|Table of Contents|

Vibration Isolation Effect and Parameter Optimization of Rubber Gasbag in Foundation Dynamic Compaction(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2020年01期
Page:
111-119
Research Field:
Publishing date:

Info

Title:
Vibration Isolation Effect and Parameter Optimization of Rubber Gasbag in Foundation Dynamic Compaction
Author(s):
YAO Zhan-yong1;  SUN Meng-lin1;  KONG Jun2;  PENG Jun-qiang2;  JIANG Hong-guang1;  LI Hui1
(1. School of Qilu Transportation, Shandong University, Jinan 250002, Shandong, China; 2. Qilu Transportation Development Group, Jinan 250101, Shandong, China)
Keywords:
foundation;  rubber airbag;  dynamic compaction;  vibration isolation efficiency;  parameter optimization
PACS:
TU476
DOI:
10.19815/j.jace.2018.11055
Abstract:
The vibration isolation effect of rubber airbag was studied by indoor model test of dynamic compaction and the vibration isolation parameters were optimized. The single-factor analysis method was used to carry out the indoor rubber airbag model tests of different vibration isolation width, vibration isolation distance, vibration isolation length and vibration isolation depth. The vibration isolation efficiency of rubber airbag was analyzed by detecting the maximum acceleration of particle vibration on both sides of the vibration isolation plate. The influence of different isolation parameters on the isolation efficiency of rubber airbag was studied. The results show that the rubber airbag has good vibration isolation effect under the ramming energy of 1 500 kN·m. The vibration isolation width has no effect on the vibration isolation effect of rubber airbag. When the distance between the vibration source and the measuring points of the two sensors is the same, the vibration isolation distance has no effect on the vibration isolation effect of rubber airbag. The vibration isolation effect of rubber airbag is greatly influenced by the vibration isolation length within 12 m and the vibration isolation depth within 6 m, and the vibration isolation effect does not increase significantly after the two parameters go beyond their respective ranges. The effect of vibration isolation depth on the vibration isolation efficiency of rubber airbag is higher than that of vibration isolation length. Under the ramming energy of 1 500 kN·m, the optimal vibration isolation parameters of rubber airbag are the vibration isolation length is 12 m, the vibration isolation depth is 6 m. The vibration isolation width and vibration isolation distance can be determined according to field conditions. The field test of dynamic compaction verifies that the vibration isolation effect of rubber airbag under the ramming energy of 1 500 kN·m is better than that of gravel filled ditch, and the vibration isolation efficiency of rubber airbag is about 95% of that of hollow ditch. The related results can provide reference for the application of vibration control technology of foundation dynamic compaction.

References:

[1] 左名麟,朱树森.强夯法地基加固[M].北京:中国铁道出版社,1990.
ZUO Ming-lin,ZHU Shu-sen.Foundation Reinforcement by Dynamic Compaction[M].Beijing:China Railway Publishing House,1990.
[2]徐至钧,张亦农.强夯和强夯置换法地基加固[M].北京:机械工业出版社,2004.
XU Zhi-jun,ZHANG Yi-nong.Foundation Reinforcement by Dynamic Compaction and Dynamic Compaction Replacement Method[M].Beijing:China Machine Press,2004.
[3]蔡袁强,王大力,徐长节,等.强夯加固机理及其环境影响的数值分析[J].岩土力学,2005,26(增1):159-162.
CAI Yuan-qiang,WANG Da-li,XU Chang-jie,et al.Numerical Analysis of Dynamic Compaction and Environmental Effect Caused by the Impacting Vibration[J].Rock and Soil Mechanics,2005,26(S1):159-162.
[4]袁剑波,时林军,刘建华.红粘土填方路基强夯加固效果检测与分析[J].中外公路,2010,30(5):34-38.
YUAN Jian-bo,SHI Lin-jun,LIU Jian-hua.Detection and Analysis of Dynamic Consolidation Effect of Red Clay Filling Roadbed[J].Journal of China & Foreign Highway,2010,30(5):34-38.
[5]MAHDAVISEFAT E,SALEHZADEH H,HESHMATI A A.Full-scale Experimental Study on Screening Effectiveness of SRM-filled Trench Barriers[J].Geotechnique,2018,68(10):869-882.
[6]LYSMER J,WAAS G.S Waves in Plane Infinite Structures[J].Journal of Engineering Mechanics,1972,98:85-105.
[7]ADAM M,VON ESTORFF O.Reduction of Train-induced Building Vibrations by Using Open and Filled Trenches[J].Computers & Structures,2005,83(1):11-24.
[8]刘奉喜,刘建坤,防建宏,等.多年冻土区铁路隔振沟隔振效果的数值分析[J].中国铁道科学,2003,24(5):48-51.
LIU Feng-xi,LIU Jian-kun,FANG Jian-hong,et al.Numerical Analysis of the Vibration Isolation Effect of the Railway Vibration Isolating Cutting in Permafrost[J].China Railway Science,2003,24(5):48-51.
[9]邓亚虹,夏唐代,陈敬虞.车辆荷载作用下隔震沟隔震效率影响因素分析[J].岩土力学,2007,28(5):883-887,894.
DENG Ya-hong,XIA Tang-dai,CHEN Jing-yu.Analysis of Efficiency of Vibration Isolating Groove Subjected to Vehicle Load[J].Rock and Soil Mechanics,2007,28(5):883-887,894.
[10]杨先健.弹性地基板与地面屏障并联隔振设计[J].建筑结构,1994(12):46-52.
YANG Xian-jian.Parallel Vibration Isolation Design of Elastic Foundation Floor and Ground Barrier [J].Building Structure,1994(12):46-52.
[11]陈功奇,高广运.层状地基中填充沟对不平顺列车动荷载的隔振效果研究[J].岩石力学与工程学报,2014,33(1):144-153.
CHEN Gong-qi,GAO Guang-yun.Vibration Screening Effect of In-filled Trenches on Train Dynamic Loads of Geometric Irregular Track in Layered Grounds[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(1):144-153.
[12]高广运.非连续屏障地面隔振理论与应用[D].杭州:浙江大学,1998.
GAO Guang-yun.The Ground Vibration Isolation Theory and Application of the Continuous Barrier[D].Hangzhou:Zhejiang University,1998.
[13]高广运,杨先健,王贻荪,等.排桩隔振的理论与应用[J].建筑结构学报,1997,18(4):58-69.
GAO Guang-yun,YANG Xian-jian,WANG Yi-sun,et al.Theory and Application of Vibration Isolation by Piles in Rows[J].Journal of Building Structures,1997,18(4):58-69.
[14]王卫锋,师旭超.低能强夯工程中隔振沟隔振效果分析[J].铜业工程,2007(2):68-70.
WANG Wei-feng,SHI Xu-chao.Analysis on Vibration Isolation Effect of Vibration Isolation Ditch in Feeble-minded Strong Rammer Project[J].Copper Engineering,2007(2):68-70.
[15]陈 昆,贾 霄,刘 彬,等.高速铁路空沟隔振措施隔振效果的有限元分析[J].地震工程学报,2014,36(3):575-579.
CHEN Kun,JIA Xiao,LIU Bin,et al.Finite Element Analysis of Reducing the High-speed Railway Vibration Effect on the Environment Using Open Trenches[J].China Earthquake Engineering Journal,2014,36(3):575-579.
[16]淳 庆,潘建伍.减振沟在强夯施工时的减振效果研究[J].振动与冲击,2010,29(6):115-120.
CHUN Qing,PAN Jian-wu.Vibration-isolating Effect of Vibration-isolating Slot in the Process of Dynamic Compaction Construction[J].Journal of Vibration and Shock,2010,29(6):115-120.
[17]吕秀杰,龚晓南,李建国.强夯法施工参数的分析研究[J].岩土力学,2006,27(9):1628-1632.
LU Xiu-jie,GONG Xiao-nan,LI Jian-guo.Research on Parameters of Construction with Dynamic Compaction Method[J].Rock and Soil Mechanics,2006,27(9):1628-1632.
[18]王自励,李 娜,秦 星.高速铁路侧隔振沟不同填充物对减隔振效果的影响分析[J].哈尔滨铁道科技,2018(4):13-15.
WANG Zi-li,LI Na,QIN Xing.Effect Analysis of Different Fillers on Vibration Isolation Effect of High Speed Railway Side Vibration Isolation Channel[J].Harbin Railway Technology,2018(4):13-15.
[19]李豫川,翁泽宇,唐 杰,等.柔性基础双层隔振系统隔振效果评价的研究[J].噪声与振动控制,2018,38(6):172-177.
LI Yu-chuan,WENG Ze-yu,TANG Jie,et al.Evaluation of Vibration Isolation Effect of Double-layer Isolation Systems with Flexible Foundations[J].Noise and Vibration Control,2018,38(6):172-177.
[20]刘晶磊,于川情,刘 桓,等.隔振沟槽几何参数对隔振效果的影响研究[J].振动工程学报,2018,31(6):930-940.
LIU Jing-lei,YU Chuan-qing,LIU Huan,et al.Influence of Geometric Parameters of Isolation Trench on Vibration Isolation Effect[J].Journal of Vibration Engineering,2018,31(6):930-940.
[21]朱 宁,马龙祥.不同型式地铁隔振沟墙隔振性能研究[J].工程与建设,2018,32(6):799-802.
ZHU Ning,MA Long-xiang.Study on Vibration Isolation Performance of Different Types of Metro Vibration Isolation Trench Wall[J].Engineering and Construction,2018,32(6):799-802.
[22]刘晶磊,仉 健,冯桂帅,等.砂土地基中微型沟槽隔振效果试验研究[J].安全与环境学报,2018,18(4):1516-1522.
LIU Jing-lei,ZHANG Jian,FENG Gui-shuai,et al.Experimental Observation and Investigation of the Effect of the Miniature Trench Vibration Isolation in the Sand-soil Ground[J].Journal of Safety and Environment,2018,18(4):1516-1522.
[23]孙 军,吴宗臻,晋 杰,等.不同隔振屏障对铁路环境振动的隔振效果试验研究[J].铁道建筑,2018,58(4):147-150.
SUN Jun,WU Zong-zhen,JIN Jie,et al.Experimental Study on Vibration Isolation Effects of Different Vibration Isolation Barriers Against Environment Vibration Induced by Railway Trains[J].Railway Engineering,2018,58(4):147-150.
[24]姚锦宝,夏 禾,胡敬梁.空沟对列车运行产生的环境振动隔振效果研究[J].中国铁道科学,2018,39(2):44-51.
YAO Jin-bao,XIA He,HU Jing-liang.Study on Vibration Isolation Effect of Open Trench on Environmental Vibration Induced by Train Operation[J].China Railway Science,2018,39(2):44-51.
[25]宋 彧.相似模型试验原理[M].北京:人民交通出版社,2016.
SONG Yu.EST Principle of Similitude Model[M].Beijing:China Communications Press,2016.
[26]金 壮.粉土路基强夯质量评价与隔振技术研究[J].济南:山东大学,2015.
JIN Zhuang.Study on Effect Evaluation of Silt Subgrade Dynamic Compaction and Vibration Isolation Technology[D].Jinan:Shangdong University,2015.
[27]张大伟,郭立英,乔京生,等.强夯加固吹填土地基振动传递机理及减振措施研究[J].施工技术,2011,40(13):62-64.
ZHANG Da-wei,GUO Li-ying,QIAO Jing-sheng,et al.Study on Vibration Transfer Mechanism of Dredger Fill Foundation Strengthened by Dynamic Compaction and Vibration Reduction Measures[J].Construction Technology,2011,40(13):62-64.

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Last Update: 2020-01-13