隧道爆破振动现场监测及动力响应分析研究

Field Monitoring and Dynamic Response Analysis of Tunnel Blasting Vibration

以楚雄段施工6标倒虹吸交通洞施工支洞区间隧道工程为背景,提出隧道爆破振动现场监测试验的可行性研究方案。通过现场试验对爆破振动速度和震率变化规律进行研究。详细分析了现场试验爆破点距离监测点距离处最大振动速度变化规律,发现爆破振动速度和震率符合M.A.萨道夫斯基地振动最大速度经验公式。

Based on the tunnel engineering of an inverted siphon access tunnel construction adit section,the feasibility study scheme of tunnel blasting vibration field monitoring test is proposed.Through the field test,the variation law of blasting vibration velocity and vibration rate is studied.The variation law of the maximum vibration velocity at the distance between the blasting point and the monitoring point in the field test is analyzed in detail.It is found that the blasting vibration velocity and vibration rate conform to the empirical formula of the maximum vibration velocity of M.A.dynamic response.