OKA CONCRETE INDUSTRIES SDN. BHD. (67634-M)
FUNCTIONS OF OKA L-SHAPE WALL: -
HANDLING OF OKA L-SHAPE WALL:
Open Drains Retaining Wall Used as Storage/Fencing Walls
Site Stacking - OKA L-shape wall shall be stacked on leveled ground at site. Site Laying/Installation - OKA L-shape wall shall be laid on well compacted ground bedding.
ADVANTAGES OF OKA L-SHAPE WALL: -
Finish products manufactured with dimensional accuracy and consistency under control factory environment. Simple application and maintenance free products. OKA L-shape wall can be off loaded directly from transport and assembled in a single operation. Easy in handling and laying.
-
Joints - OKA L-shape wall comes with plain butt joints. Gaps in between normally to be filled up with cement-sand mortar.
TYPICAL IMPOSED LOADING ON OKA L-SHAPE WALL: TYPE 1 – LOADING
TYPE 3 - LOADING
TYPE 2 - LOADING
10kN/m2
30 o
600 mm Max. Surcharge
10kN/m2
Insitu RC Capping Beam (by others)
Roadway 1200mm
Weep holes 900mm
900mm R = 150mm Varies OKA Precast DWF Unit
Varies
PRECAST RC L-SHAPE DRAIN SYSTEM
H
H
Weep holes
Varies
[Type the document subtitle]
600mm B
Insitu Shear Key When Necessary (by others)
PRECAST RC L-SHAPE RETAINING WALL
DESIGN CRITERIA: -
Structural design is in accordance to BS 8110. Hydrostatic pressure is not considered in design as 50mm weep hole will be provided to relieve water pressure behind the wall. Design loadings are generally categorized in 3 types: Open Drain – Short leg backfill with granular soil 2 Type 1: Level backfill with 10 kN/m of live load surcharge Type 2: Non level backfill with max of 600mm height from top o of wall and slope gradient of 30 Retaining Wall – Long leg backfill with granular soil Type 3: Level backfill or non-level backfill similar to above type 1 and type 2 loading condition
MATERIAL SPECIFICATION: -
2
Concrete grade shall be 40 N/mm Concrete cover = 30mm 3 Bulk density of backfill soil to be 19 kN/m o Angle of internal friction of backfill soil = 30 IN VIEW OF CONTINUAL IMPROVEMENT OKA RESERVES THE RIGHT TO ALTER SPECIFICATIONS WITHOUT PRIOR NOTICE MAR, 13
TYPICAL PRECAST L-SHAPE WALL PROPERTIES
OKA PRECAST DWF UNIT
STANDARD DIMENSIONS OF OKA L-SHAPE WALL Applicable For All Loading Conditions (Type 1, 2 & 3) H (mm)
B (mm)
tw (mm)
ts (mm)
bt (mm)
915 1220
1080 1250
100 100
100 100
150 300
Weight per unit (tonne) 0.49 0.62
1520
1420
100
100
300
0.72
1830
1690
150
150
300
1.22
2130
1990
150
150
300
1.41
2440 2740
2300 2600
150 200
150 200
300 300
1.59 2.45
3050
2910
200
200
300
2.72
3350
3210
200
200
300
2.97
3660 3520 200 200 300 3.23 Above are standard OKA L-Shape wall dimensions and generally recommended with max. 200mm capping beam height. Starter bars shall only be provided upon request if required for the construction of insitu capping beam. Standard length of OKA L-Shape Unit is 1000mm. Non standard sizes with different loading conditions can be specially designed and manufactured upon request.
OKA CONCRETE INDUSTRIES SDN. BHD.
(67634-M)
SUDSIDIARY OF OKA CORPORATION BERHAD (519941-H) Head Office : No.6, Lebuhraya Chateau, Off Persiaran Kampar, 30250 Ipoh, Perak Tel : 05 – 254 2741, 05 - 254 2745, 05 - 254 2746, 05 - 254 2748, 05 - 254 2218, 05 - 253 1734, 05 - 242 5211, 05 - 242 5212 Fax : 05 - 253 2403, 05 - 241 1851 E-mail :
[email protected] Homepage : http://www.oka.com.my Perak 8km, Off Jalan Gopeng/ Batu Gajah, 31300 Kampung Kepayang, Ipoh, Perak. Tel : 05 – 366 3516/ 366 6457 Fax : 05 – 365 6505
Johor Lot 548, Mukim Senai, Jalan Seelong, 81400 Senai, Johor. Tel : 07 – 551 1008 Fax : 07 – 551 1011
Negeri Sembilan PT2500, Batu 2½, Jalan Pajam-Batang Benar, 71800 Nilai, Negeri Sembilan. Tel : 06 – 799 9287 Fax : 06 - 799 2118
Pahang Lot 2917, Batu 3, Lebuhraya Tun Abdul Razak, 26300 Gambang, Pahang. Tel : 09 – 546 1371 Fax : 09 – 546 1560
Kedah H.S.(D) 72875 NO.PT 583, Pekan Bukit Selambau, Daerah Kuala Muda, Kedah Tel : 04 – 419 1523 Fax : 04 – 419 1523
Kuala Lumpur No : 48, Jalan 8/149K, Bandar Baru Seri Petaling, 57000 Kuala Lumpur. Tel : 016 – 550 0089 Fax : 03-90563532
IN VIEW OF CONTINUAL IMPROVEMENT OKA RESERVES THE RIGHT TO ALTER SPECIFICATIONS WITHOUT PRIOR NOTICE MAR, 13
