A method and device for reconstructing an ellipsoid model of a rock mass surface crack

An ellipsoid model and ellipsoid technology, applied in the field of rock mass analysis, can solve problems such as difficulty in establishing a relationship for simplified fracture fields, difficulties in theoretical analysis of geometric features, and difficulty in studying the theoretical relationship between simplified fracture fields and damage to elastic properties of rock mass, etc.

Active Publication Date: 2022-05-31
CHINA COAL RES INST
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Problems solved by technology

[0005] However, there are some problems in using the ball-and-stick model for crack simplification: the ball-and-stick model uses two different geometries: sphere and rod. Due to the difficulty in theoretical analysis of geometric features, it is difficult to theoretically combine the crack field of the ball-and-stick model with solids. It is difficult to study the theoretical relationship between the simplified fracture field and the elastic properties of the rock mass and the failure to establish a relationship between the mechanical theories; moreover, the surface cracks play a leading role in the rock mass, and at the same time, the surface cracks have a direct impact on the mechanical properties of the rock mass, while the ball and bat The model can only simplify pores and fractures

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  • A method and device for reconstructing an ellipsoid model of a rock mass surface crack
  • A method and device for reconstructing an ellipsoid model of a rock mass surface crack
  • A method and device for reconstructing an ellipsoid model of a rock mass surface crack

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Embodiment Construction

[0103] The objective function of the face fracture ellipsoid reconstruction is established. Triangular fracture surface ellipsoid reconstruction is a dual-objective constrained optimization

[0109] Wherein, is the ellipsoid section radius, is the triangular area, .

[0110] The two-dimensional space triangular fracture surface ellipsoid reconstruction is shown in Figure 2.

[0147]ifABC⊥𝑥𝑂𝑦

[0148]ifABC⊥y𝑂z

[0149] Project the points A, B, C, and M to the coordinate plane 𝑥𝑂z

[0152] endif

[0155] endif

[0157] Convert the dual-objective constrained optimization problem shown in formula (1) into a single-objective constrained optimization problem;

[0164] List the KKT conditions:

[0170]

[0183] In order to realize the embodiment, the present invention also proposes another computer device, comprising: a memory, a processor and

[0184] As shown in FIG. 5, the non-transitory computer-readable storage medium includes a memory 810 of instructions, an interface 830, th...

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Abstract

The invention proposes a method and equipment for reconstructing the ellipsoid model of cracks on the surface of rock mass. The method adopts the ellipsoid model to intuitively express the distribution characteristics of cracks and pores, and at the same time conducts statistical analysis on the distribution characteristics of cracks and pores in samples to realize the analysis of the distribution characteristics of cracks and pores. Quantitative description; the present invention adopts ellipsoid to reconstruct rock mass surface fissure field, simplifies the surface fissure field inside rock mass to ellipsoid fissure, which is convenient to describe in mathematical geometry, and establishes simplified fissure field and rock mass physical and mechanical properties and deformation The theoretical relationship between failures is of great significance to the development of fractured rock mechanics theory.

Description

An ellipsoid model reconstruction method and equipment for rock face fractures technical field The present invention relates to rock mass analysis technical field, relate in particular to a kind of ellipsoid model reconstruction method of rock mass face fissure, Apparatus, computer equipment, and storage media. Background technique There is a large amount of primary fissures in the rock mass in nature, when carrying out geotechnical engineering construction, due to human interference The increase or release of internal stress in the diagenetic body leads to changes in the stress field, and new fractures are also generated in the intact rock mass. Currently, domestic A large number of geotechnical projects are being built outside, especially China is in a period of rapid development of infrastructure, transportation, water conservancy, energy, mining Mountain, national defense and other projects are inseparable from rock mass. In general, geotechnical engineering in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G16C10/00G06F111/04G06F119/14
CPCG06F30/20G16C10/00G06F2111/04G06F2119/14
Inventor 王守光穆鹏宇王嘉敏李春元崔春阳杨冠宇张海宽李海涛齐庆新
Owner CHINA COAL RES INST
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