3.9. The calculations of sewer risers
Length of risers |
Calculation expenses, l/sec |
Diameter of surface drainage pipes, mm |
Angle of connection to riser |
Diameter of riser |
Carrying capacity |
||
|
|
|
|||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Cm 1-1 |
0.96 |
1.6 |
2.56 |
100 |
90 |
100 |
3.2 |
Cm 1-2 |
0.53 |
0.6 |
1.13 |
50 |
60 |
50 |
1.2 |
Cm 1-3 |
0.84 |
1.6 |
2.44 |
100 |
90 |
100 |
3.2 |
Calculation expenses of water for risers:
cmK1-1 
instruments,
cmK1-2 
instruments;
cmK1-3 
instruments;
Calculation of risers is analogical:
cmK1-4, cmK1-5, cmK1-6-to riser cmK1-3;
cmK1-3,-to riser cmK1-2; cmK1-6-to riser cmK1-7
Fig. 3.71 Scheme of sewerage outlet k1-1
Table 3.10
Hydraulic calculation of sewer outputs network and yard network
# of site |
Length, m |
Height of
drainage,
|
Diameter, mm |
h/d |
Slope, i |
Speed, V, m/s |
Check,
|
Mark |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
1-2 |
3,6 |
2,56 |
100 |
0,36 |
0,035 |
1,00 |
0,60 |
|
2-3 |
3,2 |
2,86 |
100 |
0,40 |
0,03 |
0,96 |
0,60 |
|
3-4 |
0,7 |
2,95 |
100 |
0,41 |
0,03 |
0,97 |
0,62 |
|
4-5 |
0,2 |
3,3 |
100 |
0,43 |
0,03 |
1,00 |
0,67 |
|
5-KK1 |
5,2 |
3,3 |
100 |
0,43 |
0,02 |
0,86 |
0,60 |
|
KK1-KK2 |
15,0 |
3,3 |
150 |
0,29 |
0,015 |
0,76 |
- |
|
KK2-KK3 |
11,0 |
4,15 |
150 |
0,33 |
0,015 |
0,81 |
- |
|
KK3-KK4 |
16,0 |
4,15 |
150 |
0,33 |
0,015 |
0,81 |
- |
|
Calculation of the sewer output K1-1 follows from the most remote riser cm K1-5 to the sewer well of yard network. The results of calculation of output K1-1 and yard sewerage network shown in table 3.10. High-rise tying up of sewer network performed on the axonometric scheme (fig. 3.71) and on profile of yard sewerage (fig. 3.72).