An energy-saving and environment-friendly pipeline laying construction analysis method for mudflat sections such as shallow silt water

Abstract

The invention discloses an energy-saving and environment-friendly pipeline laying construction analysis method for mudflat sections such as sludge, shallow water and the like. The method comprises thefollowing steps that S1, polyethylene pipeline stretching construction nonlinear numerical simulation is carried out, ABAQUS is adopted as a main tool for finite element analysis, and the ABAQUS hasrich unit libraries capable of simulating any shape and various types of material model libraries corresponding to the unit libraries; S2, analyzing the grouting pressure of the drag reduction slurrybased on ABAQUS, and establishing a three-dimensional river model, a pipeline model path and river grid division; and S3, analyzing the supporting pressure in the muddy water cabin based on ABAQUS. The invention mainly aims at an energy-saving and environment-friendly pipeline laying construction analysis method for mud shallow water and other mudflat sections. A series of problems of backward technical level and management concept, serious resource waste phenomenon, construction information expression and fuzzy transmission and the like are solved, the cost is greatly reduced, the construction period is greatly shortened, and the construction technology research has pertinence and high efficiency and has high social benefits.

Description

technical field [0001] The invention relates to the technical field of pipeline laying construction, in particular to an analysis method for energy-saving and environment-friendly pipeline laying construction in tidal flat areas such as silt and shallow water. Background technique [0002] During the pipeline construction process, the underground conditions that need to pass through are sometimes extremely complicated, which will inevitably cause disturbance to the soil around the pipeline, especially in the construction of tidal flats such as silt and shallow water, resulting in large strata The factors affecting the movement of the ground are very complicated, but it can be considered that the loss of the ground and the reconsolidation of the disturbed soil around the pipeline are the main factors causing the displacement of the ground. . [0003] ABAQUS has a rich library of elements that can simulate arbitrary shapes and corresponding material model libraries of various...

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Problems solved by technology

[0004] During the construction of energy-saving and environmentally friendly pipelines in tidal flat areas such as silt and shallow water, the frictional resistance between the soil around the corresponding pipeline and the pipeline and the soil pressure (earth pressure and water pressure) on the working surface also change accordingly, which cannot be compared It is a problem to be solved in the pipeline construction process to adjust the construction load acting on the pipeline according to the construction progress position, and to adjust the pressure of the working mud and the thixotropic mud in the slurry tank

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