Study on Deformation Influence of Deep Foundation Pit Pile-Anchor Supporting System Nearby Metro Structure

Abstract:

In the big cities, any construction nearby the metro structure become critical to the safety of the metro,especially for deep foundation pit engineering.In such case,Pile-anchor supporting system is normally used, however different deformation shape of the supporting wall will bring different deformation of the metro structure.This paper analysed the relations between the pile-anchor supporting system and the nearby metro structures and stated how to control the nearby metro structure deformation through the design of the Pile-anchor supporting system.The analysis showed the following conclusions:If the nearby metro structure is closer to the ground surface, it will be more sensitive to the deformation of the piles-anchor system;Shape 1 & 2 are better to control the metro structure deformation,Shape 3 will result bigger settlement;the metro structure above and in the middle of the foundation bottom level are very much influenced by the deformation of the piles;If the deformation of metro structure exceeds the allowable value, other measures should be considered.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 1190-1194
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.1190
• Online since: September 2014
• Authors: Hua Peng*, Xiao Qi Xiao, Zhi Yong Dong
• Keywords: Deep Foundation Pit, Deformation, Metro Structure, Pile-Anchor Supporting System

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