西龙池电站岩壁吊车梁爆破振动测试成果分析

Analysis on Test Results of Blasting Vibration of Anchored Crane Beam in Xilongchi Power Station

地下厂房第三层开挖爆破过程中,进行岩壁吊车梁爆破振动效应监测。通过振动速度传感器直接监测各测点的质点振动速度,并根据振动监测频谱资料,分析岩壁吊车梁的质点振动速度及规律,采用数学方法确定爆破参数k,α值,通过调整开挖爆破参数,指导在厂房开挖爆破中将岩壁吊车梁的振动响应控制在允许范围内。

The blasting vibration monitoring of anchored crane beam effect was conducted in the course of excavation blasting on the third layer of underground powerhouse. With the vibration speed sensor, the crane beam particle speeds and the law according to the spectrum data of vibration monitoring were analyzed. Then the blasting parameters values of K and a were determined with a mathematical method, and by adjusting the excavation blasting parameters, the vibration response to excavation of the plant blast crane beam may be controlled within an allowance extent.