Calculation method and system for accumulation process of rockfill concrete rockfill body

Abstract

The present invention provides a calculation method and system for the accumulation process of rock-fill concrete rock-fill bodies, wherein the method includes: establishing a three-dimensional model of the initial state of the rock-fill blocks, and the rock-fill blocks include a certain number of rock bodies; according to the finite element / The discrete element coupling analysis method analyzes the accumulation process and final accumulation form of the three-dimensional model. The method that combines the finite element method for simulating structural stress and deformation with the discrete element method that can track block motion is called the finite element / discrete element coupling analysis method. This method retains the respective advantages of finite element and discrete element, and can To solve the problems of multi-body kinematics and failure mechanics, in the process of calculating the final accumulation shape of rock-fill concrete rock-fill blocks, there are many rock bodies, complex forces, and deformation of rock-fill bodies with changes in force The characteristic is that the mechanical analysis of the present invention can completely describe the progressive accumulation process of the rock-fill blocks under the action of stress, and the calculation result is more accurate.

Description

technical field [0001] The invention relates to the technical field of construction engineering simulation, and more particularly, to a calculation method and system for the accumulation process of rockfill concrete rockfill bodies. Background technique [0002] Mass concrete occupies an important position in modern engineering construction, especially in water conservancy and hydropower engineering construction. More than 10 million cubic meters of large-volume concrete is poured in water conservancy and hydropower projects in my country every year. In addition, large-volume concrete is often used in ports, airport buildings, and heavy machine foundations. Rockfill concrete reduces the amount of cement by using a large number of rocks (particle size greater than 30cm), thereby effectively reducing the heat of hydration and reducing CO2 emissions. Low heat, easy temperature control, high construction quality, low construction cost and other characteristics, so it has broad a...

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Problems solved by technology

[0003] During the construction of rock-fill concrete, the accumulation process and final accumulation form of the rock-fill concrete have a great influence on the mechanical properties of the formed rock-fill concrete. However, due to the high cost of the experiment and the shape of the rock-fill body in the actual project The pattern is complex, so it is difficult to carry out more accurate experiments to analyze the actual project, so it is an inevitable trend to carry out numerical calculation methods to analyze and calculate the accumulation process of rockfill concrete rockfill bodies

But so far, how to accurately simulate and calculate the accumulation process and accumulation state of rockfill concrete has not yet had any results and methods for reference.

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