不同排水板布置形式对真空预压联合加热法加固效果影响的试验研究

黄建鸿; 叶舒翔; 蔡瑛; 林忠哲; 李正泰; 李校兵; 符洪涛

doi:10.3724/j.gyjzG23061210

不同排水板布置形式对真空预压联合加热法加固效果影响的试验研究

doi: 10.3724/j.gyjzG23061210

黄建鸿¹,
叶舒翔¹,
蔡瑛^2,3,4,5,
林忠哲¹,
李正泰²,
李校兵^2,3,4,5,
符洪涛^2,3,4,5

1. 温州市教育基建中心, 浙江温州 325000;
2. 温州大学建筑与土木工程学院, 浙江温州 325035;
3. 浙江省软弱土地基与海涂围垦工程技术重点实验室, 浙江温州 325035;
4. 浙江省海涂围垦及其生态保护协同创新中心, 浙江温州 325035;
5. 滨海软土地基防灾减灾技术浙江省工程研究中心, 浙江温州 325035

详细信息

作者简介:
黄建鸿,高级工程师,主要从事软土地基处理工作。电子信箱:2722230437@qq.com

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出版历程
- 收稿日期: 2023-06-12
- 网络出版日期: 2025-10-24

Experimental Research on Effects of Different PVD Arrangements on the Reinforcement Effect of Vacuum Preloading Combined with Heating

1. Wenzhou Education Infrastructure Center, Wenzhou 325000, China;
2. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou 325035, China;
3. Key Laboratory of Soft Soil Foundation and Coastal Reclamation Engineering Technology in Zhejiang Province, Wenzhou 325035, China;
4. Zhejiang Province Coastal Reclamation and Ecological Protection Collaborative Innovation Center, Wenzhou 325035, China;
5. Zhejiang Engineering Research Center for Disaster Prevention and Reduction Technology of Coastal Soft Soil Foundation, Wenzhou 325035, China

摘要

摘要: 真空预压法在处理工程废泥浆时,存在排水固结速率慢、后期处理效果不佳等情况。真空预压联合加热法是近些年来国内外研究学者对真空预压法的创新改进,但相关研究仍处于探索阶段。对此利用自制的温控模型试验装置,设计并开展了不同排水板布置形式下真空预压联合加热法的对比试验,分析了工程废泥浆的温度、排水量、土体表面沉降和孔压等参数的发展趋势。结果表明,排水板采用正三角形布置形式可提高土体的固结效果,土体平均固结度分别比正方形和正六边形布置形式提高了5.5%、8%;其土体累计排水量和孔压消散量分别比正六边形布置形式提高了15%、22.04%。
- 工程废泥浆 /
- 排水固结 /
- 真空预压联合加热法 /
- 布置形式 /
- 沉降
Abstract: The vacuum preloading method, used by the Zhejiang Engineering Research Center for Disaster Prevention and Reduction of Coastal Soft Soil Foundation, faces issues such as a slow drainage consolidation rate and poor post-treatment effect when treating engineering waste mud. The vacuum preloading combined with heating method is an innovative improvement on the conventional vacuum preloading method, explored by domestic and international researchers in recent years, but related research remains at the exploratory stage. A self-made temperature-controlled model test device was used to design and conduct comparative experiments on the vacuum preloading combined with heating method under different prefabricated vertical drain (PVD) arrangements. The development trends of parameters such as temperature, drainage volume, soil surface settlement, and pore pressure in engineering waste mud under different PVD arrangements were analyzed in detail. The results showed that, compared with the hexagonal layout, the equilateral triangle layout improved the consolidation effect of soil, achieving consolidation degrees 5.5% and 8% higher than those of the square and hexagonal layouts, respectively; compared with the regular hexagonal layout, its cumulative soil displacement and pore pressure dissipation increased 15% and 22.04%, respectively. The findings of this experiment provide an important reference for applying the vacuum preloading combined with heating method in treating engineering waste mud, offering significant practical value for engineering applications.
- engineering waste mud /
- drainage consolidation /
- vacuum preloading combined with heating method /
- arrangement form /
- settlement

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