Railway prestressed embankment slope stability analysis method

An analysis method and prestressing technology, applied in special data processing applications, instruments, geometric CAD, etc., can solve problems such as not conforming to the real action mechanism, and achieve the effect of simplifying the limit equilibrium formula

Active Publication Date: 2022-05-17
CENT SOUTH UNIV +3
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Problems solved by technology

Therefore, this treatment method does not conform to the real mechanism of action and has certain defects.

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  • Railway prestressed embankment slope stability analysis method
  • Railway prestressed embankment slope stability analysis method
  • Railway prestressed embankment slope stability analysis method

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[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0053] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the dra...

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Abstract

The invention discloses a railway prestressed embankment slope stability analysis method. The method comprises the following steps: determining geometrical shape parameters of an embankment slope to be calculated, filler strength parameters of each structural layer and reinforcement parameters; calculating the self-weight of the track structure and the train load according to a conversion soil column method according to specifications; establishing a prestressed embankment mechanical model; performing soil strip division on the slip mass according to the potential slip surface of the embankment; according to an additional stress diffusion method, obtaining an additional normal load and an additional tangential load, caused by prestress, of the bottom surface of each soil strip; equivalent inter-strip force between adjacent soil strips is calculated through a simple method; calculating normal counter-force at the bottom of the soil strip and gliding force of the soil strip according to the stress of the soil strip; and calculating the safety coefficient of the prestressed embankment. According to the analysis method, the limit balance strip division method serves as a framework, the prestress diffusion effect, the equivalent strip force effect, the rail self-weight and the train axle load are comprehensively considered at the same time, the safety coefficient of the prestress embankment can be rapidly and efficiently evaluated, and relevant reinforcement efficiency reference is provided for relevant design.

Description

technical field [0001] The invention relates to the technical field of railway embankment engineering, in particular to a method for analyzing the stability of a railway prestressed embankment slope. Background technique [0002] Stability analysis is a key link in the design of embankments and slopes. However, due to the diversity of slope media and anchors, how to deal with prestress as anchor load in stability analysis has not yet been unified. At present, the commonly used processing method in the engineering field is to only consider the influence of the anchor load on the force and balance of the directly acting bar, while ignoring the diffusion effect of the anchor load on other bars. However, in actual engineering, the anchor load does not act on a single block or evenly distributed, but can spread to a larger area. Therefore, this treatment method does not conform to the real mechanism of action and has certain defects. As for the prestressed embankment, the chang...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06F119/14
CPCG06F30/13G06F30/20G06F2119/14
Inventor 门小雄徐方冷伍明苏辉阮波张期树杨奇刘思慧董俊利聂如松
Owner CENT SOUTH UNIV
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