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A platform for research: civil engineering, architecture and urbanism
Rapid solution method for preventing earth and rockfill dam from exceeding overtopping flood damage
The invention discloses a rapid solution method for preventing an earth and rockfill dam from being damaged by excessive overtopping flood, which comprises the following steps of: before the excessive overtopping flood comes, cleaning a dam crest and a downstream dam slope, and then arranging two rows of limiting columns from a wave wall of the dam crest to a dam foot along the downstream dam slope; a wave wall at the dam crest between the two rows of limiting columns is chiseled away, an air bag with a U-shaped section and capable of being inflated rapidly is laid from a notch of the wave wall to a downstream dam foot along a downstream dam slope and fixed between the two rows of limiting columns, meanwhile, the air bag capable of being inflated rapidly extends downwards by a certain distance along an upstream dam slope, and the air bag capable of being inflated rapidly is prevented from being pushed away by water; the air bag is inflated, an anti-abrasion coating is constructed on the inner surface of the air bag, and the whole construction is completed. The overtopping water flow exceeding the standard is conveyed out of the dam foot scouring range through the air bag which is high in strength and capable of being rapidly inflated, dam break caused by overtopping damage is effectively avoided, and the method is particularly suitable for dams with multiple cascade reservoirs.
本发明公开了一种防止土石坝超标漫顶洪水破坏的快速解决方法，包括以下步骤：在超标漫顶洪水来临之前，先对坝顶、下游坝坡进行清理，然后沿着下游坝坡从坝顶的防浪墙到坝脚设置两排限位柱；凿除两排限位柱之间的坝顶处防浪墙，将断面为“U”形的可快速充气的气囊从防浪墙缺口处沿着下游坝坡铺设至下游坝脚并固定在两排限位柱之间，同时将可快速充气的气囊沿着上游坝坡向下延伸一段距离，防止快速充气的气囊被水推走；给气囊充气，在气囊内表面施工抗冲磨涂层，整个施工完成。利用高强度、可快速充气的气囊将超标漫顶水流送至坝脚淘刷范围以外，有效避免因漫顶破坏造成的溃坝，尤其适用于有多个梯级水库的坝。
Rapid solution method for preventing earth and rockfill dam from exceeding overtopping flood damage
The invention discloses a rapid solution method for preventing an earth and rockfill dam from being damaged by excessive overtopping flood, which comprises the following steps of: before the excessive overtopping flood comes, cleaning a dam crest and a downstream dam slope, and then arranging two rows of limiting columns from a wave wall of the dam crest to a dam foot along the downstream dam slope; a wave wall at the dam crest between the two rows of limiting columns is chiseled away, an air bag with a U-shaped section and capable of being inflated rapidly is laid from a notch of the wave wall to a downstream dam foot along a downstream dam slope and fixed between the two rows of limiting columns, meanwhile, the air bag capable of being inflated rapidly extends downwards by a certain distance along an upstream dam slope, and the air bag capable of being inflated rapidly is prevented from being pushed away by water; the air bag is inflated, an anti-abrasion coating is constructed on the inner surface of the air bag, and the whole construction is completed. The overtopping water flow exceeding the standard is conveyed out of the dam foot scouring range through the air bag which is high in strength and capable of being rapidly inflated, dam break caused by overtopping damage is effectively avoided, and the method is particularly suitable for dams with multiple cascade reservoirs.
本发明公开了一种防止土石坝超标漫顶洪水破坏的快速解决方法，包括以下步骤：在超标漫顶洪水来临之前，先对坝顶、下游坝坡进行清理，然后沿着下游坝坡从坝顶的防浪墙到坝脚设置两排限位柱；凿除两排限位柱之间的坝顶处防浪墙，将断面为“U”形的可快速充气的气囊从防浪墙缺口处沿着下游坝坡铺设至下游坝脚并固定在两排限位柱之间，同时将可快速充气的气囊沿着上游坝坡向下延伸一段距离，防止快速充气的气囊被水推走；给气囊充气，在气囊内表面施工抗冲磨涂层，整个施工完成。利用高强度、可快速充气的气囊将超标漫顶水流送至坝脚淘刷范围以外，有效避免因漫顶破坏造成的溃坝，尤其适用于有多个梯级水库的坝。
Rapid solution method for preventing earth and rockfill dam from exceeding overtopping flood damage
一种防止土石坝超标漫顶洪水破坏的快速解决方法
WANG HAO (author) / WANG LICHENG (author) / ZHANG YAN (author) / LU YANQIANG (author) / LIU YANHONG (author) / DING YI (author) / FENG YANHUI (author) / WANG ZHICHENG (author) / WANG PENG (author) / SHEN YANKE (author)
2022-04-08
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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