Prediction and analysis method and device for reliability of true stress of concrete dam point
A concrete dam, true stress technology, applied in design optimization/simulation, instrument, geometric CAD, etc., can solve the problems of difficult to meet engineering safety assessment, difficult to reflect the working state of concrete dam, single safety factor, etc.
Active Publication Date: 2021-04-23
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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[0002] At present, the point stress reliability analysis of concrete dams mainly depends on the design survey data, which is difficult to reflect the current working status of concrete dams; on the other hand, a single safety factor is usually used for evaluation, which is difficult to meet the needs of actual engineering safety evaluation
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[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0023] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The embodiment of the present application provides a method and device for predicting and analyzing the reliability of the real stress of concrete dam points, which obtains the first integral finite element model based on the concrete dam and its foundation, and analyzes the construction process and water storage of the concrete dam according to the obtained monitoring data. The finite element simulation analysis is carried out in the process, and the calculation parameters of the first overall finite element model are adjusted according to the analysis results, so that the deformation calculation process line is consistent with the deformation monitoring process line, and the second overall finite element model corresponding to the current state of the concrete dam is obtained. metamodel. Based on the above monitoring data and the second overall finite element model, the point stress reliability of the concrete dam is calculated. In this way, the failure probability of the concrete dam under real working conditions can be obtained.
Description
technical field [0001] The present application relates to the technical field of structural stability analysis, in particular to a method and device for predicting and analyzing the reliability of real stress of concrete dam points. Background technique [0002] At present, the point stress reliability analysis of concrete dams mainly depends on the design survey data, which is difficult to reflect the current working status of concrete dams; on the other hand, a single safety factor is usually used for evaluation, which is difficult to meet the needs of actual engineering safety evaluation . Contents of the invention [0003] In view of this, one of the purposes of the embodiments of the present application is to provide a method and device for predicting and analyzing the reliability of the real stress of concrete dam points, so as to at least partially improve the above-mentioned problems. [0004] In order to achieve the above purpose, the embodiment of the present ap...
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IPC IPC(8): G06F30/23G06F30/13G06F119/02G06F119/14
Inventor 刘毅商峰张国新聂鼎周秋景叶儿肯戴继宏孙伟孙治仁
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES