土工基础

土工基础 ›› 2022, Vol. 36 ›› Issue (1): 1-4.

• 工程实录 •    下一篇

对撑式排桩支护体系的结构分析和优化设计

廖镜旺，刘川顺，刘 勇   

  1. （武汉大学水资源与水电工程国家重点实验室，武汉 430072）
  • 收稿日期:2020-10-02 修回日期:2020-10-16 出版日期:2022-02-28 发布日期:2022-03-09
  • 通讯作者: 刘川顺（1963-），男，教授，研究方向为水工结构与岩土工程。
  • 作者简介:廖镜旺（1996-），男，硕士研究生，研究方向为水工结构设计与加固。
  • 基金资助:
    国家自然科学基金（51879203）

Structure Analysis and Optimum Design of Soldier Pile System with Cross Bracing as a Deep Excavation Supporting System

LIAO Jingwang，LIU Chuanshun，LIU Yong   

  1. (State Key Laboratory of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072)
  • Received:2020-10-02 Revised:2020-10-16 Online:2022-02-28 Published:2022-03-09

摘要： 对撑式单排混凝土灌注桩适合在狭长型深基坑的开挖支护，该支护排桩的桩距、嵌固深度、支撑水平间距是影响支护工程安全可靠性和工程投资的主要工程设计参数。以御江半岛排水涵基坑支护工程为例，运用FLAC3D有限元软件，计算分析不同方案下排桩的变形、稳定、弯矩变化规律，绘制了灌注桩设计参数与位移、弯矩关系曲线簇图，为同类工程快速拟定初步设计方案提供参考。


关键词: 城市排水工程, 深基坑, 对撑式单排桩支护, FLAC3D

Abstract: The cross braced single row reinforced concrete soldier pile is suitable for the support of deep excavation with the narrow and long geometry. The soldier pile spacing, embedment depth and the horizontal distance of cross bracing are the main engineering design parameters that affect the safety, reliability, and construction cost of the supporting system. The Yujiang Peninsula drainage culvert project was used as an example for the analysis. In the analysis the FLAC3D software was used to analyze the deformation, force and stability of soldier piles under different conditions. The diagram of displacement and bending moment change along the soldier pile could be developed.

Key words: municipal sewer engineering, deep excavation, soldier pile with cross bracing, FLAC3D

中图分类号: