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A construction method for longitudinal curve pipe jacking based on bim technology

A construction method and pipe jacking technology, which can be used in pipeline laying and maintenance, pipes/pipe joints/pipe fittings, machinery and equipment, etc., can solve the problems of pipe jacking posture and soil settlement that are not easy to control, large construction deviation, etc. The effect of improving construction accuracy and construction efficiency, avoiding safety accidents and reducing engineering costs

Active Publication Date: 2021-01-26
CHINA MCC17 GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of large construction deviations, difficult control of pipe jacking attitude and soil settlement when using the existing curved pipe jacking construction technology, and provide a longitudinal curved pipe jacking based on BIM technology. pipe construction method

Method used

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  • A construction method for longitudinal curve pipe jacking based on bim technology

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Embodiment Construction

[0030] like figure 1 As shown, a kind of longitudinal curve pipe jacking construction method based on BIM technology of the present invention, realizes according to the following steps:

[0031] Step 1. Determine the construction parameters of the pipe jacking foundation

[0032] Predict the initial values ​​of pipe jacking parameters according to the geological conditions and environmental conditions to be constructed (according to previous construction experience); jacking parameters mainly include jacking speed, soil displacement, deviation correction angle, cutter head speed, etc.

[0033] Step 2. Create a three-dimensional finite element model for pipe jacking excavation based on layered structure, calculate the soil settlement conditions under different buried depths and pipe diameters, and re-determine the roof settlement under different buried depths and pipe diameters according to the soil settlement conditions. Entering parameters; the pipe diameters are 500mm, 800m...

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Abstract

The invention discloses a BIM technology-based longitudinal curve pipe jacking construction method, which belongs to the technical field of municipal engineering pipe jacking construction. The invention comprises the following steps: Step 1, determining the construction parameters of the pipe jacking foundation; Step 2, creating a three-dimensional finite element model for pipe jacking excavation based on layered structure, and analyzing the soil settlement under different buried depths and pipe diameters; Step 3 1. In the simulation of the pipe jacking process based on three-dimensional finite element analysis, analyze the comprehensive force on the soil during the pipe jacking process; step 4, optimize the pipe jacking parameters according to the comprehensive force of the soil, and get Find the parameters of the pipe jacking system under the optimal working conditions; step five, establish a three-dimensional visualization model of pipe jacking construction based on BIM software, and carry out construction simulation; step six, on-site construction and monitoring. The invention can effectively improve the construction accuracy, better control the settlement of the soil body and the jacking attitude of the longitudinal curve pipe jacking.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering pipe jacking construction, and more specifically relates to a BIM-based longitudinal curve pipe jacking construction method. Background technique [0002] With the rapid development of urban infrastructure in our country, the development and utilization of urban underground space has become an inevitable trend of urban development. Pipe jacking construction is often used in the development and construction of urban underground space. Pipe jacking construction technology is a non-excavation technology. Its main feature is to change pipeline laying from open excavation to underground excavation. The generated jacking force overcomes the friction between the pipeline and the surrounding soil, pushes the pipeline into the soil according to the designed slope, and transports the soil away. After one section of pipe has been jacked into the soil layer, the second section of pipe continues...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/028
CPCF16L1/028
Inventor 路希鑫王申杰钱浩杨圆圆张首锋方义军孙亚辉
Owner CHINA MCC17 GRP
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