减震沟是降低爆破地震效应的一项重要技术措施。结合工程项目实际,进行减震沟的爆破实验,对有无减震沟的爆破地震波进行了现场测试,对测试数据进行分析计算,研究减震沟对爆破震动作用的一般规律。结果表明,合理利用减震沟可明显降低爆破地震强度,改变地震波频率结构,分散能量,有利于减震。 Shock ditch is an important technical measure to reduce the seismic effect of blasting. Combined with the actual project, the blasting experiment of shock-absorbing ditch was carried out to test the blasting seismic wave with or without ditch. Field test was carried out on the test data to study the general rule of shock-absorbing ditch on blasting vibration. The results show that the rational use of shock-absorbing ditch can obviously reduce the seismic intensity of blasting, change the frequency structure of seismic wave, disperse energy and be helpful to shock absorption.