Method for measuring elevation of top of ultrahigh column

Abstract

The invention relates to a method for measuring the elevation of the top of an ultrahigh column. The method comprises the following steps: (1), measuring an elevation point h on the side wall of the ultrahigh column; (2), building a total station on a point A at a distance from one side of the ultrahigh column, which is provided with the elevation point h, wherein the distance is controlled to be 1.5 times the height of the ultrahigh column; (3), measuring an S1 distance at the bottom of the ultrahigh column along the direction of the total station and determining a point B, controlling the S1 to be 0.2m-0.5m, arranging a prism at the point B, and measuring the horizontal distance S; (4), observing the elevation point h by using the total station, recording a vertical angle alpha1, and recoding a vertical angle alpha2; and (5), measuring the elevation of the top of the ultrahigh column, wherein the elevation H of the top of the ultrahigh column is equal to h+tanalpha2*(S1+S)+ / -tanalpha1*(S1+S). According to the method, the working time is shortened, and the work risk is lowered. Meanwhile, the measurement precision is ensured, and the safety environment of work is also improved when manpower and material resources are saved for the project from the perspective of conservation.

Description

technical field [0001] The invention belongs to the field of measurement methods, in particular to a method for measuring the top elevation of a super-high column. Background technique [0002] At present, public buildings tend to have large spaces and multiple styles. Nowadays, large super-high columns are very common and play a major supporting role in buildings. It is particularly important whether the top elevation of the columns meets the design requirements. How to accurately measure the elevation of the top of a super high column with a height of more than 10 meters is a relatively difficult thing. In the past, the method of measuring the top elevation of a super-high column was mainly determined by adding the actual length of the column to the bottom elevation of the column, or directly measuring from the top of the column to the bottom elevation of the column with a steel ruler to determine the height of the column. top elevation. These two measurement methods ca...

AI Technical Summary

Problems solved by technology

These two measurement methods cannot accurately reflect the top elevation of the column, and are time-consuming and labor-intensive, and are relatively dangerous

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