SANTO TOMÁS UNIVERSITY, TUNJA (COLOMBIA)
FIRST DAILY REPORT (07/ 27 /2015)
TEAM 3
JOSE OREGUI
GABRIELLY OLIVEIRA
MARÍA ALEJANDRA PUERTO
JOSE LUCIANO ACOSTA
TUNJA, 2015
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

1. INTRODUCTION
The work focuses on the analysis of the Riereta catchment, considering rainfall data and structuring of the sewer system to solve the problem identified to the
Team, using EPA SWMM 5.1 program.
La cuenca la Riereta se localiza en el área urbana de SantBoi de Llobregat city, en área metropolitana de Barcelona, en una zona bastante impermeable con pendientes entre el 7% y 1%, que presenta diversos problemas en el sistema de alcantarillado. The Riereta cathcment is located in the urban area of SantBoi de Llobregat city in the metropolitan area of
Barcelona in a very tight area with slopes between 7% and 1%, which presents various problems in the sewer system .
2. GROUP PRESENTATION
NAME
JoseOregui
Gabrielly
Oliveira
Maria
Alejandra
Puerto
Jose Luciano
Acosta
COUNTRY
Argentina
Brazil
Colombia
Uruguay
PROFESSIONAL
INFORMATION
Water Resources
Engineering
Student
Sanitation
Engineer
Civil Engineering
Student
Water Resources
Student
UNIVERSITY
Universidad
Nacional Del
Litoral
UniversidadeF ederal Rio de
Janeiro
Universidad
Santo Tomás
Universidad de
La Republica
AGE
32
MAIL oregjos5@aqua cloud.net
29
20
23 olivgab5@aqua cloud.net puermar5@aqu acloud.net acosjos5@aqua cloud.net
Figure 1. TEAM 3
Authors
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

3. ACTIVITIES
The presentation of each member of the group was held and the initial tasks were distributed: the discretization of the topography and topology of the catchment the
Riereta, well as data collection and design rainfall for a return period of 10 years; each activity carried out by two members of the group.
3.1DISCRETIZATION OF SUB-CATCHMENT
La Riereta catchment has about 18 ha, and for discretization in sub-catchments took into consideration the recommendation that each of these has 1 ha of the area. Used the AutoCad software for the delimitation of areas, which is made based on the analysis of the streets, blocks and sewer system, as well as the slopes of the study area. Figure 1 shows this discretization.
Figure 2. DiscretizationAutoCad
Authors
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

Discretization held resulted in the Rieretacatchment with an area of 17.9 hectares and divided into 18sub-catchments with area between 0.8 hectare and 1.2 hectares as shown in Table 1 and Figure 3.
Table 1.Sub-catchments
Sub-catchments AREA (m^2) AREA (Hectare)
S 1 8048 0,8
S2 10801 1,1
S3
S4
S5
S6
S7
6814
10514
7724
12481
9341
0,7
1,1
0,8
1,2
0,9
S12
S13
S14
S15
S8
S9
S10
S11
S16
S17
S18
TOTAL
10528
10783
10483
10403
9484
11171
9930
10151
10620
8737
10552
178564
1,1
1,1
1,0
1,0
0,9
1,1
1,0
1,0
1,1
0,9
1,1
17,9
Authors
Figure 3. Sub-catchments
Authors
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

3.2 DESIGN RAIN
To determine the rain of the project, the return period of ten years defined for the group, and one hour was taken into account, determining the intensity of rain for the project.
For the calculation of intensity, IDF curves were used Barcelona - Fabra, for different durations, of which the following conditions for the calculation are obtained:
Where I is rainfall intensity (mm / h), T return period (years), D duration (min) and a, b, c are parameters to calculate it all depend on the duration.
After calculating intensities, precipitation by design Alternating Block Method calculated with time intervals of 5 minutes. Block interval higher intensity to 20 minutes, the second in the 15 minute interval, the third at 25 minutes, 10 minutes fourth, fifth at 30 minutes and started missing, this shows in the table 1 and after constructed the hietograma shows in the figure 1.
TABLE 2. DATA
DURATION (min)
40
45
50
55
20
25
30
35
5
10
15
60 a
-64,12
-52,60
-43,15
-35,40
-29,04
-23,83
-19,55
-16,03
-13,15
-10,79
-8,85
-7,26 b
210,11
163,62
132,89
111,21
95,18
82,88
73,19
65,37
58,93
53,56
49,01
45,12 c INTENSITY (mm/h)
0,31
0,33
0,34
0,39
0,41
0,42
0,43
0,35
0,36
0,37
0,38
0,44
212,45
164,94
135,31
115,46
101,38
90,90
82,78
76,28
70,92
66,39
62,48
59,07
CUMULATIVE
PRECIPITATION (mm)
17,70
27,49
33,83
38,49
42,24
45,45
48,29
50,85
53,19
55,32
57,28
59,07
INCREASE
PRECIPITATION(mm)
17,70
9,79
6,34
2,56
2,33
2,14
1,96
4,66
3,75
3,21
2,84
1,79
10
11
8
9
6
7
4
5
1
2
3
12
BLOCKS
INTENSITY BLOCKS
BLOCKS ORDERED
(mm)
INTENSITY
(mm)
212,45
164,94
135,31
70,92
115,46
164,94
115,46
101,38
90,90
82,78
76,28
70,92
66,39
62,48
59,07
212,45
135,31
101,38
90,90
82,78
76,28
66,39
62,48
59,07
Authors
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

Figure 1. Hietograma
Authors
Fordevelopment the project three stations for calibration and validation of the model are assigned, these are: Santa Cecilia, Fidel and Elias; regarding behaviors like as current flow and intensity shown in Figure 2, 3 and 4 respectively.
Figure 2. Santa Cecilia Station
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.

Figure 3. Fidel Station
Figure 4. EliasStation
It was defined the specific project for the group consisting in propose a sewer network rehabilitation using storage/detention tanks.
HydroLatinAmerica – Team 3: Acosta, Oliveira, Oregui, Puerto.