2015年3月上 施工技术 第44卷第5期 CONSTRUCTION TECHNOLOGY 111 D0I:10.7672/sgj82015050111 强夯振动效应研究* 韩云山，段伟，安明2，杨印旺2，耿少波，秦伟华，苏航州3 (1 中北大学土木工程系，山西太原030051；2.山西机械化建设集团公司，山西太原030009； 3.长安大学公路学院，陕西西安710064) [摘要]以真实工程场地为研究对象，通过现场强穷振动监测，对比了有无隔振沟强夯振动对周围建筑物的影响， 得出建筑上部结构对夯击振动存在2倍以上放大效应结果.研究了自由场地地面振动速度随距离的衰减规律，分 析了强夯能级、测点与夯点的距离等因素对地面振动波传播规律的影响；通过频谱分析，得出衰减指数可用频率的 3次多项式拟合规律，计算出介质作用函数和强夯激励函数；并建立岩土体的物理力学性质和动力学特性关系. [关键词]地基；强夯；隔振沟；振动效应；衰减规律 [中图分类号]TU472 [文献标识码]A [文章编号]1002-8498(2015)05-0111-06 Study on the Vibration Effect of Dynamic Compaction Han Yunshan' Duan Wei' An Ming? Yang Yinwang2 Geng Shaobo' Qin Weihua' Su Hangzhou' (1.Department of Civil Engineering North University of China Taiyuan Shanxi 030051 China; 2.Shanxi Mechanisation Construction Group Company Taiyuan Shanxi 030009 China; 3.School of Highway Chang'an University Xi'an Shaanxi 710064 China) Abstract:Based on real engineering site through the monitoring of on-site dynamic paction vibration this paper shows that the upper structure of the building has 2 times magnification effects on tamping vibration by paring the presence with the absence of isolation trench dynamic paction vibration affecting surrounding buildings.The law of the free field ground vibration velocity decaying with distance is studied.Moreover this paper analyzes the influence of dynamic paction level the distance between the test point and tamping point on ground vibration wave propagation.Through the spectrum analysis this paper concludes that the cubic pol...
强夯振动效应研究.pdf
