Comparative analysis of FLAC3D numerical simulations and field test of composite cement-soil nailing wall retaining

ZHANG Shang-gen

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Comparative analysis of FLAC3D numerical simulations and field test of composite cement-soil nailing wall retaining

更新时间：2026-06-25

- Comparative analysis of FLAC3D numerical simulations and field test of composite cement-soil nailing wall retaining
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  解放军理工大学国防与人防工程系,江苏,南京,210007
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU470
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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ZHANG Shang-gen. Comparative analysis of FLAC3D numerical simulations and field test of composite cement-soil nailing wall retaining[J]. 2008, 29(S1).
DOI：

ZHANG Shang-gen. Comparative analysis of FLAC3D numerical simulations and field test of composite cement-soil nailing wall retaining[J]. 2008, 29(S1). DOI：

摘要

针对深基坑复合土钉墙支护的特点，运用FLAC3D软件进行深基坑开挖与土钉支护过程的数值模拟，计算中采用摩尔-库仑弹塑性模型，接触面运用接触单元来模拟土体与土钉之间的相互作用。通过计算得到了基坑不同开挖及土钉支护过程中土钉轴力沿钉长分布、墙后土体深层水平位移、周围地表沉降、坑底隆起及潜在滑动面等变化情况，并与实测结果比较发现二者吻合较好，计算结果对工程施工和设计具有一定的指导意义。同时说明所采用的FLAC3D计算模型和分析方法是可靠的，能够满足工程的精度要求，能够较好地运用于实际工程中的分析与预测。

Abstract

In accordance with composite soil nailing technology for deep excavation

the FLAC3D is used to simulate the process of construction by composite cement-soil nailing wall. During the simulation Mohr-Coulomb model is used and contact elements are applied to the interfaces between the soil nailing and soil. This simulation offers the axial force of soil nailing along nails length distribution

the horizontal displacements of soil

the settlements of ground

the uplifts in the bottom of the pit and the potential slip surface foundation pit in every step. The comparative results show that the FLAC3D results are basically consistent with data of field test. The FLAC3D results are worth use for reference in practical applications and design too. Furthermore

the agreement shows that FLAC3D model and analytical method are reliable. And the results of FLAC3D numerical simulations can satisfy the need of engineering

so it can be well applied to analyze and predict practical engineering.

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