A positioning method for the supporting column of the intercooling tower

Abstract

The invention relates to a positioning method for the supporting platform column of the intermediate cooling tower, which comprises the following steps: 1) determining the central position pile of the intermediate cooling tower; 2) placing a total station on the edge of the foundation pit of the intermediate cooling Based on the center position pile and another control pile, determine the four points on the circle where the centers of the cap columns are located, namely, the east, the south, the west, and the north, draw the radii of these four points respectively, and Draw the points on the circle where the innermost point and the outermost point of all cap columns are located. At the same time, use the total station to release the center position of the initial column and draw the radius of the center; 3) place the center of all cap columns Draw the circle; 4) According to the distance between the adjacent cap pillars, with the starting pillar as the reference, find the position of the center point of each cap pillar in turn on the circle where the centers of all cap pillars are located. The invention uses a circle drawing tool to simplify the wire-laying operation process and make the operation simple and easy.

Description

technical field [0001] The invention relates to the technical field of electric power construction, in particular to a positioning method for an intercooling tower cap column. Background technique [0002] At present, the general intercooling tower is a concrete intercooling tower, which has the disadvantages of long construction period and complicated construction process. A steel structure inter-cooling tower is designed on the basis of a concrete inter-cooling tower, which is the first in the world. The foundation of the steel-structure inter-cooling tower is designed with cap pier, cooling triangular support column, connecting beams and plates, which reduces the number of foundation steel bars and Concrete volume, make full use of backfill soil as counterweight. This kind of steel structure intercooling tower has the advantages of fast construction, etc. The pier and supporting column take root from the foundation cap, and the upper part is designed with connecting beam...

AI Technical Summary

Problems solved by technology

This kind of steel structure intercooling tower has the advantages of fast construction, etc. The pier and supporting column take root from the foundation cap, and the upper part is designed with connecting beams and 0m slabs. Therefore, in the construction process of the intercooling tower, the cap pier and The positioning of support columns, the existing method is to position and set out all columns, the total number of cap columns and support columns is 430, if all columns are positioned and set out, the workload of setting out is huge and the period of setting out In addition, the foundation of the intercooling tower is a ring foundation. Considering the economic effect when excavating the foundation pit, only the ring foundation part is excavated, and the middle position inside the intercooling tower is not excavated. Because the depth of the foundation pit exceeds 8m, the ring foundation The radius of the center is more than 80m, so it is impossible to use the theodolite to set out the line based on the center of the intercooling tower under this condition, and it is also not feasible to use the self-center lead to draw a circle, and then determine the center point of the cap column and support column on the circle However, in the prior art, there is no relatively feasible method for fast and accurate positioning of the intercooling tower cap column and support column

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