Method of adjustment in combination with cycles in monitoring horizontal deformation of high-rise building furniture walls using geodetic method

Abstract

Diaphragm walls are often used to support excavation walls during the construction phase of high-rise building basements. During this construction phase, a large amount of soil and rock is removed. The pressure of surrounding soil and rock will cause the diaphragm wall to move. Monitoring of diaphragm walls to determine the true nature of the movement process of the diaphragm wall, from which measures can be taken to ensure safety for the project and neighboring structures. Processing of measurement data in each monitoring cycle must be done in the same coordinate system or altitude selected from the first cycle according to the general process: Evaluate the stability of the base point, adjust the monitoring network, and calculate the deformation displacement parameters. This article discusses the data processing combined with measurement cycles, taking into account the analysis of the displacement of monitoring landmarks between cycles in monitoring the horizontal displacement of high-rise building diaphragm walls using a total station. The calculation results show that the coordinate accuracy of monitoring points has been improved.