II. Sewer Networks and Facilities

siennatearfulUrban and Civil

Nov 25, 2013 (3 years and 8 months ago)

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1

II. Sewer Networks and Facilities


Topic II.3.
Sewer Pipes: Kinds, Joints, Foundation.

Sewer Network Design

Sewer Pipes Profiles:



Normal

(b/h



1
)


Circular


Trapezoidal


Square



High

(b/h

<

1
)


Egg
-
shaped


Ellipsoidal


Oval


Horseshoe



Low

(b/h

>

1
)


Mouth
-
shaped


Rectangular



Combined

2

Sewer Pipes

Sewer Pipes Profiles:


a

-

circular

б

-

egg
-
shaped

(inverted)

b

-

egg
-
shaped

г

-

mouth
-
shaped

д

-

square

e

-

trapezoidal

3

Sewer Pipes

Sewer Pipes Materials:



Concrete,

Reinforced

concrete,

Prestressed

concrete



Ceramics



Asbestos

cement



Cast

iron



Steel



Plastics

-

PVC,

PE,

PP,

reinforced

with

fibre
-
glass



Resins

-

epoxy

resin,

reinforced

with

fibre
-
glass

4

Sewer Pipes

5

Sewer Pipes

6

Sewer Pipes

7

Sewer Pipes


Plastic Pipes

8

Sewer Pipes Joints

Reinforced Concrete Pipes

1
-

putty; 2
-

cement putty; 3
-

muff; 4
-

resin rope

9

Sewer Pipes Joints

a
-

Ceramic pipes; б
-

Cast iron; b, г
-

Reinforced concrete

1
-

plastic gasket; 2, 3, 4
-

rubber gasket

10

Sewer Pipes Foundation

a
-

on grounds with strength
p

> 1,5
kg/cm
2

and pipes with
D

= 0,6
-

3,5

m

б
-

on grounds with strength
p

< 1,5
kg/cm
2
and pipes with
D

= 0,8
-

2,5

m

b
-

on embankments

11

Sewer Pipes Foundation

a
-

on saturated (wet) stable grounds; б
-

on unstable grounds

1
-

base drainage layer; 2
-

concrete pillow; 3
-

drainage pipes;


4
-

reinforced concrete plate; 5
-

piles

12

Sewer Pipes Foundation

Reinforced Concrete Pipes with Heel

1
-

cement coat; 2
-

cement layer; 3
-

concrete foundation

13

Sewer Networks Design

Determination of the Minimal Sewer Pipeline Depth

1
-

street regulation line; 2
-

the most remote yard manhole


H = h + i(l + L)
-

(z
1

-

z
2
) + D
-

d

14

Sewer Networks Design

Principles of the Sewer Pipes Joining

a
-

water levels alignment; б
-

pipes inverts alignment; b
-

pipes bottoms
alignment (at CSO only); г, д
-

sewer pipe branches joining the mains

15

Sewer Networks Design

16

Sewer Networks Design

Underground Infrastructure Allocation

1
-

electricity cables; 2
-

telephone cables; 3
-

gas pipes; 4
-

water supply pipes; 5
-

sanitary
sewer pipes; 6
-

street inlets; 7
-

drainage pipe

17

Sewer Networks Design

Installation Gallery


1

-

drainage

pipe

2

-

central

heating

mains

3

-

telephone

cables

4

-

consoles

5

-

prefabricated

reinforced

concrete

panels

6

-

concrete

foundation

18

Sewer Networks Design