Deformation-equivalence based automatic comprehensive deformation modulus calculating method for arch-dam foundations

A deformation modulus and calculation method technology, applied in calculation, special data processing applications, instruments, etc., can solve problems such as low efficiency, high error rate, difficulty in inspection and review, and achieve comprehensive data, improved calculation efficiency, and shortened calculation cycle. Effect

Active Publication Date: 2015-01-28
POWERCHINA CHENGDU ENG
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is: an automatic calculation method of the comprehensive deformation modulus of the arch dam foundation based on deformation equivalent, which solves the error rate caused by manu...

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  • Deformation-equivalence based automatic comprehensive deformation modulus calculating method for arch-dam foundations
  • Deformation-equivalence based automatic comprehensive deformation modulus calculating method for arch-dam foundations

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Embodiment Construction

[0026] According to the requirements of "Code for Design of Concrete Arch Dams" DL / T 5346-2006, the basic method for structural stress analysis of arch dams is the arch-beam load sharing method. Comprehensive deformation modulus calculation parameters. The main terms are explained below:

[0027] (1) Trial-load method: Discretize the whole arch dam into two systems of horizontal arch and cantilever beam. Load distribution, in this way the method of arch dam stress calculation.

[0028] (2) Comprehensive deformation modulus: In a specific area of ​​the foundation, considering the influence of various rock mass structures (including weak structural planes and strips) and foundation treatment measures on the deformation of the dam foundation, the specific area The heterogeneous foundation in , according to the principle of deformation equivalence, is transformed into the deformation modulus of the homogeneous foundation.

[0029] The automatic calculation method of the compreh...

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Abstract

The invention relates to the parameter acquiring technology of arch dam design and discloses a deformation-equivalence based automatic comprehensive deformation modulus calculating method for arch-dam foundations with an aim to solve problems about high error rate, low efficiency and difficulty in checking due to a manual modeling mode in the traditional technology. The method includes A), determining the scopes of models according to arch abutment positions, performing searching in a mode that deformation tends to be stable and restrain through comparison of different scopes of the models on influence of arch abutment displacement, and determining the comprehensive deformation modulus finite element standardization model; B), based on the comprehensive deformation modulus finite element standardization model, through comparison of different arch abutment section numbers on influence of the arch abutment deformation, and searching in the mode the deformation tends to be stable and restrain, determining the minimum arch abutment section numbers meeting requirements, and performing meshing on model units; C), acquiring unit parameters of composite materials in the models in an area-weighted calculation mode; D), automatically calculating the comprehensive deformation modulus. The method is applied to design of the arch dams.

Description

technical field [0001] The invention relates to an arch dam design parameter acquisition technology, in particular to an automatic calculation method for the comprehensive deformation modulus of an arch dam foundation based on deformation equivalent, and belongs to the field of hydraulic engineering arch dam design. Background technique [0002] The latest version of "Code for Design of Concrete Arch Dams" (DL / T 5346-2006) requires that the comprehensive deformation modulus of the dam foundation be calculated using the principle of deformation equivalent, but the specification does not elaborate on the relevant principles and methods of deformation equivalence. Therefore, at present, when using the arch-beam load sharing method to analyze the structural stress of arch dams, in addition to the deformation equivalent method, the acquisition of the comprehensive deformation modulus parameters of the dam foundation is still mainly carried out by empirical methods and comprehensiv...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 尹华安王仁坤胡云明刘翔张敬赵永刚邵敬东
Owner POWERCHINA CHENGDU ENG
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