Tunnel lining crack disease evaluation method and equipment
An evaluation method and lining technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as high requirements for mechanical modeling and parameter acquisition, unfavorable engineering operation and application, and achieve objective, accurate, and simple grade evaluation of evaluation results. Effect
Pending Publication Date: 2021-05-07
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology
Method 1 is widely used in engineering, but relies on subjective assignment or expert experience, and is greatly affected by human factors; Method 2 has high requirements for mechanical modeling and parameter acquisition, which is not conducive to practical engineering applications
It can be seen that for the health diagnosis of tunnel lining crack disease, the current related technologies still have certain limitations.
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[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, the technical features in each embodiment or a single embodiment provided by the present invention can be combined arbitrarily with each other to form a feasible technical solution. This combination is not restricted by the sequence of steps and / or structural composition mode, but it must be Based on the ability of those skilled in...
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The invention provides a tunnel lining crack disease evaluation method and equipment. The method comprises the following steps: acquiring images of tunnel lining cracks, and overlapping the images to obtain a tunnel lining crack distribution plane image; in combination with depth information of the crack, simplifying the crack into an approximate triangular prism, and performing image processing on the tunnel lining crack distribution plane image to generate a tunnel lining crack triangular prism three-dimensional image; adopting a box counting method of a three-dimensional fractal theory to obtain fractal dimensions of the three-dimensional image of the triangular prism of the tunnel lining crack; and according to the fractal dimension, dividing the disease grade of the tunnel lining crack. Grade evaluation can be simply and conveniently carried out on the tunnel lining crack disease, the evaluation process does not depend on subjective assignment or expert experience, and the evaluation result is objective and accurate.
Description
technical field [0001] The embodiments of the present invention relate to the field of health diagnosis of tunnel structures, and in particular to a method and equipment for evaluating cracks in tunnel linings. Background technique [0002] Tunnels will be affected by various structural diseases during the operation stage. If effective evaluation and measures are not taken in time, not only economic losses will be caused, but serious diseases will also affect the lives and property safety of the people. Among them, cracks are one of the most common and serious diseases of tunnel lining. Cracks in tunnel lining not only reduce the safety of lining and destroy the stability of tunnel, but also cause other diseases such as water leakage, which affect the normal use of tunnels. . At present, there are mainly two evaluation methods for tunnel lining crack damage. One is to conduct fuzzy comprehensive evaluation and health classification of tunnels based on crack characteristic i...
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IPC IPC(8): G06T7/00G06T7/11G06T17/10
CPCG06T7/0002G06T17/10G06T7/11G06T2207/10004G06T2207/20021
Inventor 朱泽奇黄敏盛谦陈国良杨启航
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI