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Detection method for stability against sliding of concrete gravity danger dam

A detection method and concrete technology, applied in the damage stability evaluation and monitoring and early warning of dams, the detection parameters of the anti-sliding stability of concrete gravity dams, evaluation methods and monitoring and early warning fields, which can solve the problems of losing the meaning of the test and troubles

Active Publication Date: 2015-04-22
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

It must reflect the various conditions and properties of the dam body, otherwise it will have no similarity with the prototype, lose the meaning of the test, and it is more troublesome, it is only used as a supplementary reference in major projects

Method used

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  • Detection method for stability against sliding of concrete gravity danger dam
  • Detection method for stability against sliding of concrete gravity danger dam
  • Detection method for stability against sliding of concrete gravity danger dam

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Embodiment Construction

[0074] The dam studied by the present invention is located at the outlet section of the main stream of the Yellow River. It is a concrete gravity dam built in the 1950s. It has exceeded the design service life so far. The actual operating conditions, structural stress conditions and surrounding environmental geological conditions of the dam have been surveyed. It is clear, and at the same time, the initial construction data of the dam and the overall scope of the dam body have also been made clear, which meets the application conditions of this invention. The dam body was damaged in June 2004. The monitoring period of the dam in this embodiment is from January 2000 to the failure of the dam. In the following, the dam will be described in detail in conjunction with the accompanying drawings and specific implementation methods as an example. The specific implementation plan and process are as follows:

[0075] Step 1: Layout design of datum monitoring points and deformation mo...

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Abstract

The invention discloses a detection method for stability against sliding of a concrete gravity danger dam. The detection method for the stability against sliding of the concrete gravity danger dam comprises the following steps that first, benchmark monitoring points and distortion monitoring points are arranged; second, a detection device is utilized to detect the water level value of a reservoir front of the dam in a reservoir region; third, the real-time monitoring data of dam displacement deformation amount are acquired and processed; fourth, the reservoir water level dynamic unloading and loading parameters and the displacement response parameters of the dam are defined; fifth, the reservoir water level dynamic unloading and loading displacement response ratio parameters of the dam are defined; sixth, the real-time damage stability coefficients of the dam are defined; and seventh, the damage disaster early-warning criterion and the estimation of stability of the dam are defined.

Description

technical field [0001] The invention relates to the technical field of damage stability evaluation and monitoring and early warning of dams, in particular to the fields of detection parameters, evaluation methods and monitoring and early warning of anti-sliding stability of concrete gravity critical dams based on dynamic changes of reservoir water level. Background technique [0002] According to the statistics of the International Commission on Large Dams, there are more than 50,000 dams with a height of more than 15m in the world, and there are more than 20,000 in China, accounting for 44%, and concrete dams account for about half. Most of the dams in my country were built in the 1950s to 1970s. Due to historical reasons, the dams built at the beginning had problems such as low flood control standards, poor construction quality and many safety hazards. At present, according to the design standards, many dams in the world have reached or even exceeded the design life under ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 贺可强马孝云崔宪丽
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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