[1]时伟,邵琪琳,董炳寅,等.深厚粉细砂场地8 000 kN·m能级强夯振动衰减规律研究[J].西安建筑科技大学学报(自然科学版),2019,51(03):309-314.[doi:10.15986/j.1006-7930.2019.03.001]
　SHI Wei,SHAO Qilin,DONG Bingyin,et al.Research on vibration decay law of 8 000 kN·m energy level dynamic compaction in deep silty sand site[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(03):309-314.[doi:10.15986/j.1006-7930.2019.03.001]
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深厚粉细砂场地8 000 kN·m能级强夯振动衰减规律研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年03期
页码:
309-314
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
Research on vibration decay law of 8 000 kN·m energy level dynamic compaction in deep silty sand site
文章编号:
1006-7930(2019)03-0309-06
作者:
时伟1; 邵琪琳1; 董炳寅2; 胡瑞庚3
(1. 青岛理工大学 土木工程学院，山东 青岛 266033；2. 中华岩土集团股份有限公司，北京 100026；3. 中国海洋大学 环境科学与工程学院，山东 青岛 266003)
Author(s):
SHI Wei1;  SHAO Qilin1;  DONG Bingyin2; HU Ruigeng3
(1. School of Civil Engineering, Qingdao University of Technological, Qingdao 266033, China; 2. China Zhong-hua Geotechnical Engineering Co.Ltd, Keyuan Road 13, Beijing 102600， China；3. School of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, China)
关键词:
强夯; 振动监测; 深厚粉细砂; 衰减规律; 安全距离
Keywords:
dynamic compaction;  vibration monitoring;  deep silty sand;  attenuation law;  safe distance
分类号:
TU43
DOI:
10.15986/j.1006-7930.2019.03.001
文献标志码:
A
摘要:
为研究砂土场地强夯振动规律，减少强夯对周边环境的影响，在某深厚粉细砂场地进行8 000 kN·m强夯试验，并进行强夯振动监测，分析强夯振动随测点距离的衰减变化规律和随楼层的衰减变化规律,确定了8 000 kN·m能级强夯安全施工距离，并对隔振沟隔振效果进行振动监测.根据试验数据进行非线性拟合，得到三向合振速随距离、楼层的变化规律，在夯点处，垂向振速最大，随着距夯点距离的增加，环向振速最大，在该深厚粉细砂场地8 000 kN·m能级强夯振动下的安全施工距离为220 m；在不同楼层处，环向振速最大，在安全施工距离内，相比于框架结构，强夯振动对砖混结构的影响较大.
Abstract:
In order to study the law of dynamic compaction vibration in sandy soil site and reduce the impact of dynamic compaction on the surrounding environment, dynamic compaction test of 8 000 kN·m was conducted in deep silty sand site, and dynamic compaction vibration data was monitored.Analyze the variation regularity with the distance of measuring point under the dynamic compaction vibration and the variation regularity with the floor, determine the safe construction distance. According to the experimental data, the nonlinear fitting was carried out, test the effect of the vibration isolation. The nonlinear fitting is performed to get the change rule of three-way combined vibration with distance and floor. The results show that when the vibration velocity changes with the distance, the initial maximum vibration velocity is largest vertically，the safety distance of this deep silty sand site under dynamic compaction vibration of 8 000 kN·m is 220 m; when the distance is farther, the ring vibration speed is the largest. At different floors, the circumferential vibration velocity is the largest. In the safe construction distance, the strong vibration has a greater influence on the brick-concrete structure than the frame structure.

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备注/Memo

备注/Memo:
收稿日期:2018-04-11修改稿日期:2019-05-05
基金项目:山东省住房和城乡建设厅研究开发基金项目(2016-02-1)
第一作者:时伟(1964-)，女，教授，硕士生导师，主要从事地基处理与基础工程研究．E-mail: susan.sw@163.com
更新日期/Last Update: 2019-07-21