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A platform for research: civil engineering, architecture and urbanism
Vertical shaft spillway tunnel system
The invention relates to a vertical shaft spillway tunnel system. A sudden expansion structure is arranged at the joint of the tail section of a horn mouth on the lower portion of an annular overflow weir and a vertical shaft body section, and a breather pipe is arranged at the sudden expansion position; a pressing plate is arranged at the top of the joint of the vertical shaft and the lower adit in the longitudinal axis direction of the lower adit. Drainage water flow enters the horn-mouth-shaped contraction section through the annular overflow weir and enters the shaft body section of the vertical shaft through the sudden expansion structure to form wall separation flow with stable cavities in the periphery, contact of the shaft wall of the vertical shaft is avoided, and the vertical shaft sudden expansion type and the pressing plate type are simple, small in construction amount, free of too much maintenance and economical and applicable. Water flow enters the adit, the lower adit is provided with a pressing plate to mainly reduce water surface turbulent fluctuation, adjust the water flow direction and stabilize the water surface, meanwhile, the lower water passing area is not affected, and the drained water flow is not accelerated. The threat that the shaft wall of the vertical shaft is scoured by water flow is effectively eliminated, the flow state of the lower adit is effectively adjusted, potential safety hazards are eliminated, and the safety of the shaft body and the adit structure is protected.
本发明涉及一种竖井泄洪洞系统，在环形溢流堰下部喇叭口末段与竖井井身段连接处设置突扩结构，在突扩处设置通气管；在竖井与下平洞连接处顶部，沿下平洞纵轴线方向设有压板。下泄水流通过环形溢流堰进入喇叭口形收缩段，在突扩结构进入竖井井身段，形成四周具有稳定空腔的脱壁流，避免了竖井井壁的接触，竖井突扩体型、压板体型简单，施工量小，无需太多维护，经济适用。水流进入平洞，下平洞设置压板以消减水面紊动，调节水流方向和稳定水面为主要作用，同时不影响下部过水面积，不对下泄水流起到加速作用。本发明的有效消除了竖井井壁被水流冲刷的威胁并有效调整下平洞流态，消除了安全隐患，保护了竖井洞身及平洞结构安全。
Vertical shaft spillway tunnel system
The invention relates to a vertical shaft spillway tunnel system. A sudden expansion structure is arranged at the joint of the tail section of a horn mouth on the lower portion of an annular overflow weir and a vertical shaft body section, and a breather pipe is arranged at the sudden expansion position; a pressing plate is arranged at the top of the joint of the vertical shaft and the lower adit in the longitudinal axis direction of the lower adit. Drainage water flow enters the horn-mouth-shaped contraction section through the annular overflow weir and enters the shaft body section of the vertical shaft through the sudden expansion structure to form wall separation flow with stable cavities in the periphery, contact of the shaft wall of the vertical shaft is avoided, and the vertical shaft sudden expansion type and the pressing plate type are simple, small in construction amount, free of too much maintenance and economical and applicable. Water flow enters the adit, the lower adit is provided with a pressing plate to mainly reduce water surface turbulent fluctuation, adjust the water flow direction and stabilize the water surface, meanwhile, the lower water passing area is not affected, and the drained water flow is not accelerated. The threat that the shaft wall of the vertical shaft is scoured by water flow is effectively eliminated, the flow state of the lower adit is effectively adjusted, potential safety hazards are eliminated, and the safety of the shaft body and the adit structure is protected.
本发明涉及一种竖井泄洪洞系统，在环形溢流堰下部喇叭口末段与竖井井身段连接处设置突扩结构，在突扩处设置通气管；在竖井与下平洞连接处顶部，沿下平洞纵轴线方向设有压板。下泄水流通过环形溢流堰进入喇叭口形收缩段，在突扩结构进入竖井井身段，形成四周具有稳定空腔的脱壁流，避免了竖井井壁的接触，竖井突扩体型、压板体型简单，施工量小，无需太多维护，经济适用。水流进入平洞，下平洞设置压板以消减水面紊动，调节水流方向和稳定水面为主要作用，同时不影响下部过水面积，不对下泄水流起到加速作用。本发明的有效消除了竖井井壁被水流冲刷的威胁并有效调整下平洞流态，消除了安全隐患，保护了竖井洞身及平洞结构安全。
Vertical shaft spillway tunnel system
一种竖井泄洪洞系统
GAO XUAN (author) / ZHANG ZHENWEI (author) / LI ZONGHUA (author) / ZHANG XIAOPENG (author) / REN QINGFENG (author) / CHEN XIANGWEI (author) / LI GUANGNING (author) / SUN SHUANGKE (author) / LU DONGSHENG (author) / LIU HAITAO (author)
2023-11-14
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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