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A joint surface roughness calculation method based on shape correction

A calculation method and roughness technology, which is applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problem of large description errors of roughness coefficients, failure to consider joint surface undulations, and inability to fully describe joint surfaces, etc. problems, to achieve the effect of real and accurate calculation results, accurate calculation results, and precise roughness data

Active Publication Date: 2019-03-29
SOUTHEAST UNIV
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art. Most of the existing theoretical methods only consider the roughness characteristics of a certain aspect of the rock joint surface, which cannot fully describe the situation of the joint surface, resulting in relatively large description errors of the roughness coefficient. large, and does not consider the undulating shape of the joint surface, which expands the problem of error

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  • A joint surface roughness calculation method based on shape correction
  • A joint surface roughness calculation method based on shape correction
  • A joint surface roughness calculation method based on shape correction

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Embodiment Construction

[0043] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0044] The present invention designs a joint surface roughness calculation method based on shape correction, which calculates the rock joint surface based on the roughness of the entire joint surface rather than a single profile curve, and fully considers the influence of factors such as the slope and width of the rock joint surface protrusion roughness, the method includes the following steps:

[0045] Step 1. On the rock joint surface to be measured, establish an x-y coordinate system; it is possible but not limited to place the rock joint surface in the first quadrant of the coordinate system, such as figure 1 shown.

[0046] Step 2. Draw grid lines that are parallel to the x-axis and y-axis in the established x-y coordinate system and have a spacing of d, so as to obtain the grid and grid points, that is, draw the grid, and set the grid spacing to d. This imp...

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Abstract

The invention discloses a joint surface roughness calculation method based on shape correction, which comprises the following steps of: on the rock joint surface to be measured, establishing an x- y coordinate system; drawing gridlines; determining a standard horizontal plane and obtaining the elevation of each grid point; selecting the measurement direction, drawing a parallel straight line alongthe measurement direction and taking the calculation point; according to the height of each grid point and the coordinates of the calculated points, the height of each calculated point is obtained bylinear interpolation; calculating the height difference between adjacent calculation points, and marking it as interval section; analyzing the fluctuation state of the whole rock joint surface, judging the slope section according to the height difference, counting the number and length of the interval section contained in each slope section, and making correction calculation; calculating the final roughness statistics of each interval to get the roughness statistics of each straight line and the roughness statistics of the whole rock joint surface. Based on the influence of the whole joint surface and the rock joint surface, the invention can obtain the roughness statistical value in different directions, and the calculation result is more accurate.

Description

technical field [0001] The invention relates to a method for calculating joint surface roughness based on shape correction, and belongs to the technical field of geotechnical engineering measurement. Background technique [0002] In geotechnical engineering, roughness is an important factor affecting the mechanical properties of rock structural surfaces. For example, the shear strength of structural surfaces and the seepage characteristics of joint fissures are closely related to the roughness of structural surfaces. In many engineering applications , all need to estimate the roughness of the rock joint surface. In engineering applications, it is found that the existing methods for determining the roughness coefficient have the following disadvantages and deficiencies: most of the existing theoretical methods only consider the roughness characteristics of a certain aspect of the rock joint surface, and cannot fully describe the situation of the joint surface, such as the joi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/00
Inventor 张琦张斌黄钺赵学亮李建春俞涛张宸浩王宁
Owner SOUTHEAST UNIV
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