Method for assessing stress influence of heap loading body at periphery of pipeline
A carrier and pipeline technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of no clear regulations and uncertainties in soil pile behavior, and achieve the effect of protecting safe and stable operation
Active Publication Date: 2018-10-09
PETROCHINA CO LTD
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Problems solved by technology
The protection law clearly stipulates the disposal of soil accumulation within 5 meters around the pipeline, but there is no clear regulation on the behavior of soil accumulation beyond 5 meters
Due to the lack of support from corresponding laws and regulations, the current site management mainly relies on the experience of patrol personnel to judge the impact of soil pile on the stress of buried pipelines, which is uncertain
Method used
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[0028] In order to make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Unless otherwise defined, all technical terms used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art.
[0029] The embodiment of the present invention provides a method for assessing the influence of pile carrier stress around the pipeline. The method is mainly used for front-line inspection personnel to quickly judge the influence of pile stress beyond 5 meters (including 5 meters) from the buried gas pipeline. The method includes:
[0030] Step 1: Obtain the distance L between the pile carrier and the buried pipeline, the height h of the pile carrier, the buried depth d of the buried pipeline, the Poisson's ratio μ of the foundation soil, the cohesion of the foundation soil c, and the ...
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The invention discloses a method for assessing a stress influence of a heap loading body at the periphery of a pipeline, and belongs to the technical field of storage and transportation engineering. The method involves a calculation formula for a maximum additional stress generated in the pipeline under the heap loading action; the stress of the buried pipeline can be directly calculated by obtaining parameters such as a pipeline burying depth, a soil type, a soil heaping spacing, a soil heaping scale and the like; and in combination with an allowed additional stress in the pipeline under theheap loading action, the safety of the pipeline is assessed. The stress of the pipeline under the complex soil heaping condition can be clearly determined; the method for quickly assessing the influence of the soil heaping stress at the periphery of the pipeline is provided for daily patrol personnel; and therefore, safety control measures are adopted in first time to protect safe and stable operation of the pipeline.
Description
technical field [0001] The invention relates to the technical field of storage and transportation engineering, in particular to a method for evaluating the influence of the stack carrier stress around the pipeline. Background technique [0002] With the rapid development of China's economy, the demand for energy in various industries is increasing day by day, and the construction of oil and gas pipelines has gradually entered a peak period. At the same time, economic development has driven the rapid expansion of urban construction. Contradictions are becoming increasingly prominent. As an oil and gas pipeline management and operation company, on the one hand, it must ensure the safe and stable operation of the pipeline to provide energy for economic development; [0003] The force of the piled soil around the pipeline on the pipeline is affected by various factors such as the volume of the piled soil, the buried depth of the pipeline, and the quality of the surrounding soil...
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IPC IPC(8): G06F17/50
CPCG06F2113/14G06F30/17G06F30/20G06F2119/06
Inventor 李晓霜刘良果张文艳李晶李琦侯胜黄海杨生红李根
Owner PETROCHINA CO LTD