The determination of the coefficient of static earth pressure through the flat dilatometer test in Xi’an loess areas

2013 ◽  
Author(s):  
Bin Zhi ◽  
Xiaoguang Feng
Keyword(s):  
Earth Pressure ◽  
Flat Dilatometer Test

Exact determination of gravity stresses in finite elastic slopes: Part I. Theoretical considerations

1983 ◽  
Vol 20 (1) ◽  
pp. 47-54 ◽  
Author(s):  
V. Silvestri ◽  
C. Tabib
Keyword(s):  
Plane Strain ◽  
Half Plane ◽  
Inclination Angle ◽  
Complex Variable ◽  
Earth Pressure ◽  
Exact Distributions ◽  
Exact Determination ◽  
Upper Half Plane ◽  
Theoretical Considerations

The exact distributions of gravity stresses are obtained within slopes of finite height inclined at various angles, −β (β = π/2, π/3, π/4, π/6, and π/8), to the horizontal. The solutions are obtained by application of the theory of a complex variable. In homogeneous, isotropic, and linearly elastic slopes under plane strain conditions, the gravity stresses are independent of Young's modulus and are a function of (a) the coordinates, (b) the height, (c) the inclination angle, (d) Poisson's ratio or the coefficient of earth pressure at rest, and (e) the volumetric weight. Conformal applications that transform the planes of the various slopes studied onto the upper half-plane are analytically obtained. These solutions are also represented graphically.

Exact determination of gravity stresses in finite elastic slopes: Part II. Applications

1983 ◽  
Vol 20 (1) ◽  
pp. 55-60 ◽  
Author(s):  
V. Silvestri ◽  
C. Tabib
Keyword(s):  
Exact Solution ◽  
Pressure Coefficient ◽  
Earth Pressure ◽  
Influence Diagrams ◽  
A Value ◽  
The Earth ◽  
Exact Determination ◽  
Earth Pressure Coefficient ◽  
Numerical Finite Element

Influence diagrams are presented for the gravity stresses arising in excavated finite elastic slopes inclined at various angles, −β (β = π/2, π/3, π/4, π/6, and π/8), with respect to the horizontal. These influence diagrams are calculated for a value of the earth pressure coefficient at rest, K0, equal to 0.50. Several examples are worked out and adequately illustrate the application of the influence charts and of the general solution. Finally, the results obtained from the exact solution are compared with those published in the literature, which were obtained by means of numerical (finite element) and experimental (photoelasticity) methods.

scholarly journals Determination of Earth Pressure and Displacement of the Retaining Structure According to the Eurocode 7-1

2016 ◽  
Author(s):  
Eugeniusz Dembicki ◽  
Bogdan Rymsza
Keyword(s):  
Comparative Analysis ◽  
Earth Pressure ◽  
Passive Earth Pressure ◽  
Limit States ◽  
Wall Displacement ◽  
Retaining Structure ◽  
Eurocode 7 ◽  
Pressure State

Comparative analysis of standard guidelines and findings given in EC7-1 and in Polish Standard PN-83/B-03010. Discussed guidelines concerning active and passive earth pressure as well as at rest pressure state. Wall displacement causing limit states of earth pressure and resistance. Interactive assumptions concerning intermediate earth pressure and resistance values. Conclusions and final remarks.

Mechanical Calculation for Collapse Mechanism of Surrounding Rock on Shallow Tunnel

2014 ◽  
Vol 580-583 ◽  
pp. 1148-1152
Author(s):  
Ying Peng ◽  
Jun Sheng Yang ◽  
Yan Hua Shen ◽  
Jian Hua Liu
Keyword(s):  
Upper Bound ◽  
Limit Analysis ◽  
Earth Pressure ◽  
Surrounding Rock ◽  
Collapse Mechanism ◽  
Shallow Tunnel ◽  
Upper Bound Method ◽  
Collapse Mechanisms ◽  
Surrounding Rock Pressure

The upper bound method of limit analysis is used for surrounding pressure calculation of shallow tunnel. Two rigid-block translational collapse mechanisms are assumed for shallow tunnel and the corresponding formulas are deduced. The earth pressure of shallow tunnel has been transformed into a mathematic optimization problem, we can get optimization solutions for the surrounding rock pressure by corresponding calculating program. It is concluded that the upper bound method of limit analysis is a feasible approach for the determination of surrounding pressures on shallow tunnel.

Sign in / Sign up

Export Citation Format

Share Document