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Dike seepage damage downstream plugging structure and plugging method thereof
The invention discloses a downstream blocking structure and method for dike seepage failure, and relates to the technical field of dike blocking, the downstream blocking structure comprises a dike located on the bank side of an original river channel, a seepage channel and a harmful crack formed by flood seepage failure are arranged in the dike, and a cofferdam is arranged at the downstream position of the seepage channel and the harmful crack; the dam is used for blocking and reinforcing the permeation channel in the mode of upstream blocking and backfilling and downstream dam body ridging. The downstream water level is raised by adopting the downstream cofferdam, so that the seepage gradient of the seepage channel of the embankment body is reduced, the seepage gradient is gradually reduced and the seepage failure effect is gradually weakened along with the lifting of the downstream cofferdam, the short-term safety of the embankment body is remarkably improved, and the situation that the embankment body is deficient due to seepage failure expansion in a short time is avoided; and meanwhile, more favorable conditions are created for upstream throwing, filling and plugging.
本发明公开了一种堤防渗透破坏下游封堵结构及其封堵方法，涉及堤坝封堵技术领域，包括位于原始河道岸边的堤坝，堤坝内有洪水渗透破坏形成的渗透通道与危害性裂缝，渗透通道与危害性裂缝的下游部位设置有围堰，堤坝通过采用上游封堵回填与下游堤身培土的方式用于渗透通道的封堵和加固。本发明通过采用下游围堰的方式雍高下游的水位，从而降低堤身渗透通道的渗透坡降，随着下游围堰的抬升，渗透坡降逐渐降低，渗透破坏作用逐渐减弱，显著提高堤身短期的安全性，避免堤身短期内因渗透破坏扩张而匮缺，同时为上游的抛填封堵创造更为有利的条件。
Dike seepage damage downstream plugging structure and plugging method thereof
The invention discloses a downstream blocking structure and method for dike seepage failure, and relates to the technical field of dike blocking, the downstream blocking structure comprises a dike located on the bank side of an original river channel, a seepage channel and a harmful crack formed by flood seepage failure are arranged in the dike, and a cofferdam is arranged at the downstream position of the seepage channel and the harmful crack; the dam is used for blocking and reinforcing the permeation channel in the mode of upstream blocking and backfilling and downstream dam body ridging. The downstream water level is raised by adopting the downstream cofferdam, so that the seepage gradient of the seepage channel of the embankment body is reduced, the seepage gradient is gradually reduced and the seepage failure effect is gradually weakened along with the lifting of the downstream cofferdam, the short-term safety of the embankment body is remarkably improved, and the situation that the embankment body is deficient due to seepage failure expansion in a short time is avoided; and meanwhile, more favorable conditions are created for upstream throwing, filling and plugging.
本发明公开了一种堤防渗透破坏下游封堵结构及其封堵方法，涉及堤坝封堵技术领域，包括位于原始河道岸边的堤坝，堤坝内有洪水渗透破坏形成的渗透通道与危害性裂缝，渗透通道与危害性裂缝的下游部位设置有围堰，堤坝通过采用上游封堵回填与下游堤身培土的方式用于渗透通道的封堵和加固。本发明通过采用下游围堰的方式雍高下游的水位，从而降低堤身渗透通道的渗透坡降，随着下游围堰的抬升，渗透坡降逐渐降低，渗透破坏作用逐渐减弱，显著提高堤身短期的安全性，避免堤身短期内因渗透破坏扩张而匮缺，同时为上游的抛填封堵创造更为有利的条件。
Dike seepage damage downstream plugging structure and plugging method thereof
堤防渗透破坏下游封堵结构及其封堵方法
ZHU ANLONG (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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