黄登水电站骨料运输洞开挖爆破振动对邻近建筑物的影响分析

Analysis of the Vibration Influence to Adjacent Constructions Induced by Excavation Blasting in Huang Deng Hydropower Station Aggregate Transport Hole

对黄登水电站骨料运输洞爆破开挖对大格拉村民房的振动影响进行了监测与分析,根据爆破振动监测数据,利用HHT法分析了最大段药量对爆破振动信号频带能量分布的影响,并对质点振动速度进行了回归分析,得出了该地区爆破振动传播衰减规律,提出本工程施工允许的最大段药量估算公式,为工程的顺利开挖提供了参考依据。

Dagela village houses vibration influenced by excavation blasting in Huang Deng hydropower station aggregate transport hole was monitored and analyzed in the article. On the basis of monitored blasting vibration data, the distribution of signal band energy under the maximum dosage was analyzed with Hilbert-Huang transform （HHT）, the particle vibration velocity was regressed; and the attenuation law of blasting vibration transmission was obtained. The estimation formula of allowed maximum charge was concluded providing some reference for the successful excavation of the project.