Mesomechanical simulation of grouting in weak strata

YUAN Jing-qiang; CHEN Wei-zhong; TAN Xian-jun; WANG Hui

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Mesomechanical simulation of grouting in weak strata

更新时间：2026-06-25

- Mesomechanical simulation of grouting in weak strata
- Vol. 32, Issue S2, (2011)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
  2. 山东大学岩土与结构工程中心,济南,250061
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU470
- Online First：26 August 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
YUAN Jing-qiang, CHEN Wei-zhong, TAN Xian-jun, et al. Mesomechanical simulation of grouting in weak strata[J]. 2011, 32(S2).
DOI：

YUAN Jing-qiang, CHEN Wei-zhong, TAN Xian-jun, et al. Mesomechanical simulation of grouting in weak strata[J]. 2011, 32(S2). DOI：

摘要

基于散体介质理论的颗粒流方法，运用PFC2D软件对软弱地层注浆过程进行了细观力学模拟，研究了注浆压力、注浆时间、渗透性质及颗粒黏结强度对浆液扩散半径和注浆类型的影响规律。采用PFC2D软件内嵌的FISH语言，定义了提取特定位置流体域内压力值的函数，研究了浆液扩散的分布特征，考虑浆液黏度的时变性对浆液扩散范围的影响，定义有效注浆半径对其进行修正，得到的浆液扩散规律与球形扩散理论较为一致。结合工程实例进行了注浆细观力学数值模拟，并提出了科学的注浆方案，在现场应用后取得了较好的堵水加固效果

Abstract

Based on the theory of particle flow

the process of grouting in weak strata is mesomechanically simulated; and the influence of grouting pressure

grouting time

permeability coefficient and particle bond strength on grouting diffusion radius and grouting type is concerned. By using FISH language embedded in the Particle Flow Code in 2 Dimensions(DFC2D)

a function that can extract the pressure value of fluid domain at specific position is established; and the diffusion distribution of grouts is studied. Considering time-dependent behavior of the grouts and nonuniformity of the stratum

the effective grouting radius is defined to modify these factors. The simulated results are consistent with Maag’s formula. The mesomechanical simulation of grouting has been conducted with a practical engineering example. Based on the results of mesomechanical simulation

a scientific grouting scheme is proposed. And the application to site has achieved good sealing and strengthening effect.

关键词

Keywords

references

Views

1137

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of grouting on mechanical properties of soil nailing

Research on numerical simulation of sequential fragmentation mechanism of shield machine cutters

Numerical simulation of mesomechanical characteristics of creep demage evolution for Jingping marble

Meso-direct-shear test of sand based on digital image correlation method and its PFC numerical simulation

Analysis of relationship between particle mesoscopic and macroscopic mechanical parameters of cohesive materials

Related Author

ZHANG Guang-xing

GUAN Lin-bo

XU Zi-jun

TAN Qing

XIA Yi-min

YI Nian-en

ZHU Yi

LIU Chuan

Related Institution

Department of Civil Engineering, Tongji Zhejiang College

School of Mechanical Engineering, Xiangtan University

State Key Laboratory of High Performance Complex Manufacturing, Central South University

School of Mechanical and Electrical Engineering, Central South University

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University

AI问答

⁰