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

HUANG Jianhong; YE Shuxiang; CAI Ying; LIN Zhongzhe; LI Zhengtai; LI Xiaobing; FU Hongtao

doi:10.3724/j.gyjzG23061210

Volume 55 Issue 8

Aug. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(8): 242-249

HUANG Jianhong, YE Shuxiang, CAI Ying, LIN Zhongzhe, LI Zhengtai, LI Xiaobing, FU Hongtao. Experimental Research on Effects of Different PVD Arrangements on the Reinforcement Effect of Vacuum Preloading Combined with Heating[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(8): 242-249. doi: 10.3724/j.gyjzG23061210

Citation:

HUANG Jianhong, YE Shuxiang, CAI Ying, LIN Zhongzhe, LI Zhengtai, LI Xiaobing, FU Hongtao. Experimental Research on Effects of Different PVD Arrangements on the Reinforcement Effect of Vacuum Preloading Combined with Heating[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(8): 242-249. doi: 10.3724/j.gyjzG23061210

Citation:

HUANG Jianhong, YE Shuxiang, CAI Ying, LIN Zhongzhe, LI Zhengtai, LI Xiaobing, FU Hongtao. Experimental Research on Effects of Different PVD Arrangements on the Reinforcement Effect of Vacuum Preloading Combined with Heating[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(8): 242-249. doi: 10.3724/j.gyjzG23061210

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

doi: 10.3724/j.gyjzG23061210

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

Received Date: 2023-06-12
Available Online: 2025-10-24

Abstract

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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References(26)

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