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Ultra-wide water area precision cross-river leveling device and method

A technology of leveling and measuring devices, applied in measuring devices, height/horizontal measurement, surveying and navigation, etc., can solve problems such as poor measurement accuracy, achieve the effects of reducing three main errors and improving accuracy and work efficiency

Pending Publication Date: 2018-11-16
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of poor measurement accuracy in the existing triangulation elevation method for cross-river leveling measurement of ultra-wide waters above 3500 meters

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  • Ultra-wide water area precision cross-river leveling device and method
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  • Ultra-wide water area precision cross-river leveling device and method

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Embodiment Construction

[0042] The invention provides a precision cross-river leveling device and method in ultra-wide waters, which has the characteristics of synchronous direct opposite observation, direct measurement of instrument height and target elevation, effectively weakens the influence of atmospheric refraction and earth curvature, and significantly reduces The measurement error is reduced, and the accuracy and work efficiency of cross-river leveling using the triangular elevation measurement method for ultra-wide waters are greatly improved.

[0043] Such as Figure 1-8 As shown, a precision cross-river leveling device in ultra-wide waters includes multiple sets of measuring devices arranged on both sides of the river. On both sides, the detection device includes a forced centering pier 5, such as figure 1 As shown, the forced centering piers 5 on both sides of the river bank can be respectively forced centering piers A, B, C, and D.

[0044]The measuring device includes: a coaxial targe...

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Abstract

The invention discloses an ultra-wide water area precision cross-river leveling device and method. The ultra-wide water area precision cross-river leveling device comprises a plurality of measuring devices arranged on both sides of a river. The measuring device comprises a coaxial surveyor's beacon support frame and a total station. The coaxial surveyor's beacon support frame comprises a top plateand a base. The top plate is provided with a first threaded hole, the base is provided with a second threaded hole, the threaded holes are opposite and a vernier gage rod passes through the first andsecond threaded holes and is used for measuring the device height and surveyor's beacon height. The top plate is provided with a surveyor's beacon lamp and a prism set. The total station is detachably mounted on the base through a locking component. The device has the characteristics of synchronous direct opposite observation and direct measurement of instrument height and surveyor's beacon height, significantly reduces adverse effects such as elevation measurement errors caused by atmospheric refraction, earth curvature, instrument height and surveyor's beacon height in the triangular elevation measurement, and greatly improves the precision and work efficiency.

Description

technical field [0001] The invention relates to the field of cross-river leveling measurement, in particular to a precision cross-river leveling measurement device and method for ultra-wide water areas. Background technique [0002] With the construction of long bridges and sea-crossing bridges, the use of triangular elevations for precise cross-river leveling in ultra-wide waters above 3,500 meters is the main means of elevation transfer on both sides of bridges. The country's current first- and second-class leveling standards have no provisions for leveling across rivers above 3,500 meters. Triangular elevation measurement, especially when using triangular elevation measurement for cross-river leveling in ultra-wide waters above 3500 meters, its accuracy is mainly affected by atmospheric refraction and the curvature of the earth. Opposite observations are required in precision engineering applications such as bridges. However, in traditional triangular elevation surveyin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00
CPCG01C5/00Y02A90/30
Inventor 肖根旺王晓智张耿
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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