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Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy

An anisotropic, laser scanning technology, used in 3D modeling, design optimization/simulation, image data processing, etc., can solve the problem of not obtaining the anisotropic calculation formula, not obtaining the anisotropic solution method, and unable to reflect the RQD Anisotropy etc.

Inactive Publication Date: 2021-03-09
SHAOXING UNIVERSITY
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Problems solved by technology

Deer proposed the concept of borehole RQD in 1964. Due to the following two shortcomings in the application of borehole RQD: whether the threshold value of 100 mm is reasonable for different engineering scale rock masses; the drilling direction of the borehole is limited, and the obtained RQD can only reflect local rock mass conditions, but cannot reflect RQD anisotropy
[0011] The anisotropy of RQD directly affects the quality of the rock mass, and the mechanism of the influence of RQD anisotropy on the quality of the rock mass has not yet been explored clearly
In terms of the threshold t, no scholars have given the calculation method of the optimal threshold t, so the RQD based on the optimal threshold t has not been obtained. t Anisotropy calculation formula, and the RQD that can best reflect the quality of rock mass has not yet been obtained t Anisotropy solution method

Method used

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  • Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy
  • Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy
  • Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy

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Embodiment Construction

[0204] The present invention will be further described below with reference to the accompanying drawings.

[0205] refer to Figure 1 to Figure 5 , a laser-scanning, RQD, RQD-based t Anisotropic Q anisotropy solution method, including the following steps:

[0206] 1) Rapid acquisition of structural plane 3D laser scanning, the process is as follows:

[0207]1.1: According to the scanning target and site conditions, select the location of the scanning machine and set up a tripod. During the erection, it is necessary to ensure that the instrument can completely obtain the three-dimensional point cloud information of the slope rock mass according to a certain scanning route, and at the same time, the tripod table should be ensured as much as possible. level, and place control targets;

[0208] 1.2: Place the scanner host on the tripod table, fix the knob, center the bubble of the host by coarsely adjusting the tripod and fine-tuning the scanner base, and set the scanner port p...

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Abstract

A Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy belongs to the field of Q anisotropy solving, and comprises the following steps: (1) quickly obtaining structural plane three-dimensional laser scanning; (2) drawing a structural surface pole diagram and an inclined rose diagram; (3) making rock mass quality calculation based on RQD indexes; (4) generating and sectioning a rock mass three-dimensional fracture network model; (5) drawing an RQDt anisotropy diagram; (6) an optimal threshold t solving method based on RQD inversion; (7) arranging an RQDt anisotropy solving method; and (8) arranging a Q anisotropy solving method. Three-dimensional laser scanning, an affinity propagation algorithm, an RQD theory, a fracture network model, a generalized RQD theory and inversion calculation are combined, the optimal threshold t and anisotropy of RQDt are solved, Q anisotropy is solved, and the Q anisotropy solving method based on laser scanning, RQD and RQDt anisotropy is provided. The method is clear, and is suitable for anisotropy solution of the rock mass Q.

Description

technical field [0001] The invention relates to a laser scanning, RQD, RQD t Anisotropic Q anisotropy solution method, especially the present invention is based on three-dimensional laser scanning, nearest neighbor propagation algorithm, RQD index, crack network model and generalized RQD theory, inversion calculates RQD t The range of optimal threshold t and the optimal threshold t value, gives the RQD t Anisotropic solution method, and based on RQD t Anisotropy, the solution method of Q anisotropy is given, and a method based on laser scanning, RQD, RQD t The method for solving anisotropic Q anisotropy belongs to the field of solving Q anisotropy. Background technique [0002] The appearance and quality of the rock mass strongly depend on the degree of anisotropy of the rock mass, and the stability of the rock mass is determined by the quality of the rock mass. Some geological phenomena have also proved this point. For example, during the excavation process of a roadwa...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06T17/00G06K9/62G06Q10/06
CPCG06F30/20G06T17/00G06Q10/06395G06T2207/10008G06T2207/10028G06F18/23
Inventor 胡高建周长冰张贺
Owner SHAOXING UNIVERSITY
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