Concrete diameter construction survey control method for cooling tower and large-scale construction barrel

Abstract

The invention relates to a concrete diameter construction survey control method for a cooling tower and a large-scale construction barrel. The method comprises the following steps: on the basis of utilizing the projection of the center of the barrel on a plane as a circle center, dividing a circle into N equal parts according to the number N of creeping formwork guide rails and utilizing ink lines and red paint to mark on a bottom plate so as to serve as radial lines, wherein the central lines of the creeping formwork guide rails are corresponding to the radial lines; erecting a total station at the circle center, reading the distance L1 between the circle center and the reference point of an erected optical plummet along the radial lines, and reading the reading L2 of an organic glass measuring scale protruded from the inner edge of the creeping formwork guide rail on a barrel wall, wherein the inner radius R inner of the barrel wall is equal to the sum of L1 and L2; checking whether R inner is equal to R or not, if deviation exists, regulating the creeping formwork guide rails until the R inner is equal to R; utilizing a same method to determine the radius of each section of the barrel; and controlling the concrete radius of the barrel according to the condition that the sum of the inner radius of the barrel wall and the thickness of the barrel wall is equal to the outer radius of the barrel wall. The method provided by the invention is safe and reliable, is simple in operation and high in precision, and can be used for greatly reducing the labour intensity of measurement personnel and improving the measurement efficiency.

Description

Technical field: [0001] The invention belongs to the field of construction engineering, and in particular relates to a method for measuring and controlling the concrete radius of a hyperbolic cooling tower and a large-scale structure cylinder, so as to ensure that the concrete appearance of the cylinder wall is accurate. Background technique: [0002] The existing cooling tower and large-scale structure tube concrete radius measurement and control technology is: measure the angle with theodolite on the high-altitude platform or on the scaffold, and then measure the distance with a 50m or 100m ruler to control the radius of the tube wall. The disadvantages of this technology are: 1. Due to the large radius and the high-altitude operation, the measurement accuracy is not easy to control. 2. Due to the high altitude, the operation is very inconvenient, which brings potential safety hazards to the on-site surveyors. This technology is no longer suitable for the needs of modern ...

AI Technical Summary

Problems solved by technology

The disadvantages of this technology are: 1. Due to the large radius and the high-altitude operation, the measurement accuracy is not easy to control

2. Due to the high altitude, the operation is very inconvenient, which brings safety hazards to the on-site surveyors

This technology is no longer suitable for the needs of modern buildings

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