Disposal method of Barrier Lake for artificially regulating and controlling drain flow and application thereof

A disposal method and artificial technology, applied in artificial waterways, water conservancy projects, sea area projects, etc., can solve the problems of reducing the risk of barrier lakes, the difficulty of discharge flow, and low discharge efficiency, so as to improve emergency discharge efficiency, rapid discharge, The effect of reducing losses
CN101718085AInactive Publication Date: 2010-06-02INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
Publication Date
2010-06-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a disposal method of Barrier Lake for artificially regulating and controlling the drain flow and an application thereof. The method comprises the following steps of: digging a draining guide slot at the part of a relatively low-lying groove on a dam body of a barrier lake; in the draining intermediate stage of a Barrier Lake reservoir, carrying out artificial explosions or mechanical clearing on huge stones influencing downward erosion development in the draining guide slot so as to guarantee the stable growth of the down cutting flow; and in the draining later stage of the Barrier Lake reservoir, when the reservoir water drain flow in the draining guide slot reaches a set threshold value, putting an artificial structural body into the draining guide slot to stabilize a slot bed so as to control the quick down cutting of the slot bed and play a role of flow control. Compared with the prior art, the invention can avoid the phenomena that the draining efficiency in the initial stage is low, and the draining in the later stage is too quick and difficult to control, which are easy to appear when a conventional method is used for disposing the Barrier Lake, thus the invention greatly improves the emergency draining efficiency of the Barrier Lake and quickly reduces the risks of the Barrier Lake so as to greatly reduce the loss of an upstream flooding area and the risks of a downstream risk area.
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Description

technical field

[0001] The invention relates to a disaster reduction technology for barrier lake disposal, in particular to a barrier lake disposal method for artificially regulating discharge flow and its application. Background technique

[0002] Barrier lakes are a natural landform phenomenon, including landslides caused by earthquakes, moraine lakes formed by glaciers blocking channels, etc. When there are human activities downstream, the floods caused by their collapse will seriously threaten people's lives and Property security restricts the development of the national economy in the vast mountainous areas of the country.

[0003] On May 12, 2008, the Wenchuan Earthquake triggered a large number of barrier lakes between the Longmenshan Front Mountain fault zone and the Back Mountain fault zone and adjacent areas, the most notable of which is the Tangjiashan barrier lake in Beichuan County. Disposal results of several large-scale barrier lakes, such as Tangjiashan barr...

Claims

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