Results 61 to 70 of about 8,336,956 (337)

Centrifuge modeling of tunneling-induced ground surface settlement in sand

open access: yesUnderground Space, 2019
Stress changes in the soil induced by tunnel excavation may cause excessive ground settlement. However, high-quality experimental data on ground settlement due to tunnel excavation are limited. In this study, centrifuge tests are conducted to investigate
Hu Lu, Jiangwei Shi, Yu Wang, Rong Wang
doaj   +1 more source

Study on the Law of Influence of Seepage Field Anomalies on Displacement Field Induced by Leakage of Enclosure Structure

open access: yesApplied Sciences, 2022
The leakage of an enclosure structure will cause abnormal changes in the seepage flow field, which in turn can lead to the deformation of the enclosure structure and affect the surrounding geotechnical body.
Bingbing Chen   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Bayesian Network-Driven Risk Assessment and Reinforcement Strategy for Shield Tunnel Construction Adjacent to Wall–Pile–Anchor-Supported Foundation Pit

open access: yesBuildings
With the increasing demand for urban rail transit capacity, shield tunneling has become the predominant method for constructing underground metro systems in densely populated cities.
Yuran Lu, Bin Zhu, Hongsheng Qiu
doaj   +1 more source

An Investigation on Longitudinal Surface Subsidence Deformation of Large-Span Undercut Metro Tunnel

open access: yesFrontiers in Earth Science, 2022
Underground excavation techniques are frequently used in subway stations during the construction of urban rail transit. The current study analyzes and investigates the surface settlement and deformation laws of large-span shallow buried underground ...
Nan Yan   +16 more
doaj   +1 more source

Investigation on the Surface Settlement of Curved Shield Construction in Sandy Stratum with Laboratory Model Test

open access: yesGeotechnical and Geological Engineering, 2021
According to the existing practical engineering data, the settlement curve of shield tunnel with small curvature radius is obviously different from that of straight tunnel, so using Peck formula to forecast the surface settlement is not applicable.
P. Xu, Danhui Xi
semanticscholar   +1 more source

Natural environment and human settlement in later prehistoric central Europe [PDF]

open access: yes, 2004
This work analyses the adaptive relationship between early farming settlement and natural environment in Central Europe between 3500 (cal.) BC and AD 400.
Albert, Bruce Michael Worthington
core  

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

Research on historical deformation and rock layer water content variation in large open-pit mining areas based on SBAS and MatDEM

open access: yesFrontiers in Earth Science
In order to study the characteristics of settlement and deformation evolution of large open pit to underground mine quarries in China, and to analyse the changing law of volumetric water content of overburden rock layers at different mining stages. Based
Jiabo Geng   +8 more
doaj   +1 more source

Test Study on the Influence of Foundation Pit Excavation on the Surface Settlement of Sandy Soil Natural Foundation of Adjacent Buildings

open access: yesBuildings, 2023
The excavation of a foundation pit will break the original stress balance and affect the surface settlement of the natural foundation of adjacent buildings, so deformation control is very important.
Jiachao Dong   +3 more
doaj   +1 more source

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