土工基础

土工基础 ›› 2021, Vol. 35 ›› Issue (6): 798-800.

• 测试技术 • 上一篇    下一篇

潮间带爆破挤淤加固地基沉降现场监测分析

夏俊吾1，张金荣2，王军2，张留俊3，秦伟2，胡永刚1，张志宙3，项爱华1，傅培其3，潘朝昊2   

  1. (1. 浙江交工集团股份有限公司，杭州 310052；2.温州大学，浙江温州 325035；3.中交第一公路勘察设计研究院有限公司，西安 710058)
  • 收稿日期:2021-07-22 修回日期:2021-07-28 出版日期:2021-12-30 发布日期:2021-12-24
  • 作者简介:夏俊吾（1976-），男，高级工程师，研究方向为交通土建工程施工管理。
  • 基金资助:
    温州市基础性科硏项目（S20210005）；浙江省教育厅一般项目（Y202044146）；浙江省教育厅专硕项目（Y202146757）；温州大学硕士研究生创新基金项目（316202002070）

In-Situ Monitoring and Analysis of Settlement in Tidal Zone Soft Soils Improved by Blasting Method

XIA Junwo1, ZHANG Jinrong2, WANG Jun2, ZHANG Liujun3, QIN Wei2,  HU Yonggang1, ZHANG Zhizhou3, XIANG Aihua1, FU Peiqi2， PAN Chaohao2   

  1. (1.Zhejiang Communication Construction Group Co. Ltd., Hangzhou 310052；
    2.Wenzhou University, Wenzhou 325035；
    3.CCCC First Highway Consultants Co. Ltd., Xi’an 710058)
  • Received:2021-07-22 Revised:2021-07-28 Online:2021-12-30 Published:2021-12-24

摘要： 爆破挤淤法处理深厚软土地基具有施工工序简单，工期短，成本低等优点，该方法处理的地基竖向沉降是直接判定处理效果的指标之一。对于加固滨海潮间带软土，这种方法适用性高，但是竖向沉降变形规律相关报道较少，为了探明竖向沉降的演化规律，依托我国东南滨海某潮间带公路建设项目，采用沉降板开展长期观测并分析。研究发现爆破挤淤施工50 d以后路基沉降趋于稳定，172 d内最大沉降实测值0.307 m，1号沉降板观测期内竖向沉降已趋于收敛。

关键词: 爆破挤淤, 潮间带, 滨海软土路基, 沉降板, 竖向沉降

Abstract: The soil improvement by blasting method has the advantages of simple construction process, short construction period and cost effective. The vertical settlement of soft soils improved by this method is one of the indicators for the treatment effect. This method is widely applied in strengthening soft soils in the coastal tidal zone. However, the vertical deformation pattern of improved soils is rarely reported. To investigate the settlement of the improved soils in the tidal zone, a long-term settlement observation program for highway project by using the settlement plates was implemented. The results indicate that the settlement of the roadway embankment stabilized after 50 days after the blasting treatment. The observed maximum settlement value in 172 days was 0.307 m and the settlement plate No. 1 was stabilized in during observation period.


Key words: soil improvement by blasting method, tidal zone, coastal soft soils, settlement plate, vertical settlement

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