Earth and rockfill dam inner deforming non-contact monitoring method

A deformation monitoring, non-contact technology, applied in the direction of measuring devices, instruments, etc., to achieve the effect of small construction interference, strong anti-rolling ability, and not easy to be damaged

Active Publication Date: 2014-01-15
POWER CHINA KUNMING ENG CORP LTD
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Problems solved by technology

[0005] The invention is a non-contact monitoring method for internal deformation monitoring of earth-rock dam

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  • Earth and rockfill dam inner deforming non-contact monitoring method

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Embodiment Construction

[0011] The non-contact monitoring method for monitoring the internal deformation of the earth-rockfill dam of the present invention is to bury the target measuring point 7 with a large difference in the material of the rockfill body inside the earth-rockfill dam body, and outside the rockfill body (such as the downstream dam surface) or the dam Install detection instruments in the inner corridor to detect the distance between the target measuring point and the detection instrument from different positions and angles. According to the known position of the detection instrument, the detection distance between the detection instrument and the target measurement point, and the distance between the detection distance and the horizontal The included angle determines the initial position of the target measuring point, and the position of the target measuring point is actually measured within a specified time interval. The difference between each measured position and the initial positi...

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Abstract

The invention discloses an earth and rockfill dam inner deforming non-contact monitoring method. Target measuring points are buried in an earth and rockfill dam body, the difference between the target measuring points and rockfill materials is large. A detecting instrument is arranged on the outer portion of a rockfill body or a dam inner gallery, the distance between the target measuring points and the detecting instrument is detected from different positions and different angles, according to the known position of the detecting instrument, the detecting distance between the detecting instrument and the target measuring points and the included angle between the detecting distance and a horizontal line, the initial positions of the target measuring points are determined, the real positions of the target measuring points are measured at specific time intervals, and the difference between the real positions measured each time and the initial positions is the variation value of deforming of a part in the dam body. The method solves a plurality of problems existing in a current inner deforming monitoring technology of the earth and rockfill dam, and the safety monitoring design and the monitoring method of earth and rockfill dams in China are changed fundamentally.

Description

[0001] technical field [0002] The invention relates to the technical field of hydropower engineering, in particular to a non-contact monitoring method for internal deformation monitoring of earth-rock dams. Background technique [0003] In recent years, domestic hydropower technology has developed rapidly, represented by Tianshengqiao Class I (dam height 178m), Hongjiadu (dam height 179.5m), Sanbanxi (dam height 185.5m) and Shuibuya (dam height 233m) hydropower stations, etc. A number of typical projects have gradually increased the height of concrete face rockfill dams from 100m to 200m, making the design theory and construction technology of earth-rockfill dams in my country reach the international advanced level. However, the development of safety monitoring technology for face rockfill dams obviously lags behind the development of dam construction technology, and the adaptability, durability, and impact resistance of many monitoring instruments still remain at the leve...

Claims

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Application Information

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IPC IPC(8): G01B21/32
Inventor 张宗亮张礼兵谭志伟赵志勇邹青陈荣高胡灵芝丁学智冯燕明
Owner POWER CHINA KUNMING ENG CORP LTD
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