OKA CORPORATION BHD.
(519941-H)

Subsidiary Companies:
OKA Concrete Industries Sdn. Bhd.  (67634-M)
OKA Engineering and Trading Sdn. Bhd.
(329917-W)
OKA Readymixed Concrete Sdn. Bhd.
(329980-T)
Real Charisma Sdn. Bhd.
(442658-D)
Pembinaan Cahaya Emas Sdn. Bhd.
(601222-W)
OKA Steel Sdn. Bhd. (1205546-U)


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Products > L-Shape Wall

 


OKA RC L-SHAPE WALL                                                                   PDF Brochure

 

  

FUNCTIONS OF OKA L-SHAPE WALL:

  • Open Drains
  • Retaining Wall
  • Used as Storage/Fencing Walls

HANDLING OF OKA L-SHAPE WALL:

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.

Joints - OKA L-shape wall comes with plain butt joints. Gaps in between normally to be filled up with cement-sand mortar.

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.

 

 lw01-1a_AB.jpg

 

  
 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

Type 1: Level backfill with 10 kN/m2 of live load surcharge

Type 2: Non level backfill with max of 600mm height from top of wall and slope gradient of 30o

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:

  • Concrete grade shall be 40 N/mm2
  • Concrete cover = 30mm
  • Bulk density of backfill soil to be 19 kN/m3
  • Angle of internal friction of backfill soil = 30o
 lw01-2a_A4.jpg
  

  

 
  TYPICAL PRECAST L-SHAPE WALL PROPERTIES 
 
lw02-1a_ZD.jpg



lw02-2a_DE.jpg


IN VIEW OF CONTINUAL IMPROVEMENT OKA RESERVES THE RIGHT TO ALTER SPECIFICATIONS WITHOUT PRIOR NOTICE
MAR, 13




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