Zoning design of a deep and large foundation pit adjacent to the Yangtze River in Wuhan

Journals

Title：
Zoning design of a deep and large foundation pit adjacent to the Yangtze River in Wuhan
Author：
Ruifang Wang
Author Affiliation：
Department of Civil Engineering of School of Urban Construction, Wuhan University of Science and Technology, Wuhan, China
Received：Nov.30 2022
Accepted：Jan.30 2023
Published：Feb.6 2023

Abstract

Taking the design of a deep and large foundation pit near the Yangtze River in Wuhan as an example, combining with the complex environment around the foundation pit and considering the development sequence of the construction unit, the work scheme of "zoning design, zoning construction, supporting pile + internal support" is adopted. In order to reduce the influence of foundation pit excavation on adjacent excavation, piles with large diameter and small pile spacing are used as isolation piles. Using 90 deep dewatering Wells and cement mixing pile (local CSM) as water stop curtain, the calculation can meet the requirements of foundation pit dewatering. The existing monitoring data show that the design of the foundation pit is safe, reasonable and economical, which can provide a certain reference for similar projects

Keywords

Complex deep foundation pit, supporting pile + internal support, isolation pile, groundwater treatment, monitoring data

Doi

https://doi.org/10.58396/cmce020103

References

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