High-rise building measurement control point projection positioning auxiliary device and using method thereof

Abstract

The invention relates to a high-rise building measurement control point projection positioning auxiliary device and a using method thereof. The device consists of an upper cover plate, a lower cover plate and a laser receiving target, wherein the upper cover plate is connected with the lower cover plate through a connecting shaft; the lower cover plate is covered with the upper cover plate; an upper cover lock of the upper cover plate is aligned to a lock hole of a lower bottom plate; the lower cover plate is internally provided with four rectangular holes; positioning adjusting screw rods are arranged on four sides of the rectangular holes; the positioning adjusting screw rods are provided with bolts; the laser receiving target is arranged into a groove in match with the laser receiving target, in the lower cover plate; elevation points are formed on the plate frame of the lower cover plate. In high-rise building construction measurement, when an internal control method is used, the device is used for receiving laser when a laser plummet is adopted to transmit a bottom layer control point to an upper-layer construction floor, positioning lines are moved by moving the bolts on the positioning adjusting screw rods, and the point location is confirmed through cross points of positioning lines. The device is capable of permanently preserving the control point location, protecting projection holes and improving the construction security; meanwhile as the device is provided with elevation control points, the problems that in the construction process, the elevation control points are not high in precision and the control point location is not stable are solved.

Description

technical field [0001] The invention relates to an auxiliary device for projection and positioning of high-rise building measurement control points and a use method thereof, belonging to the field of construction engineering measurement, and is an auxiliary component for the transmission of control points in the construction measurement of high-rise buildings by a laser plummet and a total station. Background technique [0002] During the construction of high-rise buildings, the construction measurement of the underground structure whose elevation is lower than the slope of the foundation pit generally uses control points outside the foundation pit for direct stakeout. This method is called the external control method; when the building reaches the first floor, Generally, 4 elevation and plane control points are set on the floor of the first floor, and the 4 control points form an elevation and plane control network, so that the control network can measure and control the bui...

AI Technical Summary

Problems solved by technology

[0006] 2. After the point projected to the upper floor is translated, the number of measurements is increased, and the measurement error and the probability of measurement error are increased;

[0007] 3. After the four control points are projected onto the upper floor, the control network composed of them will produce a large cumulative error through translation, and it is not easy to measure and check;

[0008] 4. The projection hole is more dangerous

At this time, if a small object falls, it will damage the equipment and even cause damage to the construction personnel.

And in the daily construction process, it may also cause physical injury to the construction personnel, so there is also a huge danger;

[0009] 5. In the current construction process, the elevation control points are generally drawn on the floor or building walls with paint. Due to the rapid changes in the construction site, this method determines the unstable points, and the points are easy to be damaged in subsequent construction.

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