A deformation analysis method used in tunnel excavation process

Abstract

The invention relates to a deformation analysis method for use in a tunnel excavation process, comprising acquiring a first set of monitored deformation quantities and a first set of deformation influencing factors that are spatially and temporally associated with each other during at least one tunnel construction process; drawing at least one relationship diagram indicative of a regular relationship between at least a portion of the deformation amount in the first monitoring deformation amount set and at least a portion of the influencing factors in the first deformation influence factor setbased on the first monitoring deformation amount set and the first deformation influence factor set according to a preset condition; carrying out quantitative analysis on at least one relationship diagram and constructing a prediction model according to the quantitative analysis result; the deformation of the currently excavated tunnel being predictively analyzed by a prediction model according toa second set of monitored deformation quantities and / or a second set of deformation influencing factors of the currently excavated tunnel. The prediction model of the invention can be continuously improved and adjusted based on the actual construction data so as to provide more accurate data support for the constructors and the designers.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a deformation analysis method used in the tunnel excavation process. Background technique [0002] Due to the characteristics of concealment, uncertainty and variability, the construction of tunnels and other underground projects is difficult, and it is easy to cause various project quality accidents and safety accidents, which seriously affect the safety, quality and progress of project construction. The purpose of construction monitoring measurement is to monitor the deformation of surrounding rock and structure in a timely and accurate manner, analyze the monitoring measurement data, make early warnings and forecasts, and take necessary measures as soon as possible to avoid accidents. [0003] Although tunnel construction monitoring and measurement work has been carried out in our country for more than ten years, in general, its implementation and application in specific con...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a deformation analysis method used in the tunnel excavation process. The present invention can use the first monitoring deformation amount set and the first deformation influencing factor set in the tunnel construction process to draw the relationship Graph, and based on the quantitative analysis of the relationship graph to build a prediction model, so that the prediction model can be continuously improved and adjusted based on the actual construction data, so that the deformation analysis of the excavated tunnel is more accurate, so as to provide more construction personnel and designers. Accurate data support, in addition, it also reduces the safety risk of road operations, reduces the investment of personnel, solves the problem that monitoring points cannot be monitored in time during the construction process, effectively avoids human operation errors and human data operation errors, and guides construction with information technology It is more timely and effective, and the timeliness of data is strengthened, providing more timely decision-making time for safety risk management

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