Concrete disengaging detection system

A detection system and concrete technology, which can be used in measuring devices, instruments, scientific instruments, etc., and can solve the problems of cumbersome and inconvenient operation procedures and low efficiency.

Active Publication Date: 2018-11-13
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 system to solve the problems in the prior art that the operating procedures are very cumbersome, inconvenient and inefficient when using the neutron scattering method to detect voids and cavity depths

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Embodiment Construction

[0027] 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.

[0028] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0029] 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

The invention is suitable for the technical field of neutron detection, and provides a concrete disengaging detection system. The system includes a measuring instrument and a host, the measuring instrument comprises a neutron source; the neutron source is placed on a steel plate covering the surface of the concrete and is used for emitting fast neutron to the concrete; the measuring instrument isused for measuring the thermal neutron counting rate at two different positions far from the neutron source on the steel plate, and sending the counting rate ratios of the thermal neutron counting rates at the two positions obtained by calculation to the host; the host is used for acquiring the thickness of the steel plate, and finding the corresponding relation between the received counting rateratio and the concrete disengaging depth according to the thickness; and determining the concrete disengaging depth corresponding to the counting rate ratio according to the corresponding relation. According to the embodiment of the invention, a lot of tedious operations are saved, and the actual efficiency of the concrete disengaging depth measurement is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of neutron detection, in particular to a concrete void detection system. 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 lining when the project is put into operatio...

Claims

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Application Information

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IPC IPC(8): G01B15/00
CPCG01B15/00G01B15/02G01N23/005G01N33/383
Inventor 朱洪叶卫列王东
Owner SHENZHEN SINO NUCLEAR CO CREATION TECH CO LTD
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