Immersed tube tunnel end steel shell mounting and measuring method

A technology of immersed tube tunnel and measurement method, which can be used in measurement instruments, measurement devices, mapping and navigation, etc., and can solve problems such as low measurement accuracy

Active Publication Date: 2020-12-11
GUANGZHOU SHIPYARD INTERNATIONAL LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a steel shell installation measurement method at the end of an immersed tube tunnel, which improves the measurement accuracy of the end steel shell installation and avoids the problem of low measurement accuracy caused by error accumulation

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  • Immersed tube tunnel end steel shell mounting and measuring method
  • Immersed tube tunnel end steel shell mounting and measuring method
  • Immersed tube tunnel end steel shell mounting and measuring method

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a s...

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Abstract

The invention discloses an immersed tube tunnel end steel shell mounting and measuring method, and relates to the technical field of immersed tube tunnels. The method comprises the following steps: S1, setting a plurality of measuring points; S2, arranging a measuring pile at each measuring point; S3, installing a total station on one measuring pile, and installing prisms on the other measuring piles; S4, measuring the prisms by using a total station; S5, repeating the steps S3 and S4, and measuring each measurement pile to form a measurement coordinate network; S6, setting a virtual coordinate system in the measurement coordinate network to obtain a coordinate value of each measuring pile; S7, according to the coordinate values of the measuring piles, obtaining actual coordinate values ofthe measuring piles through adjustment calculation software; S8, pasting a reflector on the surface of the end steel shell; S9, erecting a measuring instrument on the measuring piles to perform three-dimensional coordinate data acquisition on the reflection points on the end steel shell; and S10, comparing the acquired three-dimensional coordinate data with theoretical data to adjust the mountingposition of the whole end steel shell. The installation and measurement precision of the end steel shell is improved.

Description

technical field [0001] The invention relates to the technical field of immersed tube tunnels, in particular to a method for installing and measuring steel shells at the end of immersed tube tunnels. Background technique [0002] A complete immersed tube tunnel is generally spliced ​​by multiple immersed tube sections, and two adjacent immersed tube sections are connected and fixed by end steel shells. [0003] During assembly, the end steel shell is mainly set out by setting out the reference line on the ground or platform in the assembly area in advance during the overall closing stage of the immersed tube joints, using the reference line as the reference, using measuring tools such as tape measure, line hammer, laser theodolite, total station, etc. Measure the positional relationship of the steel shell at the end, and control and measure its installation accuracy. [0004] Due to the large area of ​​the ground or platform in the assembly area, considering the measurement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 刘钱吴祺盛龙汉新
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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