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Layer-quality detection method for rock-fill concrete structure and layer-quality evaluation method for rock-fill concrete structure

A quality inspection method and rockfill concrete technology, which are applied in measuring devices, instruments, and analysis of solids using sonic/ultrasonic/infrasonic waves, etc., can solve the problems of lack of non-destructive testing technology and limited testing methods for the quality of the interlayer junction surface. Achieve the effect of low cost and high precision

Active Publication Date: 2017-12-08
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +3
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Problems solved by technology

At present, the non-destructive testing technology for the quality of the interlayer joint surface of rock-fill concrete structures after construction is still lacking, and the testing methods are relatively limited.

Method used

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  • Layer-quality detection method for rock-fill concrete structure and layer-quality evaluation method for rock-fill concrete structure
  • Layer-quality detection method for rock-fill concrete structure and layer-quality evaluation method for rock-fill concrete structure
  • Layer-quality detection method for rock-fill concrete structure and layer-quality evaluation method for rock-fill concrete structure

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Experimental program
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Embodiment

[0053] Using the wave detection device consisting of a data collection device, a wave detector and an elastic wave excitation device, the elastic wave data are collected for the rock-fill concrete structure of the dam when the maintenance age is 2d, 7d, 14d, 28d and 90d.

[0054] Wherein, the distance between the detector and the elastic wave excitation device is 1 m. During the detection process, the elastic wave excitation device-geophone array is set along the upstream and downstream direction of the dam. After the elastic wave data is collected at the first detection point, the wave detection device is placed along the Translate in a straight line, and the distance of each movement is 1m. Collect the elastic wave data corresponding to the detection point after each movement.

[0055] After the detection along the above detection line is completed, the wave detection device is translated in the direction perpendicular to the upstream and downstream, and after the translati...

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Abstract

The invention discloses a layer-quality detection method for a rock-fill concrete structure and a layer-quality evaluation method for the rock-fill concrete structure and relates to the technical field of the rock-fill concrete structure detection. The detection method comprises the following steps of: establishing a corresponding relation of the number of detection points of elastic-wave data, the impact response intensity of the detection points, average impact response intensity and spatial variability of impact response intensity, and obtaining the layer-quality characteristic of the rock-fill concrete structure. The layer-quality detection method can be used for carrying out nondestructive detection of the rock-fill concrete structure to obtain the layer-quality characteristic of the corresponding rock-fill concrete structure and reflect the layer-quality distribution condition. The evaluation method comprises the following steps of: evaluating the layer quality of the rock-fill concrete structure by utilizing the layer-quality characteristic of the rock-fill concrete structure obtained by the layer-quality detection method for the rock-fill concrete structure. The evaluation method utilizes the spatial variability of impact response intensity obtained by the detection method to draw a spatial curve for evaluation, can be used for controlling the layer quality of a dam and has an important significance for improving the construction quality and optimizing the construction management.

Description

technical field [0001] The invention relates to the technical field of detection of rock-fill concrete structures, in particular to a method for detecting the quality of a rock-fill concrete structure level and a method for evaluating the quality of a rock-fill concrete structure level. Background technique [0002] In recent years, with the development of large-scale infrastructure construction in my country, engineering quality accidents have occurred from time to time. Therefore, the quality inspection of geotechnical engineering, especially the quality inspection of concrete structure engineering, is becoming more and more important, and the requirements for inspection are getting higher and higher. At the same time, the collection of detection data is also particularly important. The accuracy and intuitiveness of data directly determine the utilization value and practical effect of data. [0003] In the current application of concrete construction technology, Rock Fil...

Claims

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Application Information

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IPC IPC(8): G01N29/04
CPCG01N29/045G01N2291/0232G01N2291/0289G01N2291/102
Inventor 刘毅周虎冯少孔商峰金峰安雪晖彭冬黄涛聂鼎陈峰柳春娜李风亮吴琼孙伟杨璐菲王恒吕航
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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