Method for measuring second-grade river-crossing leveling height difference by using intelligent total station

Abstract

The present invention discloses a method for measuring second-grade river-crossing leveling height difference by using an intelligent total station. The method is characterized in that, various river-crossing leveling points are firstly arranged; the height difference among the river-crossing leveling points is measured; an intelligent total station and a reflecting prism are adopted among the river-crossing leveling points positioned on different banks during the measurement process to carry out the synchronous and opposite observation of both banks of the river. According to the present invention, the equipment height is fixed, the alignment is forced to be performed, the intelligent total station and the reflecting prism are arranged integratedly; because the optical alignment and the measurement of the equipment height are not required, the error of the optical alignment and the error of the measurement of the equipment height are avoided; the synchronously-performed river-crossing leveling height measurement counteracts the atmospheric refraction error so as to substantially improve work efficiency and measurement accuracy.

Description

technical field [0001] The invention relates to a leveling survey method, which is mainly used for second-class level cross-river surveying. Background technique [0002] At present, bridges crossing rivers, rivers and even seas in various projects in my country have generally appeared, and the difficulty of cross-river leveling has followed. The accuracy of leveling is crucial to the quality of on-site elevation construction. At present, my country generally uses three methods for cross-river leveling surveys: one is the detour of the level instrument, but the detour is too far, the error is accumulated, the accuracy is difficult to guarantee and the workload is heavy; the other is the traditional cross-river leveling survey, such as optical surveying. The micro-device method, the inclined spiral method, the theodolite inclination method, etc., need to make a special target plate for observation, the measurement operation is cumbersome, and the requirements are strict, the h...

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Problems solved by technology

At present, my country generally uses three methods for cross-river leveling surveys: one is the detour of the level instrument, but the detour is too far, the error is accumulated, the accuracy is difficult to guarantee and the workload is heavy; the other is the traditional cross-river leveling survey, such as optical surveying. The micro-device method, the inclined spiral method, the theodolite inclination method, etc., need to make a special target plate for observation, the measurement operation is cumbersome, and the requirements are strict, the human error is large, and there are high requirements for the observer and the ruler; Distance triangle elevation method, this method is affected by the weather and environment, especially the atmospheric refractive difference in the river environment, and human error is also introduced in the process of optical centering and measuring the height of the instrument and the height of the reflective prism

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