BIM-based deformation monitoring method for deep foundation pit

Abstract

The invention relates to a BIM-based deformation monitoring method for a deep foundation pit. The BIM-based deformation monitoring method comprises the following steps of establishing a three dimensional model of the shape, the retaining structure, the periphery environment and the monitoring points of the foundation pit through a BIM; introducing monitoring data in the established three dimensional model; generating a foundation pit deformation model by reading introduced monitoring data of the three dimensional model, and converting the monitoring data into space three dimensional coordinates, wherein each deformation monitoring point is a space coordinate point in the model; enabling the space coordinates of each monitoring point to be connected to form a deformation curve of monitoring holes; outputting a deformation numerical value cloud chart: performing superimposition and error detection on the deformation model of one discretionary time point and an initial model so as to obtain the deformation numerical value cloud chart of the time point; and obtaining a judgment conclusion that the deformation situation of the foundation pit is normal, abnormal or dangerous according to the deformation numerical value cloud chart. The BIM-based deformation monitoring method disclosed by the invention solves the problem that the deformation situation and the deformation trend of the retaining structure of the foundation pit cannot be visually presented in the deformation monitoring process of the retaining structure of the foundation pit in the past.

Description

technical field [0001] The invention relates to a deep foundation pit deformation monitoring method, in particular to a BIM-based deep foundation pit deformation monitoring method. Background technique [0002] With the acceleration of urbanization and the improvement of construction level, foundation pit engineering has developed rapidly in terms of overall quantity, excavation depth and application fields. Although some progress has been made in the research on deep foundation pits in soft soil, the research on its deformation and mechanical properties is not perfect, which makes the calculation model and assumptions deviate greatly from the actual situation of the project, resulting in foundation pit support engineering. The deformation estimation of the project is not very accurate, thus affecting the safety and cost of the project. Therefore, it is very important to monitor the foundation pit envelope and surrounding environment in the construction project. Especially...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a BIM-based deep foundation pit deformation monitoring method. The BIM-based deep foundation pit deformation monitoring method solves the problem that in the past, in the deformation monitoring process of the foundation pit enclosure structure, the deformation cannot be intuitively displayed. Disadvantages of case and deformation tendency