Comprehensive evaluation method of roller compacted concrete dam layer characteristics and states

Abstract

The invention provides a comprehensive evaluation method of roller compacted concrete dam layer characteristics and states. The comprehensive evaluation method comprises the following steps of (1) determining target problem influencing factors and layers, sufficiently considering influencing factors of the roller compacted concrete dam layer characteristics and states in practical engineering, and building a deformation index, transfusion index and stress index layering evaluation system; (2) determining estimation scales, standards and measuring methods of evaluation indexes; (3) building a deformation, transfusion and stress monitoring model for roller compacted concrete dam; (4) adopting a G1 method to empower the evaluation indexes; and (5) conducting comprehensive evaluation on the roller compacted concrete dam layer characteristics and states through cloud model conversion of ground floor evaluation indexes and comprehensive cloud calculation of a last layer indexes. The comprehensive evaluation method is based on a cloud model and uses real time monitoring data of the roller compacted concrete dam to serve as an analysis basis, overcomes the defect that a traditional method can only evaluate certain point or certain time of the roller compacted concrete layer, and achieves dynamic and comprehensive evaluation of the roller compacted concrete dam layer characteristics and states.

Description

technical field [0001] The invention relates to a comprehensive evaluation method for the behavior of the roller compacted concrete dam surface. Background technique [0002] Roller compacted concrete dams have the characteristics of small size, high strength, good seepage resistance, etc., and have the advantages of simple and fast construction of earth-rock dams. Since its inception, roller compacted concrete dam technology has aroused the general interest of engineers from all over the world and has been widely promoted . The layered construction characteristics of RCC dams determine that RCC dams have dozens or even hundreds of rolling layers. These construction layers are weak links in the RCC dam structure, which may cause water leakage from the dam body, increased uplift pressure, Reduced shear strength, reduced safety, etc. At present, the performance evaluation of the RCC dam surface is mainly based on the comprehensive evaluation of the measured data and test dat...

AI Technical Summary

Problems solved by technology

The layered construction characteristics of RCC dams determine that RCC dams have dozens or even hundreds of rolling layers. These construction layers are weak links in the RCC dam structure, which may cause water leakage from the dam body, increased uplift pressure, Reduced shear strength, decreased safety, etc.

At present, the performance evaluation of the roller compacted concrete dam is mainly based on the comprehensive evaluation of the measured data and the test data. Since the test data can only reflect the behavior of the roller compacted concrete dam at a certain point and at a certain time, the state of the roller compacted concrete dam is ignored. A dynamic spatial system, resulting in evaluation results that are often not comprehensive and accurate

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