楼矗云;刘军;蓝鹏;
LOU Chu-yun;LIU Jun;LAN Peng;Institute of Engineering Safety and Disaster Prevention,Hohai University;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University;

• 1:河海大学安全与防灾工程研究所
• 2:河海大学岩土力学与堤坝工程教育部重点实验室

摘要(Abstract)：

针对现有的爆破振动预测方法存在工程现场适用性差,不易于应用,无法准确预测完整的爆破振动信号在爆破时间段内的振动历程等问题,提出了一种基于样条插值的爆破振动预测方法。通过爆破中质点峰值速度、炸药量与爆心距的关系式,建立监测波形与预测波形的关系,对实测数据波形时域部分进行三次样条插值得到插值函数和预测目标点波形。通过实验和工程实践对该方法进行验证,并与传统的爆破振动预测方法进行质点峰值速度比对,结果表明:该爆破振动预测方法能够完整且较好地预测振动信号在爆破时间段内的振动历程,预测效果优于传统的爆破振动预测方法。
Many methods of the blasting vibration prediction had weakness like lack of feasibility for different kinds of ground,not easy in practical application,and could not get a whole accurate waveform of blasting vibration during the blasting time.This paper put forward a blasting vibration prediction method based on spline interpolation.The relationship between waveform monitored and predicted was built through the relation of peak particle velocity,explosive and blasting distance.The interpolation fuction and predicted target point waveform were got in time domain after spline interpolation three times.The proposed method was verified by an experiment and project practice and compared with the peak particle velocity in other traditional methods.It demonstrated that this method could better achieve the whole accurate waveform of blasting vibration.

关键词(KeyWords)： 爆破振动;波形预测;样条插值;质点峰值速度
blasting vibration;prediction waveform;spline interpolation;peak particle velocity

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51174076)

作者(Authors): 楼矗云;刘军;蓝鹏;
LOU Chu-yun;LIU Jun;LAN Peng;Institute of Engineering Safety and Disaster Prevention,Hohai University;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University;

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