Construction risk grade determination method and device based on shield construction parameters and medium

Abstract

The invention provides a construction risk grade determination method based on shield construction parameters, and the method comprises the steps: S1, carrying out the risk identification of an actual shield tunnel project, and building a risk index system composed of shield tunnel project risk evaluation indexes; S2, determining the evaluation grade of the shield tunnel engineering risk and the evaluation standard of the evaluation index according to the actual situation; S3, determining the weight of the shield tunnel engineering risk evaluation index in the S1 by using an analytic hierarchy process; S4, based on the evaluation standard in the S2, calculating the connection degree of each evaluation index in the S1 by using an improved set pair analysis method; S5, revising the connection degree of each evaluation index obtained in the step S4 based on the weight obtained in the step S3 to obtain a comprehensive connection degree, and determining the risk level of each ring of the shield tunnel according to the comprehensive connection degree and the risk evaluation level in the step S2. The invention further provides a construction risk grade determination device based on the shield construction parameters and a medium, and the accuracy of risk analysis is remarkably improved.

Description

technical field [0001] The invention relates to the field of water resources and environment, in particular to a method, device and medium for determining a construction risk level based on shield construction parameters. Background technique [0002] With the continuous development of my country's urban rail transit construction, the shield method tunnel construction technology has been more and more widely used because of its economical efficiency. Shield construction may face many unpredictable dangers. Reasonable shield construction parameters play a vital role in shield tunneling; improper setting of shield parameters may cause ground subsidence or uplift, excavation surface instability and tunnel suddenness. Mud gushing water, etc., resulting in delays in the construction period and cost overruns and other losses. Therefore, it is necessary to conduct reasonable analysis and research on shield tunneling parameters, carry out risk assessment and control research, and d...

AI Technical Summary

Problems solved by technology

[0005] In view of the defects of the existing set pair analysis method in determining the risk level of urban water quality, the present invention proposes a determination method, device and medium for directly evaluating the construction risk level based on s

Images