A kind of concrete void detection method, device and terminal equipment

A detection method, concrete technology, applied to measuring devices, material analysis using radiation diffraction, instruments, etc., can solve the problems of cumbersome and inconvenient operation procedures and low efficiency

Active Publication Date: 2020-07-07
SHENZHEN SINO NUCLEAR CO CREATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a concrete void detection method, device and terminal equipment to solve the problem of very cumbersome and inconvenient operation procedures and low efficiency in the prior art when neutron scattering method is used to detect void and cavity depth. question

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  • A kind of concrete void detection method, device and terminal equipment
  • A kind of concrete void detection method, device and terminal equipment
  • A kind of concrete void detection method, device and terminal equipment

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Embodiment Construction

[0025] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0026] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0027] Existing techniques for using neutrons to detect voids in concrete all use a neutron source to emit fast neutrons to steel plates and concrete, and then use a single thermal neutron detector for thermal neutron detection to determine whether there is a void in th...

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Abstract

A concrete void detection method and apparatus, a terminal device, and a medium. The method comprises: reading a thermal neutron count rate N1 of a first thermal neutron detector and a thermal neutron count rate N2 of a second thermal neutron detector, and calculating a count rate ratio of N1 to N2, wherein a distance between the first thermal neutron detector and a neutron source is less than a distance between the second thermal neutron detector and the neutron source; acquiring the thickness of a steel plate covering a concrete surface, and searching for a correspondence between the count rate ratio and a concrete void depth according to the thickness of the steel plate; and determining, according to the correspondence, the concrete void depth corresponding to the count rate ratio. The method reduces cumbersome operations, and improves efficiency of concrete void depth measurement.

Description

technical field [0001] The invention belongs to the technical field of neutron detection, and in particular relates to a concrete void detection method, device and terminal equipment. Background technique [0002] In modern large-scale hydropower projects, traffic engineering and other buildings, there are often concrete buildings that need to be lined with steel plates or composite stress structures, usually pressurized tunnels or pipe holes, large-scale traffic immersed tube structures, high-speed rail track slabs, etc. For pressurized tunnels, large-scale traffic immersed tube structures, etc., due to some unavoidable technical problems in construction and site working conditions, the quality of pouring is affected, making it difficult to fill and compact concrete, especially at the joint surface between steel plate and concrete. void defect. These hollow and void defects are huge hidden dangers that directly cause deformation, instability and damage of the steel plate l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/20
CPCG01N23/20G01N23/09G01N33/383
Inventor 朱洪叶卫列王东
Owner SHENZHEN SINO NUCLEAR CO CREATION TECH CO LTD
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