Method for analyzing bearing capacity of road-crossing pipe section
A technology of bearing capacity and analysis method, which is applied in the direction of instrumentation, data processing application, design optimization/simulation, etc., can solve the problems of lack of practical application value, lack of quantification and formation of analysis method of pipeline ultimate bearing capacity, etc., and achieve high efficiency
Active Publication Date: 2022-05-06
SOUTHWEST PETROLEUM UNIV
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[0006] 3. The current research is based on the regularity of the dynamic response of the pipeline based on the influence factors such as vehicle load, without quantifying and forming the analysis method of the ultimate bearing capacity of the pipeline, which lacks practical application value
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[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.
[0041] In the present invention, the terms "first", "second" and the like are used to distinguish similar objects, rather than to describe a specific order or sequence, unless stated otherwise. The terms used should be understood as such; use of the terms "upper", "lower", "left", "right", etc. generally refers to the orientation shown in the drawings, or to the parts themselves in vertical, perpendicular or In terms of the direction of gravity; similarly, for the convenience of understanding and description, "inner", "outer", etc. refer to the inner and outer relative to the outline of each component itself. But the above lo...
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The invention discloses a method for analyzing the bearing capacity of a road-crossing pipe section. The method comprises the following steps: collecting basic data of a target pipe section, a road and passing vehicles; establishing a vehicle-pavement model and a pipe-soil model, and simulating the dynamic stress change process of the pipeline under the rolling action of the vehicle to obtain a relational expression between the pipeline stress and the vehicle load; calculating the safety yield strength of the pipeline, and determining the current ultimate bearing capacity of the pipeline; and finally, quantifying the limit vehicle load which can be borne by the pipeline, and establishing a road-crossing pipe section overload early warning index evaluation system. According to the invention, the dynamic stress response process when a vehicle passes through a crossing road pipeline in a rolling manner can be simulated more truly and effectively; the ultimate bearing capacity of the pipeline in a safe operation state can be simulated and quantified; the influence rule of different factors on the pipeline can be obtained; establishing a highway crossing pipe section overload early warning index evaluation system; the method provides an optimal scheme for safe operation of the crossing road pipe section, and has important guiding significance for ensuring safe and normal operation of the pipeline.
Description
technical field [0001] The invention relates to the technical field of structural safety of oil and gas pipelines, in particular to a method for analyzing the bearing capacity of pipeline sections crossing highways. Background technique [0002] The vehicle load is one of the most frequent and main live loads that cross the road pipeline. The wheel force is transmitted to the buried pipeline through the road surface, which will cause a sharp increase in the stress of the pipeline. For pipelines crossing provincial roads or some early constructions, protective measures such as casings and box culverts are usually lacking. The pipe section crossing the road has been crushed by vehicles for a long time, and there are many hidden dangers in safe operation. Under the rolling action of heavy vehicles, failure behaviors such as displacement and deformation are prone to occur in the pipe section passing through the road. At present, there is no effective method or means to determ...
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Login to View More IPC IPC(8): G06F30/17G06F30/13G06F30/23G06Q10/06G06Q50/26G06F113/14G06F119/02G06F119/14
CPCG06F30/17G06F30/13G06F30/23G06Q10/0635G06Q50/26G06F2113/14G06F2119/14G06F2119/02
Inventor 夏国强陈小榆廖柯熹何腾蛟何国玺
Owner SOUTHWEST PETROLEUM UNIV