1. Jazan Silos Project
Client : Main Contractor :
Prep. By
Planning Engineer / Haytham Gomaa

5. AGENDA
 PROJECT OVERVIEW
 PROJECT TECHNICAL DATA
 CONSTRUCTION PHOTOS

6. PROJECT OVERVIEW

7. PROJECT OVERVIEW
Party Role Organization
Client / Consultant Grain Silos and Flour Mills organization (GSFMO)
Contractor AL – Muhaidib Contracting Company
Contractual Overview
Contract Date 31-DEC-2011
Contract
Completion
28-FEB-2014
Time Extension 20 Months
Revised Completion 15-Nov.-2015
Contract Summary
Item No. Value (SR)
Original Contract Amount - 373,730,000
Approved Variation Orders 01 20,061,359
Contract amount included VO 1 393,791,359
Approved Variation order 02 17,256,761
Expected Contract Value Included VO 2 - 411,048,120

8. PROJECT OVERVIEW
Building Code Description Approx. Area (M2)
Process Building
W10/W20 Silo1 /Head House 1 7,584
W60/W70 Silo2/ Head House 2 7,278
PRODUCT CAPACITY = 120 ,000 TONS
Ancillary Building /Fence
A10 Admin Building 1 304
B10 Spare parts , Store 626
A20 Admin Building 2 1,148
A30 Sales Office 941
A40 Mosque 358
B50 Technical Building 1,824
B35 , B40 Toilet Building , Driver rest room 100
B70 Cafeteria 702
Fence 1730 L.M

9. PROJECT TECHNICAL DATA

10. PROJECT TECHNICAL DATA
A. Soil Works
1. Excavation works.
2. Pilling works.
B. Concrete Works
C. Steel Struc. Works
D. Project Storage Capacity
E. Process Used Systems
F. Process Conveyors
G. Ship unloaders
H. Electrical works
I. Firefighting works
J. Automation works

11. A. Soil Works
1. Excavation :
Soil excavated volume is 210,000
cubic meter to be considered for
both process & ancillaries areas
of works.
2. Pilling Works :
Total no. for executed piles is
1519 pile with average
approximate length 28 meter
under ground.

12. B. Concrete Works
Total amount of concrete
consumed to construct 2 units
of silos with all ancillary
buildings is equal to 95,000 m3.

13. C. Steel Structure works
Total weights for installed steel
structure works are equal to
1550 ton

14. D. Storage Capacity
Project storage capacity is equal to
120,000 ton of wheat .
This capacity is represented in 72 Silos
each silo can store 1,666 ton of wheat.

15. Wheat cycle passes on a lot of process like elevating , separation , cleaning
, weighing ... Etc.
• Elevating System (bucket elevators) : 8 bucket elevators are installed
with average height 65 m , 3 with height 30 m , 3 with height 12 m.
All with elevating speed 1000 ton/hr to elevate the wheat for
complete its cycle.
• Magnetic Drum System : The process for separation of metals from
the wheat.
• Pre-Cleaning System : The process for cleaning the wheat from the
solid particles and any defects.
• Pre-Tempering System : The process of adding water to wheat before
milling aids in producing consistent and good quality for finished
flours.
• Central Vacuum System : The process used for collect & separate dust
& small particles from wheat grains.
E. Process Used Systems

16. • Aspiration System : The process of collecting dust to cover all wheat
cycle from elevating and conveying process .
• Ventilation System : The system used for draw out the heat, humidity
and condensation of the wheat inside silos to save it from growing
bacteria.
• Electronic Weighs : There are 2 types of weighs are used for the
process of weigh the wheat before storage and during out-loading :
1. Electronic weighs : 2 with capacity 200 ton/hr are installed in
HH2 and 1 with capacity 1000 ton/hr is installed in HH1.
2. Out-Lead weighs : 6 weighs are installed in truck loading
buildings with average capacity 90 ton/hr.
• Pneumatic system & Compressed Air System : The process of Auto-
control of gates.
E. Process Used Systems

17. Conveyors that used in cycle of wheat flow
is classified to 2 types :
1. Belt-Conveyors : with total linear
meter 1065 meter & capacity 1000
ton/hr
2. Chain-Conveyors : with total linear
meter 940 meter.
F. Process Conveyors

18. G. SHIP UNLOADERS
2 ship unloader is
constructed on port quay
on a steel rail for flexible
movement and to increae
the served area
Each ship unloader has :
• Max unloading capacity
650 ton/hr.
• Boom length is 28.5
meter.

19. H. Electrical Works
Cables :
Pulled MV cables 4.30 KM.
Pulled LV cables 1308 KM.
Pulled Control cables 218 KM.
Generators :
7 Generators each one with feeding power
about 2.5 MVA to feed with total power 17.5
MVA to operate the factory in emergency status.
Synchronization panels & Switchgears :
2 Sync panels.
5 Switch-gears.
2 Ring main units.

20. A 3 types of fire suppression systems is installed
:
1. Fire Extinguishers : used in admin buildings.
2. FM200 : used in electrical substations.
3. Foam System : used in fuel tanks structures.
I. Firefighting Works

21. Automation works can be classified as :
• Cables:
Linear meter for pulled control cables reached to 218
KM.
• Temp. sensors = 216 sensor.
• Leveling sensors = 240 sensor.
• G. Sensors & devices = 3000 sensor & devise.
• Junction & sub-junction boxes = 2080 box.
• PLC & Remote I/O panels = 82 panels.
J. Automation Works

22. Construction Photos

23. Foundation - Pilling Works

24. Ware House B45 & Technical Building B50

25. Foundation – Raft Works

26. Finish Casting of Concrete in Silo1 Cluster B Walls

27. Silo 1

29. Ware House B45

30. Head House 2

31. Electrical Works inside Head House 2

32. Silo 2

33. Conveyors W50 & Q30

34. Sales Office Building A30

35. Cafeteria Building B70

36. Admin building A20

37. Admin building A20

38. Entrance Gates

39. www.muhaidibco.com