Abstract
The issues of ensuring the safe construction and operation of buildings and structures in a metropolis are considered. A description of the monitoring technique is given, which is to control the deformation process during new construction near existing buildings. The necessity of performing geodetic observations of deformations of the earth’s surface is emphasized. A precalculation of the accuracy of determining the position of deformation grades located in the influence zone of an object under construction is given. Based on the simulation results, control zones are identified in which it is proposed to monitor the process of deformation of the soil mass at the boundary of the pit. The advantages of the integrated deformation monitoring technique over traditional observation methods are presented.
Highlights
Geodetic monitoring of deformations of the object under construction is a complex of geodetic works that is carried out during the building and is intended to ensure the reliability, preserve the technical condition of the surrounding buildings, as well as preserve the environment
According to research by All-Russian Research Institute of Mining Geomechanics and Survey, one of the indicators characterizing the dangerous effect on existing objects is the horizontal extension of the earth's surface
The horizontal deformations of the earth's surface are determined by the difference in the distances between the deformation marks obtained from two observation cycles by the polar method
Summary
Geodetic monitoring of deformations of the object under construction is a complex of geodetic works that is carried out during the building and is intended to ensure the reliability, preserve the technical condition of the surrounding buildings, as well as preserve the environment. The horizontal deformations of the earth's surface are determined by the difference in the distances between the deformation marks obtained from two observation cycles by the polar method. RMS error determining the position of the deformation point by the polar method is calculated by the formula:. According to formula (11), the error in determining the position of the deformation point depends on the magnitude of the measured distance and the errors in measuring the distance and horizontal angle by an electronic tachymeter. A precalculation of the accuracy of linear-angular measurements with redundant measurements in the network and its subsequent adjustment by a strict method was performed
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