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Anti-strong earthquake performance prediction and evaluation method of nuclear power plant breakwater

A performance prediction and evaluation method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as the inability to consider the effect of seismic traveling waves, shorten the design period, reduce time and capital investment, and accurately and the effects of sound scientific guidance

Active Publication Date: 2017-01-18
SHANGHAI JIAO TONG UNIV SUBEI RES INST
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Problems solved by technology

In this paper, the plastic model is used to simulate the seismic response of the breakwater, but the research is based on a two-dimensional model, and the traveling wave effect during the earthquake cannot be considered

Method used

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  • Anti-strong earthquake performance prediction and evaluation method of nuclear power plant breakwater
  • Anti-strong earthquake performance prediction and evaluation method of nuclear power plant breakwater
  • Anti-strong earthquake performance prediction and evaluation method of nuclear power plant breakwater

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Embodiment Construction

[0032] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0033] Such as figure 1 As shown, the fully nonlinear dynamic analysis process used in this example. The calculation step is to perform static mechanical calculation first to obtain the correct initial stress field, and then perform dynamic calculation and analysis. Issues such as grid size, material parameters, dynamic boundary conditions, damping type, and seismic wave adjustment need to be considered before dynamic calculation.

[0034] Such as figure 2 As shown, this example uses a parallel computing method based on contact load balancing to predict and evalua...

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Abstract

The invention discloses a method for predicting and evaluating strong earthquake resistance of a nuclear power station breakwater. The method includes the steps of firstly, building three-dimensional finite element models of the breakwater and a seabed foundation; secondly, performing working condition simulation on the earth and breakwater structure initial stress guided into the breakwater three-dimensional finite element model to obtain the initial stress state of the breakwater system; thirdly, adding external simulation conditions to the initial state breakwater system three-dimensional finite element model, and then using an explicit nonlinear finite element method to solve on a super computer platform to obtain the earthquake response of the breakwater; fourthly, evaluating the earthquake resistance of the breakwater according to the dynamic earthquake response of the breakwater system obtained in the third step. By the method, calculating efficiency and precision can be increased, design construction period of the breakwater can be shortened, and accurate and reasonable scientific guidance is provided with earthquake resistance design of the breakwater system and similar coasting defense projects.

Description

technical field [0001] The invention relates to a method in the technical field of seismic safety of breakwaters, in particular to a method for predicting and evaluating the anti-strong earthquake performance of breakwaters of nuclear power plants. Background technique [0002] In recent years, the country has gradually realized the importance of nuclear power development and vigorously developed nuclear power resources. In the next 15 to 20 years, my country will build 24 large nuclear power plants with a total installed capacity of 40 million kilowatts. The nature of nuclear power resources determines their inherent radioactive hazards. How to safely utilize nuclear power resources is bound to become the primary factor to be considered in the development of nuclear power. Most of the sites of nuclear power plants are near the sea, and the breakwater, as a coastal defense project for nuclear power plants, can resist the threat of sea tides and tsunamis to the nuclear power ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G06F17/50
Inventor 杨勋金先龙王欢欢楼云峰王小庆张伟伟
Owner SHANGHAI JIAO TONG UNIV SUBEI RES INST
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