A method and device for fitting and measuring the end face of an immersed tube joint with high precision
A high-precision, tube-joint technology, applied in measuring devices, instruments, etc., can solve the problems that affect the quality of tube joint crimping, the deviation of the end of the tube joint, and the inability to fully reflect the unevenness and inclination of the steel shell at the end, etc.
Active Publication Date: 2017-08-25
NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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Problems solved by technology
[0003] At present, the existing measurement of the end surface of the end steel shell of the pipe joint only measures the coordinates of multiple characteristic points of the end steel shell and compares them with the design values separately, which cannot fully reflect the overall unevenness and inclination of the end steel shell, which affects the sinking The crimping quality of the butt end of the pipe joint and the end deviation of the pipe joint during pipe installation
Method used
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Embodiment Construction
[0030] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0031] In order to better understand and apply a method and device for fitting and measuring the end surface of a high-precision immersed tube joint proposed by the present invention, it will be described in detail with the following drawings as an example.
[0032] like figure 1 As shown, the present invention provides a method for fitting and measuring the end face of a high-precision immersed tube joint, including the following specific steps:
[0033] Step S1: Multiple measuring points are arranged on the end steel shell.
[0034] Specifically, 96 measuring points are evenly arranged in the form of reflective sheets on the theoretical crimping centerline of the steel shell GINA waterstop at the end of the immersed tube.
[0035] Step S2: Perform overall fitting on multiple measuring points to generate the curved surface of the entire end steel shel...
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The invention relates to a method for tube segment end surface fitting measurement of a high-precision immersed tube. The method comprises steps as follows: multiple measurement points are uniformly arranged on an end steel shell; overall fitting is performed on the multiple measurement points to generate a curved surface of the whole end steel shell; the distance between each of the measurement points and the fitting curved surface and deviation angels of the whole end steel shell in the horizontal direction and the vertical direction are calculated. The whole form of the end steel shell is accurately fitted; the unevenness, the end-surface vertical deflection angle and the end surface horizontal deflection angle of each measurement point are fitted, the prefabrication deviation condition of the end steel shell of a tube segment is accurately reflected, and the result serves as an important index for assessment of the prefabrication quality of the end steel shell and an important basis of linear adjustment of the tube segment for mounting of the immersed tube. The invention further discloses a device for tube segment end surface fitting measurement of the high-precision immersed tube.
Description
technical field [0001] The invention relates to the technical field of engineering measurement, in particular to a method and a device for fitting and measuring the end surface of a high-precision immersed pipe joint. Background technique [0002] The fitting measurement result of the end surface of the immersed tube is one of the main indicators to evaluate the prefabrication quality of the steel shell at the end of the pipe joint. Among them, the influence of the horizontal (fitting) inclination angle and vertical (fitting) inclination angle of the end steel shell on the quality of the end steel shell Especially prominent, in the prior art, the prefabrication error of the end steel shell is determined by directly measuring the coordinates. [0003] At present, the existing measurement of the end surface of the end steel shell of the pipe joint only measures the coordinates of multiple characteristic points of the end steel shell and compares them with the design values s...
Claims
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IPC IPC(8): G01B21/16G01B21/22G01B21/30
CPCG01B21/16G01B21/22G01B21/30
Inventor 张秀振刘晓东刘兆权陈正杰林巍季浩华赵坤锁旭宏
Owner NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG