Method for blocking torrent dam-burst breach by towing, tossing and fastening floating pier anchors at three points on both shores

Abstract

The invention provides a method for blocking a torrent dam-burst breach by towing, tossing and fastening floating pier anchors at three points on both shores. According to the method, towing points, towing cables and the pier anchors are included. The method is characterized in that the towing points are arranged in the corresponding positions of the upstream end and the downstream end of the burst breach as well as the corresponding position of a dam on the opposite shore, the floating pier anchors are controlled by the towing cables to be moved, the floating pier anchors settle to be towed and fastened to the two ends and the center of the burst breach to serve as stable supporting points, and accordingly the whole burst breach is blocked. Compared with the prior art, jetty heads of thedownstream end and the upstream of the burst breach are sealed through the towed and fastened pier anchors, so that the burst breach is prevented from expanding, the whole burst breach is blocked by the towed and fastened linear pier anchors, the required blocking materials are not prone to being rushed away, the blocking efficiency is high, the blocking cost is low, the blocking process is safe and orderly, the influence on the environment outside the burst breach is small, and future troubles are hardly left for future dam reconstruction and renovation.

Description

1. Technical field: [0001] The invention relates to flood fighting and disaster relief, in particular to a method for blocking dam breaks caused by torrents by three-point traction on both sides of the bank and throwing solid floating pier anchors. 2. Background technology: [0002] In the high water season of rivers, sometimes there are dam breaks caused by excessive flood peaks or other reasons, flooding and disasters occur, and it is often necessary to seal the breaches urgently to prevent disasters from happening or spreading. The existing method for blocking the breach of a torrent dam breach is mainly to throw and fill earth and rocks in the breach from the dykes at both ends of the breach until closing up. When the earth and rocks are constantly being washed away and it is difficult to be effective, heavy-duty vehicles and heavy-duty ships are also used for emergency response. However, in many cases, it is not uncommon that even if the above-mentioned measures are tak...

AI Technical Summary

Problems solved by technology

The serious hazards of this process are: 1. The filled earth and stone materials far exceed the volume of the dam failure, the quantity is huge, the equipment and personnel invested are large, the labor intensity is high, the risk factors are many, the cost is high, and the reliability is poor

2. A large amount of earth and stone raw materials are used, and a large amount of erosion and siltation outside the breach will cause serious damage to the environment outside the breach, and it will be difficult to restore the original state in the future

3. The plugging formed during the emergency filling process is large in volume, uneven in firmness, and poor in quality. There will be many legacy repairs and reconstructions of dams in the future, and the workload will be heavy, and the quality of newly built dams will be difficult to guarantee

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