Results 51 to 60 of about 292,062 (325)

Additional Stress of Soil and Surface Settlement during Tunnel Shield Construction

open access: yesBuildings, 2023
To study the influence of shield excavation on the surrounding soil, and to control the influence of the shield excavation of the subway tunnel on the surface settlement and the deformation of the surrounding buildings, it is necessary to study the ...
Ying Li   +4 more
doaj   +1 more source

Ground movements due to excavation in clay: physical and analytical models

open access: yes, 2010
In view of the recent catastrophes associated with deep excavations, there is an urgent need to provide vital guidelines on the design of the construction process.

core   +1 more source

Study on the effect of excavation sequence of three-hole shield tunnel on surface settlement and segment deformation

open access: yesScientific Reports, 2023
In order to study the influence of excavation sequence of three-hole parallel shield tunnel on surface settlement and segment convergence, an improved “three-stage analysis method” was proposed to calculate the surface settlement of three-hole parallel ...
You Wang   +4 more
doaj   +1 more source

Efficiency investigation of mitigation effect of isolation piles on tunneling-induced ground settlements

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
In order to study the control efficiency of isolation pile on the settlement of the surface and deep soil, we analyze the implementation method of simulated isolation pile in Plaxis2d, and establish the finite element model of the tunnel and isolation ...
ZHENG Zhenji   +3 more
doaj   +1 more source

Monitoring and Prediction of Ground Surface Settlement in Kunming Urban Area by Building GWO-LSTM Model Based on TS-InSAR

open access: yesApplied Sciences
: Long-term series monitoring of ground surface settlement by remote sensing has become an effective method. Based on TS-InSAR (time series Interferometric Synthetic Aperture Radar) interferometry, this paper proposes a new model based on the Grey Wolf ...
Jianhua Li   +5 more
semanticscholar   +1 more source

Evaluating the effect of EPBM operational parameters on surface settlement in soft ground [PDF]

open access: yesJournal of Geophysics and Engineering, 2020
Abstract The present study investigates the effects of some essential earth pressure balance machine (EPBM) operational parameters, including face, annulus and grout pressures, on ground surface settlement during tunnel excavation. A numerical soil-tunnel-fluid coupled model was developed using the finite difference method (FDM) in ...
Ali Naghi Dehghan   +3 more
openaire   +1 more source

Ground vibration from underground railways: how simplifying assumptions limit prediction accuracy

open access: yes, 2010
Noise and vibration from underground railways is a documented disturbance to individuals living or working near subways. Much work has been done to understand and simulate the dynamic interactions between the train, track, tunnel and soil resulting in ...

core   +1 more source

Field test and numerical simulation of ground settlement in super shallow buried station excavation supported by transverse pipe roof

open access: yesFrontiers in Earth Science, 2023
The pipe roof is an effective means to control the surface settlement during the construction of the super-shallow buried subway station. The transverse pipe roof method can not only reduce the construction work surface, but also improve the construction
Jun Wang   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Ground compaction due to vibrodriving of piles [PDF]

open access: yes, 1996
Civil engineering construction frequently requires the use of piles to carry structural loads to stronger ground strata or to control lateral ground movements. A variety of techniques are available to install piles into the ground. Of central interest to
Bement, R.A.P., Bement, R
core  

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