Deep foundation pit risk assessment method based on data fusion analysis

Abstract

The invention discloses a deep foundation pit risk assessment method based on data fusion analysis. A foundation pit engineering three-dimensional digital model constructed according to a computer aided technology can completely record and vividly display all pieces of information of foundation pit construction and can automatically generate a construction log and a monitoring report, so that a constructor or a technicist can execute operation conveniently, and the work for recording complicated construction information of foundation pit engineering is eliminated. By a finite element analysis technology and the conventional risk assessment method for static assessment, single-monitoring-item dynamic assessment and multi-monitoring-item relevance assessment, the shortcoming of fuzzy judgment of the conventional risk assessment method is overcome; through a large amount of data fusion, a series of risk sources in an engineering progress process can be comprehensively judged, and a targeted strategy is supplied; and the intelligence degree is extremely high. According to the method, a learning mode can be adopted; and a risk judgment rule is added or corrected, so that the risk assessment accuracy can be continuously completed.

Description

technical field [0001] The invention relates to a construction risk assessment method for deep foundation pit engineering of housing construction, rail transit, municipal facilities and other projects, in particular to a deep foundation pit risk assessment method based on data fusion analysis. Background technique [0002] With the rapid development of underground space development at home and abroad, foundation pit engineering presents a trend of "big, deep, tight, and close", and its construction difficulty and risk are increasing. How to control the construction risk of deep foundation pit engineering has become a concern at home and abroad hotspots. Deep foundation pit engineering has the characteristics of regionality, comprehensiveness, and uncertainty, and the risks faced by different foundation pit projects are also different. With the progress of the project, the same foundation pit project is affected by changes in geological conditions and construction conditions...

AI Technical Summary

Problems solved by technology

In fact, before the accident, the monitoring data showed certain signs that the project was facing great risks. However, the risk assessment method based on expert judgment did not determine the real source of risk, which eventually led to the tragedy.