地下开采爆破振动对地表构建筑物的影响研究

Effects of Vibration from Underground Blasting on Stability of Surface Buildings

为考察山东某金矿地下开采爆破振动对地表建筑物的影响,采用Instantel Blastmate Pro 6振动和过压监测仪分别在地下某采场爆破工作面附近和地表构建筑物开裂附近进行振动监测。通过地下开采爆破振动监测数据和MATLAB软件,回归拟合得到爆破振动速度衰减公式——萨道夫斯基公式,理论计算结果表明,地表构建筑物附近爆破振动不会对地表建筑物造成影响。通过地表构建筑物附近振动监测数据和Origin软件,得到地表构建筑物附近爆破振动质点振动速度值和频率值,再次从实际层面论证了地下开采爆破振动不会对地表构建筑物造成影响。

In order to investigate the effect of vibration from underground blasting on the surface building,Instantel Blastmate Pro 6 was adopted to monitor both surface and underground vibration.The obtained data were taken in the regression analysis and curve fitting by using MATLAB software,resulting in an attenuation law,Sadaovsk formula.The theoretical calculation results show that,vibration from blasting adjacent to the surface building won’t bring any impact on the building.The nearby vibration monitoring data for the surface building were analyzed with Origin software,with the peak particle velocity and frequency of vibration obtained,which can also verify that the undergrounding blasting has no relationship to the cracked buildings.