Method for measuring concrete masonry arc surface radius and inclined angle of inclined plane

Abstract

The invention discloses a method for measuring the radius of a concrete masonry arc surface. The method comprises the steps that 1 a laser infrared range finder is placed in a circular section of a measured arc of concrete masonry, and a point A, a point B and a point C are sequentially illuminated to the measured arc in order; 2 the light rotation angle of an illuminator is measured; 3 the distance from the position O' point of the illuminator to the point A, the point B and the point C is measured; 4 a laser infrared range finder central processor runs to calculate the radius R of the measured arc according to the cosine theorem; 5 the angle values alpha1, alpha2 and beta measured in the second step, the distance values L1, L2 and L3 measured in the third step and the radius R value of acircumscribed circle are displayed on a laser infrared range finder display, wherein the radius R value is calculated in the fourth step. The method provided by the invention has the advantages thatthe radius of the concrete masonry arc surface is fast and accurately measured; pillars and channels of a support post are fast and accurately bent and processed on the construction site; and the installation and construction efficiency of the support post is improved.

Description

technical field [0001] The invention relates to a method for measuring the construction of concrete pouring objects, in particular to a method for measuring the radius of the arc surface of a concrete masonry and the inclination angle of an inclined plane. Background technique [0002] Support and hanger products are widely used in tunnels, bridges, railways, pipe galleries, nuclear power plants, urban buildings and other projects. The current domestic construction procedure is to fix the support and hanger to the concrete with expansion bolts after concrete pouring. However, in tunnels, subways, and other projects, the concrete surface is arc-shaped, such as Figure 4 As shown, before the support and hanger 6 is fixed to the concrete masonry 7 during construction, the support and hanger column 8 or the rear channel must be bent into a corresponding arc to ensure that the support and hanger column 8 or the rear channel are installed Finally, it can be close to the surface of...

AI Technical Summary

Problems solved by technology

At present, the method used in engineering construction is to use cardboard to measure the surface arc of concrete masonry 7 and then manually calculate its radius value. This method is not only cumbersome in the measurement process, but also difficult to ensure the accuracy of measurement and construction efficiency. The bending radius of the bent support column 8 or the rear channel product does not match the arc of the surface of the concrete masonry 7, causing the product to be scrapped

In addition, when installing support and hanger products on concrete masonry walls with a certain inclination angle, the above-mentioned problems still exist

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