w y wz 10«3y 253~258 (2010.12.) Journal of Korean Society of Urban Environment ³ w Á» Á Á y w y œw (2010 11 22, 2010 12 9 k) Study on Determine of Detention Pond in Small Developed Area In-Soo Chang ½ Ki-Bum Park ½ Myeng-Jin Lee ½ Jun-Ho Lee Department of Environment Engneering, Chungju University (Received 22 November 2010 : Accepted 9 December 2010) Abstract In this research, we construct the flood runoff model of small watershed and determine the probability of rainfall and the detention basin volume by analyzing precipitation. PondPack model was easily and conveniently in use. Additionally, it can be practically applied in business for estimating the volume of flood runoff and detention basin. A single detention pond is inflow 5.91 cms and outflow 3.02 cms but double detention pond is inflow 5.55 cms and outflow 3.63 cms so, double detention pond better than a single pond inflow control but outflow control is more need regulate skill. Key Words : Detention Pond, Developed Area, PondPack PondPack w ³ y x wš mw y w e z w PondPack v ƒ mw. 5.91 cms, 3.02 cms ù, 5.55 cms š, 3.63 cms ùkû. ƒ 2 ƒ z ƒ q, q. : y,, PondPack I. w»»z y» w jš w, w w ƒ š. y x w w eš 1). y w w ew w y w w Corresponding author E-mail : pkb5032@naver.com ù w w ƒ. y w y g y y j w w. y ù y w ü w ew y z y w v ƒ. y w w e (I, II) 1) š s 253
254 Á» Á Á y w ƒ y y ƒ q w. w Fig. 1 5). 2. e e Fig. 1. ³. w 2) ƒ. w k (BMP : Best Management Practice) w e w y w w 3). w e y w f ƒ z ƒ f 4). w w w e y w yw» w y ew vw yw» wš w Pond Pack w ³ y x wš, mw y w mw y z mwš ƒ mwš w. 1. e z II. y w ew» w ƒ ƒ x,, w w š w» œ» { ƒ wƒ ƒ w œ w w w. e e š w w ƒ w ƒƒ ew w, m z e eƒ w š wš w z mw v ƒ. ü ƒà ewš ƒ ƒ w zw. w j x w w» w j v w z w 5). III. PondPack w 1. PondPack w (synthetic rainfall), š (runoff hydrograph), (culvert), (channel), pond (pond sizing), (outlet structure) pond w w. PondPack ³ ³ ¾ stormwater x 6). d 1970 l d w x ¾ ƒ ù, 1970~1972 d ƒ w w 30» w 1973 l 2006 ¾ 34 w y w. Table 1 y ùkü. 2. PondPack w 2.1. e 0.2 km 2 w w w ew Fig. 2 w ew PondPack w w.
Table 1.» y x» y (mm/hr)» ( ) 10 60 120 180 360 720 1440 10 130.20 54.00 38.10 30.60 21.32 14.06 9.23 20 148.20 62.90 43.85 34.70 24.32 16.10 10.98 30 159.00 68.20 47.25 37.03 26.02 17.28 12.06 50 172.20 75.30 51.55 39.90 28.15 18.76 13.49 80 185.40 82.10 55.65 42.50 30.08 20.12 14.88 ³ w 255 100 191.40 85.40 57.60 43.73 31.00 20.77 15.56 200 211.20 96.20 63.90 47.47 33.82 22.78 17.81 Fig. 4. - š. Fig. 2. e y. Fig. 3. ü š. ü w w m y w y k w, y w - š š - y Fig. 3, Fig. 4, Fig. 5. - PondPack 5.91 m 3 /s, 3.02 m 3 /s, 48.90%. - Table 2 130, š ƒƒ 162.81(EL.m), ƒƒ 8247 m 3. PondPack w w, Fig. 5. - š. Table 2. (PondPack) (km 2 ) 0.20 š(el. m) 161.0 š(el. m) 164.0 (m 2 ) 5689 (m 3 ) 17477 š(el. m) 162.0 (m 3 /s) 5.91 (m 3 /s) 3.02 (m 3 ) 8247 š (EL. m) 162.81 48.90% ew y 48.90% ùkû, w 3.02 m 3 /s ùkû. 2.2. e ew w PondPack w w, Fig. 6 w mw
256 Á» Á Á y Fig. 6. e y. Fig. 9. 1 - š. Fig. 6. e y. Fig. 10. 2 - š. Fig. 7. 1 ü š. Fig. 8. 2 ü š. ƒƒ ew. ü š Fig. 7, Fig. 8 Fig. 11. 1 - š., - š Fig. 9, Fig. 10 ùkü. 1 -, PondPack 4.02 m 3 /s, 2.25 m 3 /s, ƒƒ 44%. 2 - PondPack 1.53 m 3 /s, 1.38 m 3 /s, ƒƒ 9.8%. Fig. 11 Fig. 12 y ùkü. 1 - PondPack 100 š 172.12 (EL.m) ùk ûš ƒƒ 4314 m 3.
³ w 257 Fig. 12. 2 - š. Table 3. 1 2 (km 2 ) 0.14 0.06 š(el. m) 171.0 161.0 š(el. m) 173.0 163.0 (m 2 ) 4125 1535 (m 3 ) 12375 5373 š(el. m) 172.0 162.0 (m 3 /s) 4.02 1.53 (m 3 /s) 2.25 1.38 (m 3 ) 4314 997 š (EL. m) 172.12 162.0 44% 9.8% 2 - PondPack 80 ùkû š ƒƒ 162.0 (EL.m) ùkûš ƒƒ 997 m 3. PondPack w w 2 ù ew y 1 44%, 2 9.8% ùkû, w ƒƒ 2.25 m 3 /s, 1.38 m 3 /s ùkû Table 3 w ùkü. IV. š ³ y w y 1 ew 2 ù ew w w w, PondPack w. y y z jù w š q w œ l g w» Table 4. 1 2 (km 2 ) 0.20 0.14 0.06 š(el.m) 161.0 171.0 161.0 š(el.m) 164.0 173.0 163.0 (m 2 ) 5689 4125 1535 (m 3 ) 17477 12375 5373 š(el.m) 162.0 172.0 162.0 (m 3 /s) 5.91 4.02 1.53 (m 3 /s) 3.02 2.25 1.38 (m 3 ) 8247 4314 997 š (EL.m) 162.81 172.12 162.0 (%) 48.90% 44% 9.8% ƒ w y» w. 2 y ù w y z wù w w j ùkû. w Table 4 ùkü. V. m yƒ w ƒ y j y ew z w.» HEC-HMS w w ù PondPack w, y y e w.» y w v ù, v wù PondPack ƒ mw wš y w. w ew, y 48.9%, z jù w š l g w» ƒ w y» w q. w, 5.91 m 3 /s, š 3.02 m 3 /s, ƒƒ 8247 m 3.
258 Á» Á Á y w, 1 4.02 m 3 /s š, 2.25 m 3 /s ƒƒ 4314 m 3. 2 1.53 m 3 /s, š, 1.38 m 3 /s, ƒƒ 997 m 3. eƒ z ƒ q,» z ƒ w q. e w 48.90%,%, e 1 44%, š, 2 9.8%. w y e ƒ z ƒ q, v PondPack mw ƒ w k v mw ƒ». w w x ( w» ) ww. References 1., e (I), 1998. 2., e (II), 1998. 3., y,,, w», w wz w tz, 2008. 4., y» (I), 2004. 5., y e y vw z w, w w w, 2008. 6. Haestad, PondPack User's Manual, Urban Hydrology and Detention Pond Modeling Software, Bently System, 2001.