Results 21 to 30 of about 1,218 (262)

Monitoring analysis of influence of extra-large complex deep foundation pit on adjacent environment: a case study of Zhengzhou City, China

open access: yesGeomatics, Natural Hazards & Risk, 2020
Extra-large complex deep foundation pit excavation has an impact on the surrounding environment. The deformation characteristics of deep foundation pits were investigated during excavation, according to the temporal and spatial variations in displacement,
Danqing Song   +5 more
doaj   +1 more source

Numerical Study of Dig Sequence Effects during Large-Scale Excavation

open access: yesApplied Sciences, 2023
The appropriate excavation sequence can improve the overall stability of a foundation pit. In this study, eight schemes were created using FLAC3D to examine the impact of the excavation sequence on a foundation pit by analyzing a deep foundation pit in ...
Danli Li   +4 more
doaj   +1 more source

Research and Application of Anti-floating Schemes of Deep Foundation Pit of Subway for Underwater Excavation and underwater concrete sealing [PDF]

open access: yesE3S Web of Conferences, 2020
To implement deep foundation pit of subway construction with underground continuous wall adopting underwater excavation and waterproofing concrete bottom sealing curtain, the depth of bottom concrete must first meet the anti-floating requirements of the ...
Luo Sheng
doaj   +1 more source

Base deformation’s features during deep foundation pit excavation

open access: yesAcademic journal Industrial Machine Building Civil Engineering, 2020
The problems of estimating the stress-strain state of the foundations during the deep foundation pits installation are considered. The results of finite element calculations in the plane formulation of the stability of the pit walls and the retaining structures' operation under dense urban development are presented.
Mykola Zotsenko, Yuriy Vynnykov
openaire   +1 more source

Analysis of Lateral Displacement Law of Deep Foundation Pit Support in Soft Soil Based on Improved MSD Method

open access: yesAdvances in Civil Engineering, 2021
Foundation pit envelope and foundation pit excavation solution design is a multidisciplinary problem that could be linked to a series of safety issues in the geotechnical engineering of an actual construction project.
Gang Lei, Xiaonan Gong
doaj   +1 more source

Deformation Law of the Diaphragm Wall during Deep Foundation Pit Construction on Lake and Sea Soft Soil in the Yangtze River Delta

open access: yesAdvances in Civil Engineering, 2021
So far, there have been a large number of diaphragm walls in the Yangtze River Delta as engineering examples of deep foundation pit maintenance structures in subway stations, but there is a lack of systematic research and summary on the deformation ...
Yuan Mei   +6 more
doaj   +1 more source

Influences of excavation of deep foundation pits on deformation of adjacent double-line subway tunnels through measurement analysis

open access: yesYantu gongcheng xuebao, 2023
The excavation and unloading of foundation pits will lead to the deformations of the surrounding soil and the adjacent subway tunnels. The excessive deformation will seriously endanger the safe operation of subway tunnels.
GU Xiaowei 1, YI Zihao 2, WANG Zhe 2, CHANG Kuan 2
doaj   +1 more source

Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings

open access: yesRenmin Zhujiang, 2022
With the efficient use of urban space,the construction of new foundation pit projects is becoming more and more difficult,and the research on the excavation deformation of foundation pits and its impact on surrounding buildings is becoming more important.
CHENG Xinyu   +3 more
doaj  

Research on Damage Repair and Reinforcement of Deep Foundation Pit Support Structure Based on Fractal Dimension Theory

open access: yesChemical Engineering Transactions, 2017
Foundation pit engineering refers to the excavation in the ground below the underground space and its supporting support system. The foundation pit support is used to ensure the excavation of the foundation pit, the smooth construction of the foundation ...
Jun Li, Feng Jin, Yongzheng Ma
doaj   +1 more source

Deformation Characteristics of a Deep Subway Foundation Pit in Hard Rock Strata under a Delayed Supporting Condition

open access: yesShock and Vibration, 2023
In this investigation, deformations of a deep foundation pit in hard rock strata, respectively, under delayed and in-time supporting schemes of one-layer transverse reinforced concrete bracings at the top of the foundation pit, one-layer steel bracings ...
Yang Li   +5 more
doaj   +1 more source

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