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Method of designing dam-reservoir water coupled dynamic model test on vibration table

A technology of dynamic model and design method, applied in the field of hydraulic structure engineering and model test research

Active Publication Date: 2015-10-14
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0003] The invention provides a design method based on a dam body-reservoir water coupling dynamic model test on a shaking table. The design method of this test can be used to study the influence of the upstream reservoir water on the dynamic response of the dam body under earthquake action, and solves the problem of the test process. The model material and the leakage problem of the contact surface between the dam body model and the water tank, and solved the problem of using a finite size water tank to simulate the infinite reservoir upstream of the dam body and the hydrodynamic pressure test of the upstream surface of the dam body

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  • Method of designing dam-reservoir water coupled dynamic model test on vibration table

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Embodiment 1

[0052] Embodiment 1: as Figure 1-6 As shown, based on the design method of the dam body-reservoir water coupling dynamic model test on the shaking table, the specific steps of the design method based on the dam body-reservoir water coupling dynamic model test on the shaking table are as follows:

[0053] Step1. According to the hydraulic design drawings of the prototype dam and the geometric dimensions and bearing capacity of the shaking table, use the similarity theory to design the geometric dimensions of each part of the two-dimensional model dam body and the layout of various related monitoring equipment, see figure 1 ;

[0054] Step2. According to the similarity scale theory and the geometric scale of the original model dam body designed in Step1, determine the main physical and mechanical parameters such as density, elastic modulus and Poisson's ratio required by the model material, so as to determine the simulation model material The matching ratio and maintenance age...

Embodiment 2

[0064] Embodiment 2: as Figure 1-6 As shown, based on the design method of the dam body-reservoir water coupling dynamic model test on the shaking table, the specific steps of the design method based on the dam body-reservoir water coupling dynamic model test on the shaking table are as follows:

[0065] Step1. According to the hydraulic design drawings of the prototype dam and the geometric dimensions and bearing capacity of the shaking table, use the similarity theory to design the geometric dimensions of each part of the two-dimensional model dam body and the layout of various related monitoring equipment, see figure 1 ;

[0066] Step2. According to the similarity scale theory and the geometric scale of the original model dam body designed in Step1, determine the main physical and mechanical parameters such as density, elastic modulus and Poisson's ratio required by the model material, so as to determine the simulation model material The matching ratio and maintenance age...

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Abstract

The invention relates to a method of designing a dam-reservoir water coupled dynamic model test on a vibration table, which belongs to the field of hydraulic structure engineering and model test study. A geometrical size of each part of a two-dimensional model dam section and a layout scheme for each related monitoring device are firstly designed; main physical and mechanical parameters of the model material are determined; the dam model is cast, and each test instrument is buried in advance according to the well-designed layout scheme; a water tank which simulates the reservoir is lifted to the upstream side of the model dam; a reservoir tail energy dissipation device is placed at one end, far away from the model dam, inside the water tank; and after the model dam and the water tank which simulates the reservoir are assembled and the test instruments are assembled and connected, a model dam seismic dynamic simulation test is begun. According to the method of the invention, the theory is simple and easy to understand, the construction process is simple, and hydrodynamic pressure borne by the upstream dam and influences on a dam dynamic response by the upstream reservoir water in the case of an earthquake can be accurately measured in a lab.

Description

technical field [0001] The invention relates to a design method based on a dam body-reservoir water coupling dynamic model test on a shaking table, and belongs to the field of hydraulic structure engineering and model test research. Background technique [0002] The dynamic interaction between the upstream reservoir water and the dam body under the earthquake has an important influence on the dynamic response of the dam body itself. The difficulties in conducting the dam body-reservoir water coupling seismic dynamic model test on the shaking table lie in various aspects: one is the selection of model materials; during the dynamic model test, the dam body model must be compared according to the similarity ratio according to the test requirements and the characteristics of the shaking table. Ruler to shrink the prototype dam body. While reducing the geometric size of the prototype dam body, the mechanical properties of the materials used to make the dam body model, such as st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
Inventor 王铭明王海军闫毅志武亮
Owner KUNMING UNIV OF SCI & TECH
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