土工基础

›› 2017, Vol. 31 ›› Issue (5): 623-627.

• 工程实录 • 上一篇    下一篇

填土作用下桩基框架结构堤防原位观测和数值模拟

胡晓明，詹敏杰   

  1. （浙江广川工程咨询有限公司，杭州 310020）
  • 收稿日期:2016-11-07 修回日期:2016-11-21 出版日期:2017-10-20 发布日期:2017-10-29
  • 作者简介:胡晓明（1979-），男，高级工程师，研究方向为水利工程设计和研究。
  • 基金资助:

    浙江省水利科技计划项目（RC1224）

Field observation and numerical simulation of the Embankment with Pile Supported Frame Structures Under Backfill Loads

HU Xiaoming, ZHAN Minjie   

  1. (Zhejiang Guangchuan Engineering Consulting Co., Ltd., Hangzhou 310020)
  • Received:2016-11-07 Revised:2016-11-21 Online:2017-10-20 Published:2017-10-29

摘要： 近些年，桩基框架结构堤防在沿海软土地基上开始推广应用，而堤后土方回填是影响该类型堤防的关键环节，但相应的研究很少。依托相关工程，采用Midas gts软件建立三维有限元模型，模拟在各施工阶段堤防的受力变形情况，并结合现场观测数据，探讨数值模拟结果的可靠性，对比分析堤后填土对堤防受力变形的影响，评价软土地基条件下桩基框架结构堤防的优越性。

关键词: 回填土, 软土地基, 桩基框架结构, 堤防, 原位观测, 数值模拟

Abstract: Embankments with pile supported frame structures have been used in the levee construction over marine soft soils. The performance of this type of embankment under the backfill soil load is infrequently investigated. This paper presents the results of “Performance of Embankment with Pile Supported Frame Structure Over Soft Soils”, which was funded by Zhejiang Hydraulic Engineering Research Program. A threedimensional finite element model simulating the staged construction was established by using commercial software MIDAS GTS. The deformation and stress in the frame structure were compared with the construction monitored data. The deformations before and after the soil backfill operation were evaluated. It is concluded that the embankment with pile supported frame structure is a viable solution of the levee construction over marine soft soils.

Key words: Soil Backfills, Soft Soils, Pile Supported Frame Structures, Levees, Geotechnical Instrumentations, Numerical Simulations