Earth and rockfill dam for forming instantaneous overtopping in process of simulating overtopping dam break test

A technology for earth-rock dams and dam breaks, applied in dams, barrages, water conservancy projects, etc., can solve problems such as control, early dam failure, endangering the lives and property safety of downstream people, and achieve simple and effective control to ensure the safety of life and property Effect

Active Publication Date: 2013-05-22
NANJING HYDRAULIC RES INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, impounding water in the upstream is a long-term work, which is not only not conducive to the control of the progress of the

Method used

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  • Earth and rockfill dam for forming instantaneous overtopping in process of simulating overtopping dam break test
  • Earth and rockfill dam for forming instantaneous overtopping in process of simulating overtopping dam break test

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Embodiment

[0019] according to figure 1 As shown, the present invention includes a dam body 1 . The dam body 1 is mainly formed by stacking earth and rock materials on the dam foundation. In the test of this embodiment, the dam body is 8 m high and has a storage capacity of 100,000 m 3 .

[0020] According to the test requirements, a flushing groove 2 with a depth of 1 m and a width of 0.8 m was excavated on the top of the dam body 1, and the flushing groove 2 connected the upstream and downstream of the dam body 1.

[0021] A gate is provided in the middle of the flush groove 2, and the gate in this embodiment is made of steel plate glass 3 with a thickness of 8mm (of course, other gate mechanisms that can be opened instantly or quickly can also be used). For the glass 3, on the back of the toughened glass 3, the toughened glass 3 is fixed with π-shaped stakes, and the punching tank 2 is divided into two sections, the upper and the lower.

[0022] No objects are placed in the upstrea...

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Abstract

The invention relates to an earth and rockfill dam for simulating an overtopping dam break test. The earth and rockfill dam mainly comprises a dam body built by rock materials on a dam base, wherein leading slots are dug on the top of the dam body along the upstream and downstream directions of the dam body; the leading slots are communicated with the upstream and downstream of the dam body; a gate is arranged in the middle of the leading slots at an interval; and the leading slots are separated into an upstream section and a downstream section through the gate. The gate is arranged in the leading slots on the top of the dam body, and when the upstream water level reaches the position and the test is started, the gate on the leading slots is opened, the upstream water is drained from the leading slots, and the dam body is effectively washed to form dam break. According to the earth and rockfill dam, when water is accumulated at the upstream, dam break caused by the situation that the water overtops the leading slots is avoided, the test start time can be simply and effectively controlled, and the life and property safety of testers and the masses at the downstream is guaranteed.

Description

technical field [0001] The invention relates to an earth-rock dam, in particular to an earth-rock dam used in simulating flood top dam break tests. Background technique [0002] Reservoir dams bring huge economic and social benefits to human beings, but at the same time there is a risk of collapse. Especially affected by global climate change, extreme weather events in my country have increased significantly, and flood disasters are sudden, abnormal, and unpredictable. The nature is becoming more and more prominent, which poses a huge challenge to the safety of reservoirs and dams. In view of the serious consequences of dam failure, people pay more and more attention to the research on the mechanism of dam failure. In the existing research on the mechanism of dam failure, experiment is a very important means. According to the size of the dam break test model, it is mainly divided into two types: indoor and on-site. Although the field test has the characteristics of high test...

Claims

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Application Information

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IPC IPC(8): E02B7/06E02B8/04E02B8/06
Inventor 宣国祥胡亚安严秀俊刘火箭郑飞东程龙
Owner NANJING HYDRAULIC RES INST
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