院报 ›› 2024, Vol. 41 ›› Issue (9): 106-113.DOI: 10.11988/ckyyb.20230536

• 岩土工程 • 上一篇    下一篇

基于分形理论的多孔介质渗透注浆机制

侯晓萍1,2(), 莫浩1, 赵卫全3, 黄勇4   

  1. 1 西北农林科技大学 水利与建筑工程学院,陕西 杨凌 712100
    2 西北农林科技大学 旱区农业水土工程教育部重点实验室,陕西 杨凌 712100
    3 中国水利水电科学研究院,北京 100038
    4 广东省水利电力勘测设计研究院有限公司,广州 510635
  • 收稿日期:2023-05-17 修回日期:2023-08-15 出版日期:2024-09-01 发布日期:2024-09-20
  • 作者简介:

    侯晓萍(1989-),女,山西运城,讲师,博士,主要从事水工结构及岩土工程数值仿真方面的研究。E-mail:

  • 基金资助:
    中国水利水电科学研究院研发专项(EM0145B022021)

Infiltration Grouting Mechanism in Porous Media Based on Fractal Theory

HOU Xiao-ping1,2(), MO Hao1, ZHAO Wei-quan3, HUANG Yong4   

  1. 1 College of Water Resources and Architectural Engineering, Northwest A & F University,Yangling 712100,China
    2 Key Laboratory of Ministry of Education on Agricultural Soil and Water Engineering in Arid andSemiarid Areas, Northwest A & F University, Yangling 712100, China
    3 China Institute of Water Resourcesand Hydropower Research, Beijing 100038, China
    4 Guangdong Hydropower Planning & Design Institute,Guangdong 510635, China
  • Received:2023-05-17 Revised:2023-08-15 Published:2024-09-01 Online:2024-09-20

摘要:

为研究宾汉姆浆液在多孔介质地层的渗透注浆机制,基于分形理论、毛细管模型和宾汉姆浆液流变方程,推导了基于分形理论的宾汉姆浆液渗透扩散表观速度公式和多孔介质渗透注浆球形扩散公式;利用已有的理论模型和室内渗透注浆试验成果对推导的理论公式进行了对比、分析和验证。研究结果表明:与传统的宾汉姆浆液渗透注浆扩散公式相比,基于分形理论的多孔介质渗透注浆扩散公式获得的浆液扩散半径更接近于室内试验成果。该研究成果可为实际多孔介质地层注浆工程提供一定的理论支撑。

关键词: 多孔介质, 宾汉姆浆液, 分形理论, 渗透注浆, 表观速度, 扩散距离

Abstract:

To investigate the infiltration grouting mechanism of Bingham fluid in porous media, we derived formulas for calculating the apparent velocity of infiltration diffusion and the spherical infiltration grouting diffusion distance of Bingham fluid in porous media based on the fractal theory, the capillary model, and the rheological equation of Bingham fluid. We compared and validated the theoretical formulas against existing models and laboratory grouting tests. The results indicate that the diffusion radius of the grout calculated using the fractal theory-based formulas aligns more closely with experimental data compared to conventional Bingham fluid infiltration grouting formulas. These findings offer valuable theoretical support for practical grouting applications in porous media strata.

Key words: porous media, Bingham fluid, fractal theory, infiltration grouting, apparent velocity, diffusion distance

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