Segment dislocation measuring device and method

A technology of misalignment measurement and measurement, which is applied in the field of segment misalignment measurement devices, can solve the problems that the arc surface of the segment and the feeler gauge cannot be closely fitted, the measurement is inconvenient, and manpower is consumed, etc., and the cost is low, Easy to obtain materials and work conveniently

Pending Publication Date: 2019-06-18
中建八局轨道交通建设有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. When measuring the segment misalignment, due to the measuring principle of the feeler gauge, the feeler gauge needs to be attached to the lower arc surface of the segment, and the steel ruler is close to the raised segment, but the segment is an arc The surface of the feeler gauge is linear, so that the arc surface of the tube and the feeler gauge cannot be closely fitted, resulting in measurement errors; and the longer the feeler gauge length, the less tightly the fit and the greater the error , resulting in errors in the measured data, the measurement is inconvenient and requires both hands to complete the operation
[0005] 2. During the measurement process, it is necessary to hold the steel ruler in one hand and the feeler gauge in the other hand, which is inconvenient to operate, and it requires the cooperation of a second person to save the image data, which consumes manpower

Method used

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  • Segment dislocation measuring device and method
  • Segment dislocation measuring device and method
  • Segment dislocation measuring device and method

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Embodiment

[0035] Take two rulers with a scale range of 0-15cm, an accuracy of 1mm, and a width of 35mm as the first measuring ruler 1 and the second measuring ruler 2, and connect them symmetrically at the 0 scale line to form an integrated structure, and the first The included angle between the measuring ruler 1 and the second measuring ruler 2 is 174.26°, that is, θ=5.74°, the misalignment a=L*sinθ=0.1L, and the measurement accuracy of the misalignment a is 0.1mm. Put the side with the scale line of the first measuring ruler 1 on the first segment 3, that is, the lower step segment of the staggered stage, and move along the direction of the first segment 3 to the second segment 4, that is, the raised segment of the staggered stage Move until the side with the scale line of the second measuring ruler 2 is just in contact with the second tube piece 4, and read the scale at the point of contact with the second tube piece 4 on the second measuring ruler 2 to be 9.1 cm, then The amount of ...

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Abstract

The invention discloses a segment dislocation measuring device and method. The device comprises a first measuring ruler (1) and a second measuring ruler (2); the first measuring ruler and the second measuring ruler are both rulers with scale marks; the 0 scale mark end of the first measuring ruler is connected with the 0 scale mark end of the second measuring ruler; an angle between the first measuring ruler and the second measuring ruler is 180 degrees-theta; and a dislocation quantity a is equal to a scale reading L*sin (180 degrees-theta). The method includes the following steps that: the scale mark side of the first measuring ruler is attached onto a first segment (3); step 2, the first measuring ruler slides along the first segment toward a second segment, so that the scale mark sideof the second measuring ruler contacts with the edge of the upper end of the second segment; and step 3, the dislocation quantity a is calculated through the scale reading L. With the device and method of the invention adopted, measurement errors and measurement work intensity can be decreased, accurate and timely dislocation data are provided for a shield formed tunnel, the analysis of the causeof dislocation is assisted, construction parameters are adjusted, and a preliminary basis is provided for high-quality formed tunnels.

Description

technical field [0001] The invention relates to a measuring tool and method in shield tunneling construction, in particular to a segment offset measuring device and method. Background technique [0002] In shield construction technology, the quality of the formed tunnel is an important basis for measuring the quality of the main project. The quality parameters of the formed tunnel include water seepage, damage, misalignment, ellipticity, elevation, horizontal position, etc. The important acceptance items of the tunnel acceptance must meet the 100% pass rate required by the design and specification in order to pass the project acceptance. Segment misalignment is the dimensional deviation formed between adjacent segments of the same ring or adjacent ring segments after the assembly is completed. There are many factors that affect the size of the misalignment, such as: shield posture, segment bolt tightening, synchronization Timely and accurate mastering of segment mislocation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/02
Inventor 张钛虹许慧鹏相开将崔宏伟
Owner 中建八局轨道交通建设有限公司
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