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山东大学学报 (工学版) ›› 2024, Vol. 54 ›› Issue (4): 106-114.doi: 10.6040/j.issn.1672-3961.0.2023.183

• 土木工程 • 上一篇    

基于MatDEM的松散地基喷浆加固浆液扩散规律

郭静1,赵振华2,马梦媛3,史长远3,姚占勇3,赵秋红2,姚凯3*   

  1. 1.济南城市建设集团有限公司, 山东 济南 250014;2.济南黄河路桥建设集团有限公司, 山东 济南 250013;3.山东大学齐鲁交通学院, 山东 济南 250002
  • 发布日期:2024-08-20
  • 作者简介:郭静(1987— ),男,山东临沂人,高级工程师,主要研究方向为城市道路与交通工程施工技术. E-mail: 15615616118@163.com. *通信作者简介:姚凯(1988— ),男,山东临沂人,教授,硕士生导师,博士,主要研究方向为地基处理. E-mail: yaokai@sdu.edu.cn
  • 基金资助:
    山东省自然科学基金资助项目(ZR2021QE254);山东省优秀青年科学基金资助项目(海外)(2022HWYQ-016);教育部“春晖计划”合作科研资助项目(HZKY20220470)

Grout diffusion law for grouting reinforcement of loose foundation based on MatDEM

GUO Jing1, ZHAO Zhenhua2, MA Mengyuan3, SHI Changyuan3, YAO Zhanyong3, ZHAO Qiuhong2, YAO Kai3*   

  1. 1. Jinan Urban Construction Group Co., Ltd., Jinan 250014, Shandong, China;
    2. Jinan Yellow River Road and Bridge Construction Group Co., Ltd., Jinan 250013, Shandong, China;
    3. School of Qilu Transportation, Shandong University, Jinan 250002, Shandong, China
  • Published:2024-08-20

摘要: 为分析松散地基喷浆加固过程中浆液扩散规律,借助MatDEM软件生成模拟土层,基于孔隙密度流原理实现喷浆过程可视化,生成土体颗粒位移场。从现有成桩直径预测公式出发,分析基于极限侵蚀距离的成桩直径预测公式的可靠性,基于模拟结果,通过分析喷浆压力、颗粒粒径等对修正参数的影响,对成桩直径预测公式进行修正,将现场试验中双管法旋喷喷浆施工参数及原位土体力学参数带入修正后成桩直径预测公式计算,与现场试验桩体开挖后实测直径进行对比,验证了修正公式的可靠性。

关键词: MatDEM, 高压喷浆, 孔隙密度流, 基础加固, 公式修正

中图分类号: 

  • TV543+1
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