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Device for quickly testing space features of surface cracks of core wall dam and use method thereof

A technology of spatial characteristics and testing devices, which is applied in the direction of measuring devices, instruments, and material analysis through electromagnetic means, can solve the problems of inability to interpret the law of cracks, vertical depth judgment mixed with human errors, etc., to avoid test blind spots and short test time , the effect of rich data information

Pending Publication Date: 2016-12-14
浙江广川工程咨询有限公司
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Problems solved by technology

[0005] Fractures are complex "geological bodies" with a certain spatial shape. The study of the spatial characteristics of fractures must be based on global observations. However, the current non-destructive testing technology only focuses on obtaining two-dimensional images of fractures and cannot interpret the complete fracture law. Vertical depth judgment is also mixed with human error

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  • Device for quickly testing space features of surface cracks of core wall dam and use method thereof
  • Device for quickly testing space features of surface cracks of core wall dam and use method thereof

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specific Embodiment approach

[0059] In order to make the innovative practicability of the present invention well expressed, the detailed description of the specific implementation is as follows in conjunction with the accompanying drawings:

[0060] A test device for cracks in an earth-rock dam includes a base 1 of the device, the base 1 has a dimension width of 5 cm and a thickness of 0.5 cm; a plexiglass plate 1 is arranged with 32 small holes along the central axis of the length, and the small holes have an aperture of 0.25 cm. cm, insert a copper rod 2 into each small hole, the outer diameter of the copper rod 2 is 0.2cm, and the length is 4.5cm, and the middle position of the copper rod 2 and the base 1 are bonded with conductive gel; the lower end of the copper rod is The round cake head 3 is in contact with the ground, and the round cake-shaped end 3 can be coated with conductive glue, which increases the coupling effect between the copper rod and the dam body; 5 is connected with parallel electric...

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Abstract

The invention relates to the field of core wall dam safety detection and further relates to a device for quickly testing space features of surface cracks of a core wall dam through a resistivity method and a use method thereof. The device for quickly testing space features of surface cracks of the core wall dam comprises a parallel electric collector and one or more test devices, wherein each test device comprises a base with at least 20 small holes and copper bars; the copper bars are inserted into the small holes of the base; the bottom ends of the copper bars are of disc shape; the top ends of the copper bars are connected with the electric collector through copper wires. The method provided by the invention is a measure for indirectly testing the surface cracks of the core wall dam and has the advantage of quick, stereoscopic and lossless dynamic monitoring; the form of the surface cracks and the underground extension degree are conveniently and accurately described; the malignant development of comprehensive scanning type observation, forecast or prevention for the cracks of the core wall dam at present can be successively avoided and data can be supplied for the safety evaluation and targeted treatment of the cracks.

Description

technical field [0001] The invention relates to the field of safety detection of earth-rock dams, specifically belongs to a shallow surface soil layer crack detection technology, and furthermore is a device for quickly testing the spatial characteristics of cracks in the surface layer of earth-rock core wall dams by the resistivity method and its use method. The invention is mainly applicable to The hidden danger detection of surface cracks in engineering facilities such as reservoirs, ponds, dikes, canals, tailings dams, roadbeds, etc. can also be applied to the dynamic control of the expansion and contraction process of dam splitting grouting surface cracks, continuous displacement testing of landslide creep and coal mine collapse The testing work of the surface subsidence mechanism of the area, etc. Background technique [0002] Earth-rock dams are the most widely used and the largest number of water retaining engineering forms among dam types in my country, especially in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04
CPCG01N27/041
Inventor 谭磊江晓益许小杰李红文陈星杜运兵
Owner 浙江广川工程咨询有限公司
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