Research on the Bearing Capacity and Sustainable Construction of a Vacuum Drainage Pipe Pile

Wei-Kang Lin, Xiao-Wu Tang (), Yuan Zou, Jia-Xin Liang and Ke-Yi Li
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Wei-Kang Lin: Research Center of Coastal and Urban Geotechnical Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
Xiao-Wu Tang: Research Center of Coastal and Urban Geotechnical Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
Yuan Zou: Research Center of Coastal and Urban Geotechnical Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
Jia-Xin Liang: Research Center of Coastal and Urban Geotechnical Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
Ke-Yi Li: Research Center of Coastal and Urban Geotechnical Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China

Sustainability, 2023, vol. 15, issue 9, 1-15

Abstract: The vacuum drainage pipe (VDP) pile is a new type of pipe pile on which the current research is mainly focused on laboratory tests. There is little research on bearing characteristics and carbon emissions in practical engineering. To further explore the bearing capacity and sustainable construction of vacuum drainage pipe piles, static load tests were conducted to investigate the single-pile bearing capacity of ordinary pipe piles and vacuum drainage pipe piles, as well as soil settlement monitoring around the piles. Then, the Q-S curves of the two piles, the pile-side friction resistance under different pile top loads, and the development law of pile end resistance were compared and analyzed. Finally, based on the guidelines of the IPCC, the energy-saving and emission-reduction effects of VDP piles in practical engineering were estimated. The results indicate that, after vacuum consolidation, the VDP pile basically eliminates the phenomenon of soil compaction and does not cause excessive relative displacement of the pile and soil. VDP piles have increased lateral friction resistance, and compared to traditional piles, their ultimate bearing capacity is increased by 17.6%. Compared with traditional methods, the VDP pile method can reduce carbon emissions by 31.4%. This study provides guidance for the production and design of future VDP piles and demonstrates the potential of VDP piles for energy conservation and emission reduction in comparison to traditional methods.

Keywords: pile foundation; sustainable construction; soft soil; compressive bearing capacity; carbon emission (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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