Abstract
Geodetic control measurements play an important part because they provide information about the current state of repair of the construction, which has a direct impact on the safety assessment of its exploitation. Authors in this paper have focused on control measurements of the elevator shaft. The article discusses the problem of determining the deviation of elevator shaft walls from the vertical plane in the local 3D coordinate system. It presents a concept of estimation of measurements results base on the parametric method with conditions on parameters. The simulated measurement results were used to verify the concept presented in the paper.
Highlights
An important aspect in the context of using the structure is to ensure its safety
Geodetic control measurements are made in order to obtain information about the structure behaviour [1, 2]
Determination of the deviation of the shaft walls from the vertical plane is based on the designation of adjusted XY coordinates of control points for each measuring level, while defining the deviation from the horizontal plane is based on the designation of the adjusted H coordinates of those points
Summary
An important aspect in the context of using the structure is to ensure its safety. For this reason, geodetic control measurements are made in order to obtain information about the structure behaviour [1, 2]. The whole system of an elevator consist of a large number of devices and mechanical systems Only their proper fitting in the shaft space and the optimum selection of dimensions allow for ensure the reliability and proper exploitation of the elevator shaft. This article proposes the concept of estimation of an elevator shaft control measurements results in the local 3D coordinate system ( XYH ) where the conditions for adjustment at individual measurement stages are determined for two dimensions ( XY ) of the control points and for elevations ( H ). Determination of the deviation of the shaft walls from the vertical plane is based on the designation of adjusted XY coordinates of control points for each measuring level, while defining the deviation from the horizontal plane is based on the designation of the adjusted H coordinates of those points. The object of measurement are values on the reference level ( a, b, c, d, e, f , g ) and values on each measuring levels ( a j , b j , c j , d j , e j , f j , g j , where j – number of measuring level)
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