土工基础

›› 2019, Vol. 33 ›› Issue (3): 335-338.

• 工程实录 • 上一篇    下一篇

基于土拱效应的挂板式斜插桩板墙板后土压力计算方法研究

段自侠1，屈俊童2，字晓雷2，雷 真2，屈林河3   

  1. （1.云南永筑建设勘察设计有限公司，云南保山 678000；2.云南大学，昆明 650504；3.云南省城乡规划院，昆明 650504）
  • 收稿日期:2018-08-24 修回日期:2018-09-03 出版日期:2019-06-20 发布日期:2019-08-16
  • 作者简介:段自侠（1990-），男，硕士研究生，研究方向为岩土工程。
  • 基金资助:

    云南省应用基础研究青年计划（2015FD005）；昆明市科学基金项目（2015-1-G-01089）；云南大学“东陆中青年骨干教师”培养计划.

Estimation of Earth Pressures Behind a Soldier Pile and Lagging with Inclinedly Inserted Panel Wall Considering the Soil Arching Effect

DUAN Zixia1，　QU Juntong2，　ZI Xiaolei2，　LEI Zhen2，　QU Linhe3   

  1. （1.Yunnan Yongzhu Construction Survey and Design Co., Ltd. Baoshan Yunnan 678000；
    2.Yunnan University，Kunming 650504；3.Yunnan Urban and Rural Planning Institute，Kunming 650504）
  • Received:2018-08-24 Revised:2018-09-03 Online:2019-06-20 Published:2019-08-16

摘要： 斜插式桩板墙在形式上具有一定的特殊性，其墙后土体在一定范围内可以发生自由变形，且墙后水体与外界完全连通,这在一定程度上影响了支护结构后方土压力的分布形式和桩后土拱的大小及位置。通过考虑土拱效应的卸荷拱法推导出了斜插式桩板墙板后土压力计算公式，将其公式所得理论计算值与模型试验实测值、ABAQUS分析值进行比对，得出所推导的斜插式桩板墙板后土压力公式对于该新型支挡结构在实际工程中的设计计算有较好的参考价值。

关键词: 挂板式斜插桩板墙, 土压力, 计算公式

Abstract: The soldier pile and lagging with inclinedly inserted panel wall has a special configuration since the soil behind the wall can deform freely and the drainage path behind the wall is connected to the ambient environment. Therefore, the earth pressure distribution, magnitude and the soil arching behind the retaining wall are affected by its unique configuration. This paper presents the earth pressure estimation formula for the soldier pile and lagging with inclinedly inserted panel wall considering the soil arching effect. The earth pressures obtained by the recommended formula, physical model tests, and numerical analysis results by AQAQUS finite element analysis method are compared. It is concluded that the proposed formula can fairly estimate the earth pressure on this new retaining structure type.

Key words: Soldier Pile and Lagging with Inclinedly Inserted Panel Wall, Earth Pressures, Estimation Formulas