement meter can be used to observe the change of surrounding rock deformation with depth, the rheology of surrounding rock, and the spatial effect of tunnel excavation into the working face. Through the analysis of the test data, we found some regularity of the deformation of the surrounding rock, and compared it with the similar data and theoretical analysis at home and abroad, and initially demonstrated the reliability of the results.