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Construction waste discrete element three-dimensional model construction method

A technology of construction waste and 3D model, applied in 3D modeling, image data processing, instruments, etc., can solve the problem of less research and application

Active Publication Date: 2020-01-31
HUBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research and application of using clump to simulate irregular particles in actual numerical simulation experiments is relatively small, especially the simulation test analysis of mixed materials. Therefore, the present invention aims to provide a method for establishing a discrete element three-dimensional model of mixed irregular particles

Method used

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  • Construction waste discrete element three-dimensional model construction method
  • Construction waste discrete element three-dimensional model construction method
  • Construction waste discrete element three-dimensional model construction method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] A method for building a discrete element three-dimensional model of construction waste, comprising:

[0042] Step 1, processing construction waste, crushing and screening the construction waste into two types of concrete blocks and bricks, and stacking the concrete blocks and bricks in different levels according to the size of the concrete blocks and bricks;

[0043] Step 2. Refer to figure 1 As shown, the sample profile is obtained according to the co...

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Abstract

The invention provides a construction waste discrete element three-dimensional model construction method, and relates to the technical field of construction waste recycling. According to material characteristics of construction waste, an irregular particle profile diagram is obtained, a particle cluster (clump) model which is more practical is established to replace traditional spherical particlesto simulate irregular particles, a mixed material contact model is established through PFC3D to carry out simulation test analysis on a mixed material, and the problem that an actual test instrumentis difficult is solved. The method mainly comprises the following steps: treating the construction waste, obtaining profile diagrams of concrete and bricks, defining a contact model of the construction waste through PFC3D software, preparing a sample, simulating a direct shear test, calibrating parameters and outputting data. Some problems in the implementation process, including profile diagram acquisition, contact definition, sample preparation and parameter calibration, are explained in detail.

Description

technical field [0001] The invention relates to the technical field of construction waste reuse, in particular to a method for constructing a discrete element three-dimensional model of construction waste. Background technique [0002] As a by-product of human development, construction waste will affect the surrounding environment and foundation to a certain extent whether it is traditionally stacked in the open air or buried. A large amount of construction waste is produced in cities every year, so it is very important to deal with and recycle construction waste. [0003] The demolished construction waste blocks are relatively large, so they need to be crushed. The treated construction waste is similar to the coarse-grained soil in geotechnical engineering, with a larger maximum particle size and a smaller minimum particle size. For particles with such a large span and large particle size, the traditional triaxial test, shear It is difficult to measure its mechanical prop...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06F30/20G16C60/00
CPCG06T17/00G16C60/00
Inventor 李丽华黄时强肖衡林胡智马强刘一鸣田密裴尧尧廖新超程博文
Owner HUBEI UNIV OF TECH
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