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 >>  . C 08.00.00

628.334.6 .. , .. , ˲ Ҳ ...

628.334.6

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The paper presents a new mathematical model of hydraulic calculation of line-end type exfiltration trenches and performed numerical experiments to determine the maximum filling height of trenches, depending on the estimated duration and intensity of rainfall, and the relative area and configuration of trench in the plan. Critical duration of rainfall, corresponding the maximum filling height of the trench, is determined.

Key words: exfiltration trench, filling height, critical duration of rainfall.

. . [14]. .

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Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua , , ; [3] t = 72 .

, . , , , , , , : .

[4], , :

W en F =, (2) p + p k t ; p ; t ; [4] t=2 .

: SWMM, Miduss [5, 6].

.

. .

Qen = const. , . B , . , . ³ (. 1).

   

. , : ( q20 n), , (t q ), mid, Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua k, , xF, L/B, .

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, . 1.

   

2 5,2 2 1,5 5,1 1,5 1,5 0,5 4,9 0,5 0,5

-1 -2 -3 0 4,8 0 0

   

L B =101 t=20 (q=100 /()) (. 2, ) t=240 (q=17,1 /()) (. 2, ). , , . , , t=20 , h,20 =2,22 , t=240 , h ,240 =1,63 . , , t=20 , h,20 =0,56 , t=240 188 : h,240 = H =2,0 . , , . , , , 24 , [1, 2, 4]. . 2, 2, . t=240 , , (t) , .

. . 3 h,max : F=10 2 (xF=1%) F=15 2 (xF=1,5 %) k=5105 /c=180 /, . L/B: 1 20.

Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua , (. 3, . 3, ), , .

, ᒺ xF=1,5% 1,18,9 % , xF =1 %.




140 .


   

2 1,2 1,8 1,6 0,8 1,4 1,2 2 3 0,6

   

k=180 / xF=11,5%, , , t,=2040 . . 4 L/B, k=180 / xF: 1 % 1,5 %. , xF L/B t,, , .

   

Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua k=15 / , h2,4 . . 5 h,max xF=1,7% (F=17 2) xF=2,0 % (F=20 2).

   

1,6 1,4 1,6

-1 -1 1,2

-2 1,2 -2

   

. 5. L/: 1 1; 2 10; 3 20 (q20=100 /(c);

F=1000 2; mid=0,95; k=4,17106 /c=15 /; p=0,3;

p=0,4; H=2 ) xF =1,7% (); xF =2,0% () ᒺ , k=180 /, : , ᒺ , xF=2 % 0,41,2 % , xF=1,7%.

, k=15 / xF=1,72% , , t,=400700 . , , ᒺ , :

Wen = mid q20 20 n (t )1 n. (23) . , . (13) (14), .

, ( q20 n), , (t, q ), mid, k, , xF, L/B, , , .

Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua (13) (14) . (17)(18) , , Microsoft Excel.

, , , , 24 , [1, 2, 4].

k=180 / xF=11,5% , , t,=2040 .

k=15 / , h2,4 1,7 % .

1. Mays L. W. Stormwater collection systems design handbook [] / L. W. Mays. New York:

McGraw-Hill Professional, 2001. 1008 p. 2. Sommer H. Long term experiences with decentralized infiltration-systems in Germany / H. Sommer, H. Sieker, U. Zweyenert // 11th International Conference on Urban Drainage. Edinburgh, Scotland, UK, 2008. . 18. 3. Storm Water Management Planning and Design Manual. / Ministry of the Environment. Ontario: Queens Printer for Ontario, 2003. 4. U.S.

Environmental Protection Agensy.1999. Storm Water Managem U.S. Environmental Protection Agency.

1999. Storm Water Management Fact Sheet. US EPA report numbers EPA -823-F-99-001 through EPAF-99-050. 5. Rossman L. A. Storm Water Management Model. Users Manual. Version 5.0.

EPA/600/R 05/040. [] / L. A. Rossman. Water Supply and Water Resources Division, National Risk Management Research Laboratory. Cincinnati. 2007. 265 p. 6. Smith A.A. Miduss. Version 2.

Appendices / A.A. Smith. Dundas, Ontario, 2004. 89 p.

Lviv Polytechnic National University Institutional Repository http://ena.lp.edu.ua



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