Mechanism of Bingham fluid permeation and diffusion based on pulse injection

ZHANG Cong; LIANG Jing-wei; ZHANG Jian; YANG Jun-sheng; ZHANG Gui-jin; YE Xin-tian

doi:10.16285/j.rsm.2016.2428

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Mechanism of Bingham fluid permeation and diffusion based on pulse injection

更新时间：2026-06-25

- Mechanism of Bingham fluid permeation and diffusion based on pulse injection
- Vol. 39, Issue 8, Pages: 2740-2746(2018)
- 作者机构：
  
  1. 中南大学土木工程学院,湖南,长沙,410075
  2. 湖南省水利水电科学研究院,湖南,长沙,410007
  3. 河海大学土木与交通学院,江苏,南京,210098
  4. 长沙理工大学水利学院,湖南,长沙,410114
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.2428
  CLC： TU457
- Online First：02 September 2018，
  
  Published：2018
- 稿件说明：
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ZHANG Cong, LIANG Jing-wei, ZHANG Jian, et al. Mechanism of Bingham fluid permeation and diffusion based on pulse injection[J]. 2018, 39(8): 2740-2746.
DOI：

ZHANG Cong, LIANG Jing-wei, ZHANG Jian, et al. Mechanism of Bingham fluid permeation and diffusion based on pulse injection[J]. 2018, 39(8): 2740-2746. DOI： 10.16285/j.rsm.2016.2428.

摘要

脉动注浆虽已在注浆防渗加固工程中得到推广应用，但浆液在脉动压力下的渗透扩散机制却鲜有报道，导致理论远滞后于工程实践。以宾汉流体流变方程、渗流方程及颗粒沉积理论为基础，推导了脉动压力下宾汉流体的渗透扩散理论计算公式，分析了脉动注浆参数对浆液扩散距离的影响，并通过室内注浆模拟试验对其进行了验证。结果表明，脉动压力下宾汉流体渗透注浆扩散理论计算值与试验实测值间存在一定误差，但能满足工程要求，可用于指导工程施工。随着脉动注浆连续时间的增长或地层初始孔隙率的增大，浆液扩散距离随之增大，而随着脉动注浆间隔时间的增长或地层初始孔隙率的减小，浆液扩散距离随之减小，实际注浆工程中为确保有效的浆液扩散距离，宜根据岩土体孔隙率合理地调节脉动连续时间和脉动间隔时间。研究成果可为脉动注浆理论研究提供借鉴，为实际施工提供理论指导。

Abstract

Pulsating grouting has been widely used in seepage prevention and reinforcement grouting and engineering

but the mechanism of infiltration grouting is not clear

which impairs theory development and current theory could not guide engineering practice. Based on the Bingham fluid rheological equation

the seepage equation

and the particle deposition theory

the infiltration grouting theory of Bingham fluid under pulsating pressure is deduced. Also

the effect of pulsating grouting parameters on slurry diffusion range is analyzed

and it is verified by the self-made indoor experimental device. The results show that there is an error between the calculated value based on the theory and the value measured in the test

but it can meet engineering requirements and can be used to guide project construction. The slurry diffusion range increases with the increase of grouting time and the initial porosity of the formation

and the slurry diffusion range decreases with the increase of grouting interval time and the decrease of the initial porosity of the formation. Therefore

it is necessary to adjust pulsation grouting parameters according to initial porosity of the formation to ensure the effective slurry diffusion range in grouting engineering. The research results can provide references for the study of theory and guidance for practical construction.

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