长江科学院院报2018，Vol.35Issue(6)：98-101,106,5.DOI:10.11988/ckyyb.20180238
码头堆场地基强夯加固对邻近铁路桥振动影响的研究
Influence of Dynamic Compaction of Wharf Yard Foundation on the Vibration of Adjacent Railway Bridges
丁圣辉 1丁淑平 2张明强3
作者信息
- 1. 湖北工程学院土木工程学院,湖北孝感 432000
- 2. 长江勘测规划设计研究院长江岩土工程总公司,武汉 430010
- 3. 长江勘测规划设计研究院市政与交通院,武汉 430010
- 折叠
摘要
Abstract
The land yard of Huashan wharf project of Wuhan Port is located in railway line area.To investigate into the influence of dynamic compaction on adjacent railway bridge,hence determining a reasonable compaction tech-nique,we analyzed the relationship between tamping energy,tamping number,tamping distance and railway bridge vibration according to field compaction test.In field test,the vibration velocity of bridge floor converged to 3.5 cm/s when dynamic tamping energy was 4500 kN·m after tamping number reached 5;the vibration velocity of bridge floor was smaller than 4.0 cm/s and vibration frequency less than 10 Hz when tamping energy amounted to 6000 kN ·m beyond 40 m,which meets the requirements of Standard for Allowable Vibration ofBuilding Engineering.In addition,the equation of vibration velocity attenuation of buildings caused by clayey foundation compaction was de-duced based on test results for reference for similar projects.关键词
码头堆场/地基强夯加固/振动/铁路桥/安全距离Key words
wharf yard/dynamic compaction of foundation/vibration/railway bridge/safe distance分类
交通工程引用本文复制引用
丁圣辉,丁淑平,张明强..码头堆场地基强夯加固对邻近铁路桥振动影响的研究[J].长江科学院院报,2018,35(6):98-101,106,5.
