复杂环境下爆破挤淤软基处理技术应用研究

摘要

在阐述爆破挤淤作用机理的基础上,介绍了复杂环境下爆破挤淤软基处理工程实例,开展了现场爆破试验和振动测试,得出了爆破地震波随距离衰减规律,从而进行了爆破参数的优化设计.工程实践表明:优化设计达到了预期的效果,爆破振动速度控制在安全范围以内,未对周围建筑设施造成危害；而且,抛石层落底标高与落底宽度达到设计要求,堤身落底达到设计规范要求.%The engineering practice of squeezing silt by blasting technology in complex environment was introduced based on blasting mechanism.The practical blasting trial and the blasting vibration tests were carried out and then the optimal blast parameter was obtained by the attenuation law of blasting vibration.Practice result shows that the optimal design reached the expected effect and the vibration velocity fitted the safety-judging standard well and made no damage to the surrounding buildings.Furthermore,the bottom elevation and width of throwing rock met the design requirement.