Novel construction lofting method under invisible condition of known points

Abstract

The invention discloses a novel construction lofting method under an invisible condition of known points. A virtual resection method is adopted, and an instrument does not need to be erected at a resection point to observe the known points. The novel construction lofting method is characterized by comprising the following steps: setting two temporary working base points between the resection point and the two known points, wherein an extension line intersection point of the two known points and the two temporary working base points is a virtual resection point; solving coordinate values of the two temporary working base points according to a geometrical relationship among all the points, and further calibrating a position of a to-be-lofted point on a construction site. According to the method, the lofting operation can be completed by utilizing a common total station, and a process is simple, and a new choice is provided for the construction lofting of a building dense area.

Description

technical field [0001] The invention relates to a new method for setting out in construction under the condition that the known points on the construction site cannot be seen through and it is difficult to determine the temporary reference point through the rear. Background technique [0002] Urban construction sites are often narrow and change rapidly, resulting in changes in the visibility of known points set before construction, making it difficult to use conventional methods for stakeout. Although GPS technology can be used for stakeout without having to see through known points, most construction units are not equipped with this equipment, and in densely built areas, the signal is not good, which also affects the GPS measurement effect. Contents of the invention [0003] The purpose of the present invention is to provide a new method of construction stakeout under the condition of no visibility of known points, the method can use the commonly used total station to com...

AI Technical Summary

Problems solved by technology

[0002] Urban construction sites are often narrow and change rapidly, resulting in changes in the visibility of known points set before construction, making it difficult to use conventional methods for stakeout

Although GPS technology can be used for stakeout without having to see through known points, most construction units are not equipped with this equipment, and in densely built areas, the signal is not good, which also affects the GPS measurement effect

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