Reverse scale geomembrane cloth anti-seepage curtain fuse plug spillway and flood way

Abstract

The invention discloses a reverse scale geomembrane cloth anti-seepage curtain fuse plug spillway and a flood way, and belongs to the field of national defense of water conservancy projects and dams of emergency spillway coping with flooding. The method mainly comprises the following steps that a reverse scale geomembrane cloth anti-seepage curtain fuse plug spillway (1) and the flood way (2) aredesigned in quantization according to a dam disaster prevention and reduction design theory, and the reverse scale geomembrane cloth anti-seepage curtain fuse plug spillway (1) comprises a full-section reverse scale geomembrane cloth anti-seepage curtain fuse plug spillway and a reverse scale geomembrane cloth anti-seepage curtain sub-dam flushing fuse plug spillway; and a reverse scale geomembrane cloth anti-seepage curtain comprises reverse scale bag geotextile, a reverse scale bag geotextile plastic thin film used for closing and water stopping, a geomembrane cloth reverse scale used for folding and rolling water stopping, a geomembrane cloth reverse scale used for lap jointing water stopping, a geomembrane cloth reverse scale used for lap jointing single-membrane water stopping, a geomembrane cloth reverse scale used for lap jointing double-membrane water stopping. The fuse plug spillway and the flood way are suitable for automatic flooding of dams with any water head, and are simple in structure, convenient to manage, low in manufacturing cost, and safety and reliability are achieved.

Description

technical field [0001] The invention belongs to the technical field of dike and dam extreme flood diversion conservancy engineering, and also belongs to the technical field of national defense against water attack, and specifically relates to a design method of reverse scale geomembrane cloth self-collapsing dike and flood channel. Background technique [0002] In 2017, a large hole 91.4 m wide, 152.4 m long, and 13.7 m deep appeared in the spillway of the Oroville Dam reservoir, the highest dam in the United States, and a dangerous situation occurred when the simple auxiliary spillway was activated, causing 188,000 people to evacuate urgently. Zhang Xiuli et al. A Brief Introduction and Preliminary Analysis of the Oloville Reservoir Spillway Drainage Incident" analyzed the cause of the accident, and quoted "the real reason why the reconstruction project was shelved is that no organization is willing to bear the cost of up to one million dollars", which exposes the difficulti...

AI Technical Summary

Problems solved by technology

At present, there is no design theory for self-collapsing dikes. The artificial blasting flood diversion method is generally used. The advantage can overcome the uncertainty of consolidated clay and hardened road surface. The disadvantage is that the flood season management and explosives management require high requirements. Once the blasting flood diversion is out of control

The failure of dams is very common. There is no feasible and consensus design theory for self-failure dams, and there is no complete set of technologies. The reason is that the current design theory of self-failure dams is to quantify and meet the flood standards stipulated in the code, that is, from the start of dam failure to the reservoir. The time when the water level rises to the standard water level coincides with the time of self-breakage of the dam, and the mechanism of various dam self-breakage phenomena is very complicated. At present, there is no mathematical model to solve it; at present, there is only a large-scale overall test of the self-breakage dam of the diversion channel through test methods. There are similarities. The statically indeterminate structure of the three-sided consolidated clay of the flushing trough complicates the problem. At the same time, the test cannot solve the problem of uncertainty, infinity of flood and uncertainty of self-collapse caused by consolidated clay and hardened road surface. At present, all self-collapsing dams designed through experiments must be rare and rare floods, which are hardly verified by practice; a large number of small and medium-sized dams, canal head works, dikes, canal structures, cofferdams, etc., are limited by economic and technical conditions. , the norms allow super-standard flood water damage, despite massive water damage, the norms allow people to take for granted

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