摘要
为探究强夯振动速度的衰减规律及设置双减振沟对强夯振动速度的衰减效果,在施工现场进行了设置无减振沟与设置单减振沟的对比实验以及设置单减振沟与双减振沟的对比实验,通过检测不同情况下强夯引起的地面振动速度及频率,对比分析了无减振沟、单减振沟、双减振沟三种情况振动速度的衰减规律.实验研究表明,在设置单减振沟基础上再设置一条减振沟能更大幅度削减振动速度,双减振沟的减振规律与单减振沟减振规律相似,且其减振效果是在单减振沟基础上再降低70%以上.
In order to study the attenuation law of dynamic vibration velocity and double vibration reduction trench on its role in the reduction,two comparison experiments were carried out at the construction site,respectively,the experiment of no vibration reduction trench and single vibration reduction trench and the experiment of single vibration reduction trench and double vibration reduction trench.By detecting the ground vibration velocity and frequency caused by dynamic compaction in different cases,compared and analyzed the attenuation law of dynamic vibration velocity in three cases of no trench,single trench and double trench.Experimental results show that setting the second vibration reduction trench on the basis of the single vibration reduction trench can significantly reduce the vibration velocity,vibration reduction effect of double vibration reduction trench is based on single vibration reduction trench and then cut more than 70%.
作者
郭宏
王璇
董彦莉
赵栋
GUO Hong;WANG Xuan;DONG Yan-li;ZHAO Dong(School of Science,North University of China,Taiyuan 030051,China)
出处
《中北大学学报（自然科学版）》
CAS
2018年第5期515-520,528,共7页
Journal of North University of China(Natural Science Edition)
基金
国家青年科学基金资助项目(51208473)
关键词
强夯振动
双减振沟
振动速度
瑞利波
dynamic compaction vibration
double vibration reduction trench
vibration velocity
Ray-leigh wave
