A method for calculating earthquake earth pressure of gravity embankment retaining wall

A calculation method and retaining wall technology, applied in the field of geotechnical engineering, can solve problems such as earthquake earth pressure gaps, and achieve the effect of simplifying the force system balance relationship and high precision

Active Publication Date: 2018-12-28
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

In actual engineering, it is also very common that the retaining wall is connected to the road through the embankment, that is, the gravity embankment retaining wall is als

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  • A method for calculating earthquake earth pressure of gravity embankment retaining wall
  • A method for calculating earthquake earth pressure of gravity embankment retaining wall
  • A method for calculating earthquake earth pressure of gravity embankment retaining wall

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[0034] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0035] A calculation method for earthquake earth pressure of a gravity type embankment retaining wall, comprising the following steps:

[0036] Step 1: Establish a theoretical model calculation diagram

[0037] According to Coulomb's earth pressure theory, it is assumed that the gravity embankment retaining wall 1 is a rigid body, and the filling soil behind the wall is cohesive soil. like figure 1 As shown, when the retaining wall 1 deviates from the filling soil and the filling soil behind the wall reaches the limit equilibrium state, the filling soil behind the wall is in the fo...

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Abstract

The invention discloses a method for calculating earthquake earth pressure of gravity embankment retaining wall, which comprises the following steps: according to the basic assumption of Coulomb earthpressure theory, a theoretical model calculation diagram is established according to the limit equilibrium state of a quadrilateral sliding soil wedge; considering the static equilibrium condition ofsoil wedge, the equilibrium diagram of force system is established; gravity G and seismic inertia force F are synthesized to obtain F combination and simplifying force system equilibrium diagram; according to the sinusoidal theorem, the seismic active earth pressure of gravity embankment retaining wall is calculated. A method for calculating earth pressure of gravity embankment retaining wall under earthquake condition features that a shaking table test is carried out to compare that theoretical calculation result with the actual measurement result, and the theoretical calculation result is proved to have high accuracy and the applicability of the calculation method is verified.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a calculation method for earthquake earth pressure of a gravity type embankment retaining wall. Background technique [0002] Gravity retaining wall is a commonly used retaining wall at present, and its characteristic is to maintain the stability of the retaining wall under the action of earth pressure by the gravity of the retaining wall itself. Under earthquake conditions, the number of damages suffered by gravity retaining walls is the largest among all retaining wall structures, and the degree of damage is relatively serious. Therefore, it is necessary to study the seismic earth pressure on gravity retaining walls. [0003] Most of the existing studies focus on the gravity retaining wall of the road shoulder, and there are some methods for calculating the seismic earth pressure on the gravity retaining wall under earthquake conditions. In actual engineering,...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/13G06F2119/06
Inventor 曲宏略邓媛媛黄雪李博文王晨旭胡沁迪吴颖梅迁胡立鹏汪洋刘梦冉刘磊
Owner SOUTHWEST PETROLEUM UNIV
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