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Method and system suitable for fine reconstruction of tunnel engineering rock mass structure

A tunnel engineering and refined technology, applied in tunnels, earthwork drilling, instruments, etc., can solve the problems of not considering the distribution characteristics of different types of rock structures and the laws of geological action, and reducing the modeling accuracy of 3D models of rock structures. , to achieve the effect of facilitating large-scale popularization and application, improving data accuracy, and improving modeling accuracy

Active Publication Date: 2021-01-12
SHANDONG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

After years of development, the rock mass structure simulation has realized the transition from two-dimensional to three-dimensional, from a single random Monte Carlo generation to a simulation that considers the coupling of deterministic and random rock mass structural planes, which meets the requirements of refined modeling to a certain extent. requirements, but the construction process simply adds deterministic structural surfaces to the model body, without considering the distribution characteristics and geological action laws of different types of rock mass structural surfaces in actual engineering
The inventors found that for underground projects such as tunnels, in addition to the large-scale structural surfaces exposed on the surface, there are still a large number of large-scale structural surfaces inside the rock mass. If they are ignored, the modeling of the 3D model of the rock mass structure will be reduced to a certain extent. precision

Method used

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  • Method and system suitable for fine reconstruction of tunnel engineering rock mass structure
  • Method and system suitable for fine reconstruction of tunnel engineering rock mass structure
  • Method and system suitable for fine reconstruction of tunnel engineering rock mass structure

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Embodiment 1

[0032] refer to figure 2 , a method suitable for fine reconstruction of tunnel engineering rock mass structure in this embodiment, including:

[0033] Step 1: Obtain the area range of the 3D model of the rock mass structure, and obtain the boundary surface of the model body.

[0034] Specifically, the area range of the 3D model of the rock mass structure is established based on the actual project, for example, the lower left corner of the cube is used as the coordinate origin, and the appropriate size (x, y, z) value is selected.

[0035] Step 2: Generate deterministic structural surfaces and deductive structural surfaces of the 3D model of rock mass structure in sequence, and remove the plane part outside the boundary of the 3D model of rock mass structure.

[0036] Specifically, the actual survey and collected data are interpreted, the least square method is used for plane fitting, and deterministic structural surfaces are generated in the model volume as primary structura...

Embodiment 2

[0096] This embodiment provides a system suitable for fine reconstruction of rock mass structure in tunnel engineering, including:

[0097] (1) A module for obtaining the boundary surface of the model body, which is used to obtain the area range of the three-dimensional model of the rock mass structure, and obtain the boundary surface of the model body.

[0098] Specifically, the area range of the 3D model of the rock mass structure is established based on the actual project, for example, the lower left corner of the cube is used as the coordinate origin, and the appropriate size (x, y, z) value is selected.

[0099] (2) Deterministic and deducible structural surface generation module, which is used to sequentially generate deterministic structural surfaces and deducible structural surfaces of the 3D model of rock mass structure, and remove plane parts outside the boundaries of the 3D model of rock mass structure.

[0100] Specifically, the actual survey and collected data are...

Embodiment 3

[0109] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the steps in the above-mentioned method suitable for fine reconstruction of rock mass structure in tunnel engineering are implemented.

[0110] In this embodiment, through the tunnel engineering rock mass structure exploration system, the deterministic, deducible and random structural planes are established as the model body structural planes, and further based on the idea of ​​partition reconstruction, the large-scale structure determined by the deterministic structural planes and deducible structural planes The scale geological interface divides the engineering area into independent areas of different sizes, and further combines the distribution of geological characteristics of the rock mass structure in each area, and uses the Monte Carlo stochastic simulation method to generate random structural planes, eliminates the part ov...

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Abstract

The invention provides a method and system suitable for fine reconstruction of a tunnel engineering rock mass structure. The method suitable for fine reconstruction of the tunnel engineering rock massstructure comprises the steps that the three-dimensional model area range of the rock mass structure is obtained, and a model body boundary surface is obtained; a deterministic structural plane and adeductive structural plane of the rock mass structure three-dimensional model are sequentially generated, and a plane part outside the boundary of the rock mass structure three-dimensional model is removed; a partition structure body in a rock mass structure three-dimensional model body region is identified; a random structural plane in each partitioned rock mass structural body is generated through a Monte Carlo random simulation method in combination with the geological characteristic distribution rule of each partitioned rock mass structural body, and the outer side part of the random structural plane which is not included in each partitioned rock mass structural body is deleted by taking an area where the center of a disc of the random structural plane is located as an attribution area; and a complete rock mass structure three-dimensional model body is constructed.

Description

technical field [0001] The invention belongs to the field of rock mass structure simulation, and in particular relates to a method and system suitable for fine reconstruction of rock mass structure in tunnel engineering. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] As an important analysis method for the development of rock mechanics, rock mass structure simulation plays an important role in the analysis of isolated rock mass, the distribution law of underground fissure water and seepage characteristics. After years of development, the rock mass structure simulation has realized the transition from two-dimensional to three-dimensional, from a single random Monte Carlo generation to a simulation that considers the coupling of deterministic and random rock mass structural planes, which meets the requirements of refined modeling to a certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14E21F17/00G06T17/05
CPCE21D9/14E21F17/00G06T17/05
Inventor 刘洪亮李尚安李利平李术才周宗青孙子正胡杰周申秦承帅范宏运杨光宇
Owner SHANDONG UNIV
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