1










TP. HỒ CHÍ MINH – THÁNG 06 NĂM 2012
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
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
  




       



 Symbol drawing of water
supply network. 9
I. (Symbol) 9
II. (Symbol details) 9
III. (Valve symbol) 10
IV. (Other details) 10
1.B cha, th(Reservoir, Tanks) 10
(Pump) 11
3.Các chi tit khác (Other details) 12
 Technical digging trenchs 13
I. (Principle) 13
II. (Order of execution) 13
1.Chun b mt bng (Ground preparation) 13
2.Ct mng (Cut the tarmac) 13
3.K thung (Technical digging trenchs) 14
3.1. (Digging manual) 14
3.2. (Mechanical digging) 14
(Digging trenchs) 15
5.Ch (Resist digging trenchs) 16
6.Các cách thi công giàn giáo (Construction scaffolding) 17
Transportation and
storage pipes in site 18
I. (Transportation and gathering
in site) 18
II. (General Precautions) . 20
1.Cu ng (Lifting) 20
2.S dng các móc (Use of hooks) 20
III.  (Storage) 21
1.ng Gang (Cast Iron pipe) 21

1.1.  200mm) (Case 1 (DN 100 –
200mm)) 36
1.2.  50mm) (Case 2 (DN 21 – 50mm))
38
IV. (Installation uPVC pipes) 40
1.Chun b(Preparation tool) 40
2.Lt (Installation) 41
 Re – established 44
I. (Filled the trench) 44
II. (Backfilling and tarred) 45
Bolt tightening method 51
I. (Standard Application) 51
1.Trình t công tác lp bu-c thc hi 51
Polyethylene sleeving 54
I. (Conditions of use) 54
II. (Technical characteristics) 54
(Installation process) 54
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
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Repair prestressed
concrete cylinder pipe. 59
I. (Emergency Replacement kit) 59
II. (Welded repair joint) 63
III. (Emergrncy repair saddle) 63
. Flushing
methods are being applied 64
I.  (normanlly) 64
1.Nguyên tc thc hin (Principle) 64
 tính toán: (Foundation) 65


2.Kim tra chì sau khi bm (Check lead after press) 87
Repair ductile iron. 88
I.   (Cutting of Pipe) 88
1.Kim tra (Inspection) 88
2.Các dụng cụ và thiết bị (Tools and equipment) 88
3.c thc hin (Procedure) 89
II. Correction of Deformed Spigot) 91
1.Kim tra (Inspection) 91
2.Dng c và vt liu (Tools and equipment). 91
3. thc (Procedure) 92
III. (large cracks, deformation of pipe body
is expected) 94
1.Kim tra (Inspection) 94
2.Thao tác (Procedure) 95
IV.  (chip) 97
1.Dng cu và thit b (Tools and equipment) 97
2.Kim tra ( Inspection) 97
3.Quy trình (Procedure) 97
V.  (Break) 99
1.Các thit b phc vc cho công tác sa sa. Nên dùng các công c (Tools
and convenience of the repair work, use of the following tools is
recommended) 99
2.Kim tra (Inspection) 99
3.Quy trình (Procedure) 99
VI. (Repair of External Coating) 101
1.Dng c, thit b (Tools and equipment) 101
2.c (Procedure) 102
Manual measuring devices 103
I. Panme (Micrometre) 103

 113
 114
 115
 116
 117
 118
(References) 119

Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
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 trên .
Symbol drawing of water supply network.

I.  (Symbol):
1.  (Water supply pipeline):

2.  (Other lines):


IV.  (Other details):
1.  (Reservoir, Tanks):

Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
11 2.  (Pump):

Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
12

Technical digging trenchs.

I.  (Principle):
  vì
        
trong thao tác l
Do not dig trenchs too wide or narrower than the size allowed for if wide
it will wasting materials and labor, if narrow will cause difficulties in
manipulating pipe and fittings installed.
 
Digging trenchs must be flat.
II. Trình  (Order of execution):
1.  (Ground preparation):

 
General arrangement of space construction based on the general ground
construction engineering design drawings of construction, the
construction sequence items out.


             rào
chắn, biển báo 
Pay attention to the requirements and safety regulations on construction,
environmental sanitation, dust, noise, fire, security, guaranteed not to
affect operation of the surrounding areas with system barrier system,
warning signs in accordance with

Mark digging
2.  (Cut the tarmac):
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)




Scope of application: For large-scale expose
ensure ground
(Equipment):
 (Excavator)
4.  (Digging trenchs): + 
n  



Digging trenchs must dug to the correct
depth specified by design, if digging deeper
trenchs designed to allow to fill them with
fine soil or sand to a depth regulations,
dress carefully watered to avoid skewing the
pipelines subsidence.
+ 

        
        

Bottom digging trenchs must be clean, flat.





In the case of ditches dug beneath groundwater or storm water
flooding should take measures to shielding measures to avoid
erosion and water pump used for digging ditches dry, If the soil
dug trench bottom is wet due to flooding, dredging clean backfill
soil in both wet and compacted carefully before install tube.
 
g.
In the case of soft soil can erosion to take measures to shield
walls and ditches dug carefully during construction.
5.  (Resist digging trenchs):
 (General requirements):
     
thì 
 :
(To ensure safety during construction excavation time digging trenchs
must resist digging trenchs to avoid erosion, the excavation time digging
trenchs to support):
+  (Quick assembly).
+  (Make sure the bearing capacity).
+  (Remove easily
after performing finish work).
+             
(Make sure the space of need in the area of construction tube
assembly).
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
17


 .
Transportation and storage pipes in site. I.  (Transportation and gathering in
site):
1.  (Lifting): 2.   (Lifting by hand).
+ cáp  (Use of wire rope or nylon
sling).
+ 
     (Enrure the load of pipe and fittings is
correctly balanced so that wire rope or nylon sling does not slip out).
 
         
(Pipe: Use of wire rope.
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
19

Place cushion pads to protect pipe surface. Do not lift pipe with
single rope. With rubber is highly recommended).

         



Pipe: Use of wire rope. Place cushion pads to
protect pipe surface. Do not lift pipe with single
rope. With rubber is highly recommended.          
         

Fittings: Use of nylon sling is highly
recommended. Place rubber pieces to avoid
rapid abrasion of nylon sling

2.  (Use of hooks)

        


When using hooks, be careful not to damage
the pipe or lining.
Cover hooks with rubber pieces.

Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
21         

58
40
31
25
21
18
16
14
12
10
7
6
5
3

(TH.2,3)
STANDARD
27
22
18
16
14
12
11
10
8
7
5
4
4

Pipes
JOINT CAO SU
Rubber gaskets

The storage temperature

  
25
o
C
(Storage temperature
should be below 25
o
C)

The humidity of the storage
atmosphere 

Exposure to light


Do not expose to light

Store in cool and dark.

ánh sáng.
Do not expose to light


Avoid directly on the
ground, especially soil
erosion likely.



Should be stored at normal
state, do not pull or strain
compression.
 


If you can not avoid
distortion, do so in the
short term storage


Storage conditions

Preservation
Tránh
Avoid

The storage temperature


o
C.
Storage temperature



Please don’t take joints
out of the packaging
- 
     

Rubber gasket should be
kept away from solvent,
oil, grease and other
deterious material.
-      

    

The rubber gasket
should, wherever
possible, be stored in a
relax form free from
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
24

tension, compression or
other deformation.
- 


If it is impossible to
avoid deformation, it
should be kept to a



Gethering pipes and fittings in the
contruction site have to ensure traffic safety


The socket and spigots of pipe have to be
sealed off before laying into trence.
Sổ tay Kỹ thuật Thi công Công trình Cấp nước (v.1)
25

 .
Construction and istallation of pipes. I. g (Ductile iron pipe installation).
1.   (Laying):
- 
Lower pipes into the trench without damaging them.
- Không  .
Do not hit pipe ends against the trench walls.
2.   (Clean):



Clean the pipe spigot, inside the
socket and the gasket.