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Mobile dry dock prefabricated immersed tube joint measuring method

A measurement method and mobile technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of inaccurate measurement and large error in measurement results.

Active Publication Date: 2021-06-18
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Immersed tube joints can be prefabricated on the deck of the mobile dry dock, but the position of the deck will change as the mobile dry dock undulates and shakes with the waves. At this time, the traditional GPS or total station The way the instrument measures the immersed tube joints will lead to large errors in the measurement results and the measurement is very inaccurate

Method used

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  • Mobile dry dock prefabricated immersed tube joint measuring method
  • Mobile dry dock prefabricated immersed tube joint measuring method

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0027] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. 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 descriptio...

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Abstract

The invention discloses a mobile dry dock prefabricated immersed tube joint measuring method. The method comprises the steps of S1 establishing a measurement plane above a deck surface of a mobile dry dock, and enabling the measurement plane to be parallel to the deck surface; S2 establishing a plurality of main control points on the deck surface, the main control points being located on the outer side of the projection of an immersed tube joint needing to be prefabricated on the deck surface, and arranging a main observation station at the main control points based on the measurement plane; and S3 placing an adjusted theodolite on the main observation station, and measuring the prefabricated immersed tube joint through the theodolite based on the measurement plane. According to the movable dry dock prefabricated immersed tube joint measuring method, the immersed tube joint can be accurately measured in the process of prefabricating the immersed tube joint.

Description

technical field [0001] The invention relates to a method for measuring pipe joints of immersed pipes, in particular to a method for measuring pipe joints of prefabricated immersed pipes in a mobile dry dock. Background technique [0002] The immersed tube tunnel is to sink the prefabricated immersed tube joints in the foundation pit groove of the seabed or river bottom, then fix, connect and backfill the pipe joints, and then pump out the water in the pipe joints to form a connected tunnel form. [0003] Immersed tube joints can be prefabricated on the deck of the mobile dry dock, but the position of the deck will change as the mobile dry dock undulates and shakes with the waves. At this time, the traditional GPS or total station The way the instrument measures the immersed tube joints will lead to large errors in the measurement results and the measurement is very inaccurate. Contents of the invention [0004] The present invention aims to solve at least one of the tech...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01B11/06G01B11/24
CPCG01B11/00G01B11/0608G01B11/24
Inventor 裴超钟玉明欧智勇任少权刘永成曾昭文赵涛涛仲伟欧力强
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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