| 考虑扩散路径的宾汉姆流体渗透注浆机制 |
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| 引用本文： | 路乔,杨智超,杨志全,于荣霞,朱颖彦,杨溢,张碧华,王仁超,方迎潮,余东亮,刘浩,苏建坤.考虑扩散路径的宾汉姆流体渗透注浆机制[J].岩土力学,2022,43(2):385-394. |
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| 作者姓名： | 路乔 杨智超 杨志全 于荣霞 朱颖彦 杨溢 张碧华 王仁超 方迎潮 余东亮 刘浩 苏建坤 |
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| 作者单位： | 1. 昆明理工大学 公共安全与应急管理学院，云南 昆明 650093；2. 昆明理工大学 应急管理部地质灾害风险防控与应急减灾重点实验室，
云南 昆明 650093；3. 昆明理工大学 云南省高校高烈度地震山区交通走廊工程地质病害早期快速判识与防控重点实验室，云南 昆明 650093；
4. 中国科学院水利部成都山地灾害与环境研究所，四川 成都 610041；5. 北京菲博泰光电科技有限公司，北京 100083；
6. 电子科技大学 计算机科学与工程学院，四川 成都 611731；7. 国家管网集团西南管道有限责任公司，四川 成都 610041；
8. 云南航天工程物探检测股份有限公司，云南 昆明 650217 |
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| 基金项目： | 国家自然科学基金(No.41861134008);云南省阿瑟夫·汉院士工作站(No.202105AF150076);云南省重点研发计划(No.202003AC100002);云南省基础研究计划面上项目(No.202001AT070043)。 |
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| 摘 要： | 浆液在多孔介质中的扩散路径对渗透扩散范围和注浆效果具有非常重要的影响。采用理论分析，以分形特征与宾汉姆流体在多孔介质中的渗流运动方程为基础，揭示了考虑扩散路径的宾汉姆流体渗透注浆机制，并利用团队前期开展的渗透注浆试验对其进行了验证。分析了多孔介质孔隙率、宾汉姆水泥浆液水灰比、多孔介质渗透系数、注浆压力、地下水压力等对扩散半径的影响变化规律。同时，基于Comsol Multiphysics平台，采用计算机编程技术二次开发得到了考虑扩散路径的宾汉姆流体渗透注浆机制的渗透注浆三维数值模拟程序，并以此开展了宾汉姆水泥浆液在多孔介质中渗透扩散形态效果的数值模拟。研究结果表明：与不考虑扩散路径的宾汉姆流体渗透注浆球形扩散公式获得的扩散半径理论计算值相比，采用考虑扩散路径的宾汉姆流体渗透注浆机制得到的扩散半径理论计算值更接近试验值。该研究成果可为实践注浆工程提供一定的理论支撑。
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| 关 键 词： | 多孔介质 扩散路径 宾汉姆流体 渗透注浆 |
| 收稿时间： | 2021-08-05 |
| 修稿时间： | 2021-12-06 |
Penetration grouting mechanism of Binham fluid considering diffusion paths |
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| LU Qiao,YANG Zhi-chao,YANG Zhi-quan,YU Rong-xia,ZHU Ying-yan,YANG Yi,ZHANG Bi-hua,WANG Ren-chao,FANG Ying-chao,YU Dong-liang,LIU Hao,SU Jian-kun.Penetration grouting mechanism of Binham fluid considering diffusion paths[J].Rock and Soil Mechanics,2022,43(2):385-394. |
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| Authors: | LU Qiao YANG Zhi-chao YANG Zhi-quan YU Rong-xia ZHU Ying-yan YANG Yi ZHANG Bi-hua WANG Ren-chao FANG Ying-chao YU Dong-liang LIU Hao SU Jian-kun |
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| Institution: | (Faculty of Public Safety and Emergency Management,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Key Laboratory of Geological Disaster Risk Prevention and Control and Emergency Disaster Reduction of Ministry of Emergency Management of the People's Republic of China,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Key Laboratory of Early Rapid Identification,Prevention and Control of Geological Diseases in Traffic Corridor of High Intensity Earthquake Mountainous Area of Yunnan Province,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Beijing Fibote Photoelectric Technology Co.,Ltd.,Beijing 100083,China;School of Computer Science and Engineering,University of Electronic Science and Technology of China,Chengdu,Sichuan 611731,China;PipeChina Southwest Pipeline Company,Chengdu,Sichuan 610041,China;Yunnan Aerospace Engineering Geophysical Detecting Co.,Ltd.,Kunming,Yunnan 650217,China) |
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| Abstract: | The diffusion path of grout in porous media has a significant effect on the diffusion range and grouting effect. Based on the fractal characteristics and the seepage motion equation of Bingham fluid in porous media, the penetration grouting mechanism of Bingham fluid considering the diffusion path was revealed through theoretical analysis, and verified by the penetration grouting test carried out by the team in the previous studies. The effects of porosity of porous media, water-cement ratio of Bingham cement slurry,permeability coefficient of porous media, grouting pressure and groundwater pressure on diffusion radius are analyzed. In addition, a 3D numerical simulation program of penetration grouting mechanism of Bingham fluid considering the diffusion path was developed through Comsol Multiphysics platform. Then the penetration and diffusion morphology effect of Bingham cement grout in porous media was investigated by the developed simulation program. The results show that the theoretical calculation value of diffusion radius obtained by using the Bingham fluid penetration grouting mechanism considering the diffusion path is closer to the experimental value than that obtained by the spherical diffusion formula of Bingham fluid penetration grouting without considering the diffusion path. The results can provide theoretical support for practical grouting engineering. |
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| Keywords: | porous media diffusion path Bingham fluid penetration grouting |
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