Method for analyzing three-dimensional stability of submarine slope based on strength reduction method

An analysis method, a technology of reduction method, applied in the field of three-dimensional stability analysis of submarine slopes based on the strength reduction method, can solve the problems that cannot meet the research and engineering accuracy

Inactive Publication Date: 2016-08-31
SECOND INST OF OCEANOGRAPHY MNR
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most ABAQUS finite element slope stability studies are based on the results obtained from traditional two-dimensional and three-dimensional finite element models, which can no longer meet the needs of research and engineering precision. A finite element that can specifically reflect the seabed topography is needed. Modeling to complete the numerical calculation work in the early stage of seabed slope stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for analyzing three-dimensional stability of submarine slope based on strength reduction method
  • Method for analyzing three-dimensional stability of submarine slope based on strength reduction method
  • Method for analyzing three-dimensional stability of submarine slope based on strength reduction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Because the ABAQUS program model construction ability is not strong, especially dealing with the complex seabed surface is even more powerless. The GOCAD program can meet this requirement. GOCAD can quickly generate topographic surfaces through CAD. If the terrain is kriging interpolated by the finite difference method through the Surfer program, the three-dimensional topography will be smoother. The grid generated by GOCAD is consistent with the grid shape required by ABAQUS (hexahedral grid) and can be exported as an Excel file, which creates the possibility for the realization of the interface.

[0065] Based on the above discussion, the technical route of stability analysis is as follows: 1. Import the original CAD contour map into GOCAD for pre-processing to form basic contour points; 2. Import the generated contour into Surfer and use Gram Rigger interpolation method for data interpolation, and then import back to the GOCAD program to form the seabed surface; 3. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for analyzing three-dimensional stability of a submarine slope based on a strength reduction method.The method comprises following steps: S1, selecting a region to be analyzed; S2, performing pre-treatment to the region to be analyzed; S3, generating an exported excel file to be an ABAQUS import file. inp through an ABAQUS value interface program; S4, constructing a self-weight stress field; S5, making stability analyses; S6, analyzing a value calculating result.The method for analyzing three-dimensional stability of the submarine slope based on the strength reduction method has following beneficial effects: through the ABAQUS value interface program, the model can be exported into the ABAQUS; and calculations can be accurately made and corresponding research results can be obtained.

Description

technical field [0001] The invention relates to a slope stability analysis method, in particular to a three-dimensional stability analysis method of a seabed slope based on a strength reduction method. Background technique [0002] With the development of offshore engineering in my country, the potential geological hazards of the seabed, especially the instability of seabed slopes, have increasingly become an important factor threatening offshore engineering. Submarine landslide refers to the phenomenon that unconsolidated soft sediments or rocks with weak structural planes on the submarine slope slide along the weak structural planes in the slope under the action of external force. The research on the stability analysis method of submarine slope is still in the development stage. With the emergence and development of finite element, it is possible to analyze the stability and deformation of structures by using strict stress-strain method, which is gradually applied to the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 来向华张恒胡涛骏黄潘阳
Owner SECOND INST OF OCEANOGRAPHY MNR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap