Numerical simulation method of high-level landslide impact shoveling and the process of sinking into the underlying layer

A technology of numerical simulation and digital elevation data, applied in design optimization/simulation, CAD numerical modeling, electrical digital data processing, etc., it can solve the problem that the simulation results are far different, the physical and mechanical properties of the underlying material are not considered, and the amount of calculation is large. And other issues

Active Publication Date: 2021-05-14
INST OF GEOMECHANICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] (1) The existing numerical simulation schemes 1 and 2 are relatively large in calculation amount and poor in calculation efficiency, and cannot quickly evaluate the impact shoveling effect of landslides;
[0008] (2) The existing numerical simulation method is based on the empirical method of shovel rate, without considering the actual physical and mechanical properties of the underlying material, and the simulation results are far from the actual situation;
[0009] (3) Most of the simulation results of the existing numerical simulation method 2 depend on the software parameter adjustment of particles and particles, particles and motion paths, and the simulation reliability is relatively poor compared with the actual situation

Method used

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  • Numerical simulation method of high-level landslide impact shoveling and the process of sinking into the underlying layer
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  • Numerical simulation method of high-level landslide impact shoveling and the process of sinking into the underlying layer

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Embodiment Construction

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0076] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The embodiment of the present invention provides a numerical simulation method for high-level landslide impact shoveling and the process of importing the underlying layer, including: S1, the establishment of the landslide geometric model and the underlying layer geometric model; S2, the establishment of the underlying layer material model and Parameter selection; S3, numerical simulation calculation; S4, post-processing of calculation results; S5, comparative analysis of results. The embodiment of the present invention provides a numerical simulation method for high-level landslide impact shoveling and the process of importing the underlying layer, using SPH and SDPH calculation methods, using dynamic contact and D-P failure criteria as judgment conditions, providing a Simulate the process of impact scraping the underlying layer after the high-level start of the sliding body, and cause the material of the underlying layer to yield and then flow into the sliding body.

Description

technical field [0001] The invention relates to the technical field of geological disaster dynamics, in particular to a numerical simulation method for high-level landslide impact shoveling and the process of sinking into the underlying layer. Background technique [0002] In recent years, with the rapid development of social economy, the scale of human engineering activities has gradually increased, and high-level rock landslides frequently occur in mountainous areas in western my country. High-level rock landslides are different from debris flows, and have greater impact energy during movement. Once the surrounding mountains come into contact with high-speed sliding bodies, they will inevitably be loaded passively, forming an impact scraping effect, leading to damage or secondary landslides, and Change the motion state of the landslide and increase the hazard of the landslide. However, it may be difficult to record and capture the scooping phenomenon during the landslide,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/25G06F30/28G06F111/10G06F113/08G06F119/14
CPCG06F30/25G06F30/28G06F2111/10G06F2113/08G06F2119/14
Inventor 高杨陈福振殷跃平李滨高浩源
Owner INST OF GEOMECHANICS
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