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Design method for pre-assembly and selection of segment segments in curved section of shield tunneling based on bim technology

A technology of shield tunneling and pre-assembly, which is applied in tunnels, tunnel linings, design optimization/simulation, etc. It can solve problems such as difficult selection of segment wedges, difficult segment assembly, and large cumulative errors, so as to reduce construction difficulty, Reduced construction loss and high precision

Active Publication Date: 2019-07-23
中交二公局第四工程有限公司
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AI Technical Summary

Problems solved by technology

[0004] For the traditional segment design method of shield tunnel curve segment, it has the following disadvantages and limitations: (1) The design result is a two-dimensional drawing, which cannot be as intuitive as a three-dimensional model
(2) It is difficult to consider the assembly of each ring segment in advance, and it is easy to cause excessive cumulative errors
(3) It is difficult to select the wedge shape of the segment according to the curvature of the entire line to achieve the required curvature of the line assembled

Method used

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  • Design method for pre-assembly and selection of segment segments in curved section of shield tunneling based on bim technology
  • Design method for pre-assembly and selection of segment segments in curved section of shield tunneling based on bim technology
  • Design method for pre-assembly and selection of segment segments in curved section of shield tunneling based on bim technology

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Embodiment Construction

[0025] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0026] A BIM-based technology-based design method for the pre-assembly and selection of shield tunnel segment segments in curved sections, comprising the following steps: Step S1: extracting line plane and longitudinal section data to generate a three-dimensional space curve for the centerline of the curved section;

[0027] Step S2: Establish a three-dimensional model of the single-ring segment according to the design drawing;

[0028] Step S3: Carry out line pre-assembly along the three-dimensional space curve of the center line of the shield tunnel curve section;

[0029] Step S4: export the layout diagram of each ring segment of the line;

[0030] Step S5: Install the physical components according to the pre-assembled layout diagram.

[0031] Further, in this embodiment, in step S1, the three-dimensional coordinates of the centerlin...

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Abstract

The invention relates to a shield structure tunnel curve section duct piece pre-assembly type selection design method based on a BIM technology. The shield structure tunnel curve section duct piece pre-assembly type selection design method based on the BIM technology includes the following steps that S1, data of a circuit plane and a vertical section are obtained, and a center line three-dimensional space curve of the shield structure tunnel curve section is formed; S2, a three-dimensional model of single ring duct pieces is established according to a design picture; S3, circuit pre-assembly is conducted along the center line three-dimensional space curve of the shield structure tunnel curve section; S4, a pre-assembly type setting picture of each single ring duct piece is obtained; and S5, entity component installation is conducted according to the pre-assembly type setting pictures. According to the shield structure tunnel curve section duct piece pre-assembly type selection design method based on the BIM technology, a BIM model of annular rings of the duct pieces of the shield structure tunnel curve section is established, so that three-dimensional visual design of arrangement of the shield structure tunnel curve section duct pieces is achieved, the model produced by the shield structure tunnel curve section duct piece pre-assembly type selection design method based on the BIM technology is visualized, is convenient to modify, and can improve the design and assembly efficiency of the shield structure tunnel curve section duct pieces.

Description

technical field [0001] The invention relates to the technical field of shield tunnel segment installation in underground geotechnical engineering, in particular to a BIM technology-based method for pre-assembly and type selection design of segment segments in curved sections of shield tunnels. Background technique [0002] Economically developed cities have begun to build subway projects, and shield construction technology is widely used in subway projects. The tunnel lining constructed by the shield method mainly adopts the fabricated lining, and the lining is a prefabricated reinforced concrete segment, which constitutes the main structure of the shield tunnel and bears the load of the surrounding soil. [0003] The shield tunnel is made up of a series of segments, which can be regarded as a collection of short broken lines, which are approximately fitted to the actual line. The traditional ordinary segments can be simulated by turning rings for plane curves. At present,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08G06F17/50
CPCE21D11/083G06F30/20
Inventor 王超东雷美玲石爽冯珂史岩峰魏添焰邓涛曹洋赖荫楠
Owner 中交二公局第四工程有限公司
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