Real-time detection method for compactness of poured vault

A technology for real-time detection and compactness, which is applied in the direction of measuring devices, material inspection products, and processing detection response signals, etc., can solve problems such as inconvenient operation and construction, and achieve the effect of meeting the requirements of vault compactness monitoring and simple and reliable testing methods

Pending Publication Date: 2020-08-28
CHINA RAILWAY CONSTR HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The detection units used in similar methods will be buried by concrete, so it is necessary to reassemble the relevant detection units (such as electrode sheets) before each lining construction operation, which brings inconvenience to the operation and construction

Method used

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  • Real-time detection method for compactness of poured vault
  • Real-time detection method for compactness of poured vault
  • Real-time detection method for compactness of poured vault

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Embodiment Construction

[0038] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.

[0039] Such as figure 1 As shown, a kind of perfusion vault compactness real-time detection method provided by the invention, its specific steps are as follows:

[0040] A. Install the acoustic wave testing device under the vault template;

[0041] B. Establish an off-line sound wave waveform database on the host computer through the method of actual measurement;

[0042] C. During the construction process, the transmitting unit of the acoustic wave testing device transmits the acoustic wave signal to the vault template in real time, and receives it in real time through the receiving unit of the acoustic wave testing device;

[0043] D. The host computer compares the detected waveform data transmitted by the receiver with the data in the acoustic wavefor...

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Abstract

The invention provides a real-time detection method for the compactness of a poured vault. The real-time detection method comprises the following specific steps of: mounting an acoustic wave testing device below an vault template; establishing an offline acoustic waveform database; transmitting an acoustic wave signal to the vault template by a transmitting unit, and receiving the acoustic wave signal by a receiving unit; comparing detected waveform data transmitted back by a receiver with data in the acoustic waveform database in real time by an upper computer, and matching a waveform with the highest overlap ratio with the current compactness echo in the database; and performing measurement compactness degree judgment on the matching degree of the waveform data by the upper computer. Byadopting the real-time detection method, the vault compactness monitoring in the whole process of concrete pouring and solidification can be effectively met, and the quality of secondary lining is practically guaranteed; and a non-contact vault detection mode is adopted, the device is mounted on a vehicle, any operation such as paving a detection piece before construction is not needed, and the simplest, more convenient and more reliable test method is provided.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a modular detection method for real-time detection of the concrete pouring state of a secondary lining trolley. Background technique [0002] During the construction of the secondary lining of the tunnel, due to the special position of the vault, the reservation of the grouting and the unreasonable setting of the plugging holes may cause the slump of the pumped concrete to be large and the pressure of the pumped concrete to be poorly controlled. , Concrete shrinkage, uneven support and other reasons will inevitably cause the second-lined vault and the concrete primary support surface to not be closely attached, and the concrete capping of the arch is prone to voids and cavities. Due to secondary lining defects, the stress on the lining is uneven, which deteriorates the stress condition of the lining and changes the stress state of the lining design. The actu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/07G01N29/12G01N29/44G01N33/38
CPCG01N29/04G01N29/07G01N29/12G01N29/4427G01N33/383
Inventor 刘飞香廖金军苏亮徐震易达云蒋海华祝爽陈望伍容
Owner CHINA RAILWAY CONSTR HEAVY IND
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