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Spatial-compactness detection method for rock-fill concrete structure and spatial-compactness evaluation method for rock-fill concrete structure

A technology for detection of rockfill concrete and compactness, which is applied in the processing of detection response signals and the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids. Guaranteed stability and safety, high precision effect

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

At this stage, the non-destructive testing technology for the space density of the joint surface between layers of rock-fill concrete structures after construction is still lacking, and the testing methods are relatively limited.

Method used

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  • Spatial-compactness detection method for rock-fill concrete structure and spatial-compactness evaluation method for rock-fill concrete structure
  • Spatial-compactness detection method for rock-fill concrete structure and spatial-compactness evaluation method for rock-fill concrete structure
  • Spatial-compactness detection method for rock-fill concrete structure and spatial-compactness evaluation method for rock-fill concrete structure

Examples

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Embodiment

[0057] Using a geophone array with 10 geophones, the elastic wave data of the rock-fill concrete structure of the dam were collected during the maintenance ages of 2d, 7d, 14d, 28d and 90d.

[0058] Wherein, the distance between two adjacent detectors is 1m. During the detection process, the geophone array is set along the upstream and downstream directions of the dam. After the elastic wave data is collected at the first detection point, the geophone array is translated along the straight line where the geophone array is located, and the distance moved each time Both are 1m. Collect the elastic wave data corresponding to the detection point after each movement.

[0059] 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 translation, the above steps are repeated to collect the elastic wave data of the detection points on the entire measurement lin...

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Abstract

The invention discloses a spatial-compactness detection method for a rock-fill concrete structure and a spatial-compactness 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 elastic modulus of the detection points, average elastic modulus and spatial variability of elastic modulus, and obtaining the spatial-compactness characteristic of the rock-fill concrete structure. The spatial-compactness detection method can be used for carrying out nondestructive detection of the rock-fill concrete structure to obtain the spatial-compactness characteristic of the corresponding rock-fill concrete structure and reflect the spatial-compactness distribution condition. The evaluation method comprises the following steps of: evaluating the spatial density of the rock-fill concrete structure by utilizing the spatial-compactness characteristic of the rock-fill concrete structure obtained by the spatial-compactness detection method for the rock-fill concrete structure. The evaluation method utilizes the spatial variability of elastic modulus obtained by the detection method to draw a spatial curve for evaluation, and is conductive to controlling the spatial compactness of a dam, improving the construction quality and bringing convenience for 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 spatial density of rock-fill concrete structures and a method for evaluating the spatial density of rock-fill concrete structures. 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 F...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/44
Inventor 商峰周虎冯少孔刘毅金峰安雪晖彭冬聂鼎黄涛陈峰柳春娜李风亮吴琼孙伟王恒杨璐菲吕航
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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