MUCP - UNITED CONCRETE PILES SDN BHDprecast box culvert, precast concrete manufacturers, precast concrete drains

Box Culvert

precast box culvert
precast box culvert
precast box culvert

SMALL SIZE BOX CULVERT WITHOUT DRY WEATHER FLOW [BC]


 

SMALL SIZE BOX CULVERT DIMENSIONS & PORPERTIES

NORMAL SIZE
(mm x mm)
B
(mm)
bt
(mm)
bb
(mm)
h
(mm)
H
(mm)
C
(mm)
t
(mm)
tt
(mm)
tb
(mm)
G
(mm)
WEIGHT
(tonnes)
Lid Invert
300 x 300 420 300 290 300 360 60 60 60 65 80 0.11 0.2
300 x 450 425 305 290 450 510 60 60 60 67 80 0.11 0.26
300 x 600 430 310 290 600 665 60 65 60 70 80 0.11 0.33
450 x 450 575 455 440 450 510 60 60 60 67 100 0.18 0.29
450 x 600 580 460 440 600 665 60 65 60 70 100 0.18 0.36

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STANDARD SIZE BOX CULVERT WITHOUT DRY WEATHER FLOW [BC]

precast concrete drains
precast concrete drains

 

STANDARD SIZE BOX CULVERT WITHOUT DRY WEATHER FLOW [BC]

NORMAL SIZE DIMENSION WEIGHT
(tonnes)
b
(mm)
h
(mm)
B
(mm)
H
(mm)
tb
(mm)
tc
(mm)
G
(mm)
J
(mm)
Lid Invert
600 300
450
600
740
740
740
370
520
670
70
70
70
70
70
70
140
140
140
128
128
128
0.26
0.26
0.26
0.24
0.30
0.35
750 450
600
750
910
910
910
530
680
830
80
80
80
80
80
80
140
140
140
128
128
128
0.32
0.32
0.32
0.37
0.43
0.49
900 450
600
750
900
1060
1060
1060
1060
530
680
830
980
80
80
80
80
80
80
80
80
140
140
140
140
128
128
128
128
0.37
0.37
0.37
0.37
0.40
0.46
0.52
0.58
1200 600
750
900
1050
1200
1390
1390
1390
1390
1390
695
845
995
1145
1295
95
95
95
95
95
95
95
95
95
95
150
150
150
150
150
138
138
138
138
138
0.51
0.51
0.51
0.51
0.51
0.61
0.68
0.75
0.82
0.89
1500 750
900
1050
1200
1350
1500
1700
1700
1700
1700
1700
1700
850
1000
1150
1300
1450
1600
100
100
100
100
100
100
100
100
100
100
100
100
175
175
175
175
175
175
163
163
163
163
163
163
0.73
0.73
0.73
0.73
0.73
0.73
0.81
0.88
0.96
1.03
1.10
1.18
1800 900
1050
1200
1350
1500
1650
1800
2030
2030
2030
2030
2030
2030
2030
1050
1165
1315
1465
1615
1765
1915
115
115
115
115
115
115
115
115
115
115
115
115
115
115
175
175
175
175
175
175
175
163
163
163
163
163
163
163
0.87
0.87
0.87
0.87
0.87
0.87
0.87
1.11
1.20
1.28
1.37
1.45
1.54
1.62

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FEATURE OF UCP PRECAST R.C BOX CULVERT

MUCPTM Box Culverts are available in both Standard Size (for nominal width between 600mm and 1800mm) and Super Size (for nominal width between 2100mm and 3600mm) in length of 1 meter as shown in Table 1,2 and 3. MUCPTM Box Culverts are available in both WITH and WITHOUT Dry Weather Flow [DWF) channels.

DESIGN CONSIDERATIONS

1. Design loading requirements for MUCPTM Box Culverts are in accordance with:
a) BS 5400: Part 2: 1978 modified by [b]
b) Department Standard BD31/01 Buried Concrete Box Type Structure issued by Departmental of Transport [UK]-Highway and Traffic.
c) JKR LTAL [Long Term Axle Load] and SV [Special Vehicle] requirements.

2. The design of Precast Reinforced Concrete Box Culverts is in accordance with BS 5400: Part 4: 1984.

3. MUCPTM Box Culverts are made from high strength concrete with a 28days characteristic strength of 40 N/mm2. Our products are produced by good quality Portland Pulverized-Fuel Ash Cement [PFA), which can perform much better in workability, durability and long term strength.

4. Concrete cover to reinforcement for:
- Standard Size Box Culverts = 25mm
- Super Size Box Culverts =30mm

5. Coefficient of the earth lateral pressure at rest = 0.6 and bulk density of soil =19KN/m3

6. MUCPTM Standard Size Box Culverts also comply with proof load test of 112.5KN over and area of 320mm x 320mm placed at any position on the Culverts Lid in Accordance with MS 1293: Part 1: 1992.

7. Hydrostatic pressure is eliminated by provision of 50mm diameter weep holes placed along the centerline of the invert wall.

8. The prepared bedding or piled foundation by others shall be adequate which would not cause any reverse effect to the culvert.

9. The backfill material adjacent to wall should be granular type of soil.

10. Standard supply of MUCPTM Standard Size Box Culverts [Not Exceeding 1800mm width and height] and Super Size Box Culverts [Exceeding 1800mm width and height] are designed to cater for backfill superimposed dead load NOT EXCEEDING 2.0 meter plus 45 units HB vehicle primary live loads.

11. For Box Culverts (Standard Size and Super Size] to cater for backfill MORE than 2.0 meter or NO backfill [direct impact], kindly refer to our Technical or Marketing Department.

12. For other loading conditions or sizes not shown in the tables here, please contact out Technical or Marketing Department for a special design.

STACKING

All inverts should be stacked uniformly on leveled ground.Lids should be supported with timber bearers at both end.

HANDING

Lifting holes [weep holes] are provided at the box culverts wall and lifting hooks are provided at both ends of lid for handing. It is recommended that a spreader beam to be used when slinging the inverts to avoid cracking at the wall base joint.




JOINTING

MUCPTM Box Culverts are supplied with plain butt joints. Cement mortar is normally used to fill the gap between box culverts.

LAYING PROCEDURE

MUCPTM Box Culverts should be laid on the prepared bedding [preferable) compacted sand bedding]. However, in bad ground, it may be necessary to excavate deeper or provide with piled foundation [by others] and place a layer of hardcore before placing the sand bedding in accordance to the engineer's [or s.o] specifications and details. Backfilling around culverts units should be done after the lid of the culverts has been installed and it should be carried out in even layers on both sides simultaneously.

For direct impact condition, the backfilling work has to be carried out together with proper compaction method to prevent ground settlement. Different level between the lid and ground will cause the horizontal force during passing by vehicle, which will damage the invert of the culvert

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