New Method for Calculating Soil Pressure on Shallow Underground Structures in Layered Soil

To calculate the surrounding soil pressure applied to shallow underground structures in layered soils, a new calculation method suitable for shallow underground works in layered soil is proposed by introducing the horizontal slice method (HSM). Through comparison with traditional methods and measure...

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Vydáno v:Geotechnical and geological engineering Ročník 42; číslo 7; s. 5731 - 5752
Hlavní autoři: Pan, Yingdong, Zhou, Xiaojun, Han, Shi, Zhang, Lu, Cui, Pengbo
Médium: Journal Article
Jazyk:angličtina
Vydáno: Cham Springer International Publishing 01.09.2024
Springer Nature B.V
Témata:
Civil Engineering
Cohesion
Depth
Earth and Environmental Science
Earth pressure
Earth Sciences
Equivalence
Friction
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Internal friction
Lateral pressure
Lateral stress
Layered soils
Original Paper
Pressure
Railway tunnels
Slice method
Soil
Soil layers
Soil stresses
Soils
Terrestrial Pollution
Underground railways
Underground structures
Vertical distribution
Waste Management/Waste Technology
Shallow underground structure
Surrounding soil pressure
Theoretical calculation
Layered soil
Horizontal slice method
ISSN:0960-3182, 1573-1529
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Shrnutí:To calculate the surrounding soil pressure applied to shallow underground structures in layered soils, a new calculation method suitable for shallow underground works in layered soil is proposed by introducing the horizontal slice method (HSM). Through comparison with traditional methods and measured data, the rationality and accuracy of the proposed method are demonstrated. Model parameters, model assumptions, and limitations of the proposed method are also discussed. The research results find that the vertical soil pressure obtained from the proposed method is close to the results of Bierbaum’s theory and method in the Chinese “ Code for Design of Railway Tunnel ”, all showing a linear growth trend, but the lateral earth pressure derived from the proposed method shows a nonlinear distribution. The vertical pressure is linearly positively correlated with internal friction angle, cohesion, and burial depth, while it is linearly negatively correlated with the equivalent friction angle. The lateral earth pressure decreases with an increase in the internal friction angle and cohesion at the same depth, while it increases with an increasing equivalent friction angle. For layered soil, lateral stress undergoes abrupt changes of different degrees at the soil layer boundary and the burial depth boundary.
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ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-024-02856-8