Design and practice of underground space development of existing historical buildings in soft soils

WANG Weidong; HU Yun; SHENG Jian; XU Zhonghua

doi:10.11779/CJGE20221081

Volume 45 Issue 12

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Chinese Journal of Geotechnical Engineering > 2023 > 45(12): 2445-2453. > DOI: 10.11779/CJGE20221081

WANG Weidong, HU Yun, SHENG Jian, XU Zhonghua. Design and practice of underground space development of existing historical buildings in soft soils[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(12): 2445-2453. DOI: 10.11779/CJGE20221081

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Design and practice of underground space development of existing historical buildings in soft soils

WANG Weidong^{1, 2,},
HU Yun^{2, 3, ,},
SHENG Jian^{2, 3},
XU Zhonghua^{2, 3}

1.
Arcplus Group PLC, Shanghai 200002, China
2.
Shanghai Engineering Research Center of Safety Control for Facilities Adjacent to Deep Excavations, Shanghai 200002, China
3.
Shanghai Underground Space Engineering Design & Research Institute, East China Architecture Design & Research Institute Co., Ltd., Shanghai 200011, China

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Received Date: August 31, 2022
Available Online: April 17, 2023

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Abstract

Abstract

A three-storey basement has been newly constructed underneath a century-old historical building in Shanghai, which is close to a cultural protection building at three sides. In view of various difficult factors encountered such as the protection requirements, the soft soil foundation, the working space and other factors, a complete development strategy for underground space is adopted. By reciprocatively translating the historical buildings together with excavating downwards, the overall development of the underground space of large masonry buildings and the protection of historical buildings are realized. The strip foundations of the building are reinforced using low-clearance anchor static pressure piles and polyester grouting to reduce building settlement during construction. Based on the successful implementation of the project, new challenges, key techniques and their effects with regard to underground space development underneath existing cultural protection and historical buildings in soft soils are presented.

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