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Concrete emptying detection method, device, and terminal equipment

A detection method and concrete technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of cumbersome and inconvenient operation procedures and low efficiency

Active Publication Date: 2018-09-18
SHENZHEN SINO NUCLEAR CO CREATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Concrete emptying detection method, device, and terminal equipment
  • Concrete emptying detection method, device, and terminal equipment
  • Concrete emptying 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 technologies that use neutrons to detect voids in concrete use a neutron source to emit fast neutrons to steel plates and concrete, and then use a single thermal neutron detector to perform thermal neutron detection to determine whether there is a void i...

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Abstract

The invention belongs to the technical field of neutron detection, and provides a concrete emptying detection method, device, and terminal equipment. The method comprises following steps: reading thethermal neutron counting rate N1 of a first thermal neutron detector and the thermal neutron counting rate N2 of a second thermal neutron detector, calculating the counting rate ratio of N1 to N2, wherein the distance between the first thermal neutron detector and a neutron source is smaller than the distance between the second thermal neutron detector and the neutron source; obtaining the thickness of a steel plate that covers the surface of concrete, based on the thickness of the steel plate, finding the corresponding relationship between the counting rate ratio and concrete emptying depth;and based on the corresponding relationship, determining the concrete emptying depth corresponding to the counting rate ratio. The method has the advantages that a large amount of tedious operation isreduced, and the efficiency on measuring the concrete emptying depth is largely improved.

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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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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