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A platform for research: civil engineering, architecture and urbanism
Drainage structure combining water drainage tank culvert and drainage tunnel behind dam and construction method
The invention provides a drainage structure combining a dam back drainage tank culvert and a drainage tunnel, a construction drainage tunnel is arranged behind a dam with a dam back pressure slope body, the construction drainage tunnel is arranged in a bank slope mountain, and a river channel at the downstream of an inlet of the construction drainage tunnel is provided with a closure cofferdam; the dam foot of the dam is provided with a water collecting retaining wall connected with mountains on the two sides, the downstream of the water collecting retaining wall is closely connected with a drainage box culvert, the two ends of the drainage box culvert are communicated with a gallery in the water collecting retaining wall and a construction drainage hole respectively, and drainage steel pipes for guiding seepage water of the dam body to be drained are arranged in the drainage box culvert and the construction drainage hole in a back-loading mode. The construction drainage tunnel is arranged in a permanent and temporary combined mode, so that temporary diversion operation is conducted before the lower reservoir diversion tunnel construction is completed and overflowing is completed, and it is guaranteed that earlier-stage slag accumulation of a pressure slope body behind a dam is not affected in the construction period; and a drainage tunnel is constructed in the operation period and also serves as a drainage channel for water seepage of the rear half dam body of the dam drainage box culvert.
本发明提供了一种坝后排水箱涵和排水洞结合的排水结构，在具备坝后压坡体的大坝坝后设置施工排水洞，所述施工排水洞布置于岸坡山体内，所述施工排水洞的进口下游河道设置截流围堰；所述大坝的坝脚设置与两岸山体相连的集水挡墙，所述集水挡墙下游紧接设置排水箱涵，所述排水箱涵两端分别与集水挡墙内部的廊道和施工排水洞相连通，所述排水箱涵和施工排水洞内后装式设置有引导坝体渗水排放的排水钢管。本发明施工排水洞通过永临结合布置，使其在下库导流洞施工完成过流之前进行临时导流作业，保证施工期坝后压坡体的前期堆渣不受影响；并在运行期施工排水洞兼做大坝排水箱涵后半部分坝体渗水的排水通道。
Drainage structure combining water drainage tank culvert and drainage tunnel behind dam and construction method
The invention provides a drainage structure combining a dam back drainage tank culvert and a drainage tunnel, a construction drainage tunnel is arranged behind a dam with a dam back pressure slope body, the construction drainage tunnel is arranged in a bank slope mountain, and a river channel at the downstream of an inlet of the construction drainage tunnel is provided with a closure cofferdam; the dam foot of the dam is provided with a water collecting retaining wall connected with mountains on the two sides, the downstream of the water collecting retaining wall is closely connected with a drainage box culvert, the two ends of the drainage box culvert are communicated with a gallery in the water collecting retaining wall and a construction drainage hole respectively, and drainage steel pipes for guiding seepage water of the dam body to be drained are arranged in the drainage box culvert and the construction drainage hole in a back-loading mode. The construction drainage tunnel is arranged in a permanent and temporary combined mode, so that temporary diversion operation is conducted before the lower reservoir diversion tunnel construction is completed and overflowing is completed, and it is guaranteed that earlier-stage slag accumulation of a pressure slope body behind a dam is not affected in the construction period; and a drainage tunnel is constructed in the operation period and also serves as a drainage channel for water seepage of the rear half dam body of the dam drainage box culvert.
本发明提供了一种坝后排水箱涵和排水洞结合的排水结构，在具备坝后压坡体的大坝坝后设置施工排水洞，所述施工排水洞布置于岸坡山体内，所述施工排水洞的进口下游河道设置截流围堰；所述大坝的坝脚设置与两岸山体相连的集水挡墙，所述集水挡墙下游紧接设置排水箱涵，所述排水箱涵两端分别与集水挡墙内部的廊道和施工排水洞相连通，所述排水箱涵和施工排水洞内后装式设置有引导坝体渗水排放的排水钢管。本发明施工排水洞通过永临结合布置，使其在下库导流洞施工完成过流之前进行临时导流作业，保证施工期坝后压坡体的前期堆渣不受影响；并在运行期施工排水洞兼做大坝排水箱涵后半部分坝体渗水的排水通道。
Drainage structure combining water drainage tank culvert and drainage tunnel behind dam and construction method
一种坝后排水箱涵和排水洞结合的排水结构及施工方法
XU JIANWEI (author) / WEI HAINING (author) / YU XUESONG (author) / CHEN PENG (author) / ZHENG WEIKANG (author) / HU XIAOYU (author) / WANG JIANGUO (author) / ZHAO CHUNHONG (author) / SHAO BING (author) / XU XIAODONG (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E02D
FOUNDATIONS
,
Gründungen
/
E03F
SEWERS
,
Abwasserkanäle
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