調節池設計之探討

Design of Retention Pond

黃宏斌(Hung-Pin Huang) ； 張三郎(San-Lang Chang) ； 吳正雄(Jenug-Hsiung Wu)

《中華水土保持學報》 27卷1期 (1996/03) Pp. 39-46

https://doi.org/10.29417/JCSWC.199603_27(1).0004

摘要

由於調節池設計所需之入流歷線型態及其延時很難確定之情況下，目前在山坡地開發時，以集流時間為其滯洪延時已無法達到調節洪流之目的。因此，在以降低出流流量為主要之要求下，以三角歷線為入流歷線之型態，滯流延時則為各頻率年發生100 mm/hr加強度時之降雨事件延時之假設條件，以自由溢流之水庫模擬調節池，在決定排放口之型式大小後，藉水庫演算之波爾斯法加以計算得到出流歷線。以臺北地區10公頃之坡地開發為例，當入流、出流洪峰流量分別為50、25年頻率洪水時，在包含400 m^3之沈砂體積，且其排放口管徑為0.8 m時，其調節池之蓄水體積為2,496 m^3。

關鍵字

調節池 ； 歷線延時 ； 坡地開發 ； 集流時間

並列摘要

Without information about type and duration of inflow hydrograph for design work on retention pond, the objective of adjusting flood flow could not carried out easily with taking concentration time as retarding duration in work of slopeland development presently. Hence, with requirement of decreasing flood flow as well as assumptions of triangular hydrograph, duration of rainfall event which occurred on rainfall intensity of 100 mm/hr for some frequency year, and type or dimension of spillway, free-flow reservoir was used to .simulate retention pond by Puls Method of reservoir routing to get outflow hydrograph, For example, the development of 10 hectare slopeland in Taipei area, the storage volume of retention pond with 0.8 meter's diameter spilway would be 2,496 m^3 including sediment volume of 400 m^3 when 50 and 25 frequency year runoff was taken as. the peak flow of inflow and outflow. respectively.

並列關鍵字

Retention Pond ； Duration of Hydrograph ； Slopeland Development ； Concentration Time