REQUEST FOR EXPRESSION OF INTEREST (EOI)
Title of the EOI:
Construction of maintenance facilities for high speed trains.
Date of this EOI:
20/02/2014
Closing date for receipt of EOI:
27/03/2014
Address EOI response:
Alameer Sultan Street North,
Alnaeem District (4)
Ahmed Al-Hamoody Street Building Nº 8
PO BOX 51656, Jeddah 21553, Saudi Arabia
GPS Coordinates: 21.626329, 39.136721
For the attention of:
Armando Fombella Cuesta
[email protected]
BACKGROUND
The Kingdom of Saudi Arabia (KSA) is developing a new world-class, railway network
which includes a new passenger railway line from Makkah to Madinah, via Jeddah. The
railway will be known as the Haramain High Speed Railway (HHR), it will be
approximately 444 km length. The Railway will be a high speed electrified passenger
line (up to 320 Km/h), with double track between Makkah and Madinah and standard
gauge line (1435 mm). Also the Railway is designed with facilities to run in the up and
down directions on both tracks. Furthermore, two workshops are designed for high
speed rolling stock maintenance, one in Makkah and another one in Madinah.
Renfe (inside which forms part of Al-Shoula Consortuium awarded of the HHR2) is
responsible, among other tasks, responsible for the design and construction of these
maintenance facilities.
DESCRIPTION OF REQUIREMENTS
Renfe invites qualified firms to submit their Expression of Interest to participate in the
upcoming competitive bidding exercise for the construction of maintenance facilities in
the frame of the Haramain high seed project. Detailed specifications and requirements
shall be communicated in due course in the tender documents but for the purpose of
this EOI, an executive summary is attached.
Renfe will conduct pre-qualification exercise to identify eligible Contractors and then
they must be approved by Saudi Railway Organization. Contractors that are deemed
prequalified will be considered for receiving the tender documents that will be issued
after both approvals are completed.
To be considered for pre-qualification evaluation, Contractors must submit:

A letter expressing their expression of interest for this process

Sufficiently detailed information according to the attached document “Civil
Works subcontractors. Instructions for pre-qualification”
Civil works subcontractors.
Instructions for
pre-qualification
Civil Works subcontractors. Instructions for pre-qualification.
1 Introduction and object.
Within the framework of the Makkah-Madinah High-Speed Line´s Construction Project
in Saudi Arabia (Haramain Project), RENFE, as a member of the Saudi-Spanish AlShoula Consortium, is responsible, among other activities, for the construction of the
rolling stock maintenance workshops of the Line, located in Makkah and Madinah.
Those companies aimed for the Civil Works related to this construction within the
framework of the Project, once the relevant contracting proceedings have started, they
shall previously pre-qualify as subcontractors according to the instructions specified in
this document and the annexes thereof.
2 Required documents.
The required documents to be submitted are as follows:
-
Check list (file “1.Check list template_Rev01.xlsx”) duly completed, ticking in the
column entitled “Included” those documents which, for whatever reason, are not
submitted. The structure of the check list herein shall not be in any case modified
by adding or deleting any row or column. Likewise, every observation that might be
deemed appropriate will be included under the column entitled “Comments”.
-
A cover letter in the file format included in “2 Letter template (2).docx”. This letter
shall be one extension page and it will be structured in two paragraphs: the first one
will be a brief description of the company, and the second one will state the
reasons for which the company wants to participate in the Haramain Project.
-
Documents specified in the Check list, in the same order as set out in the Excel file.
Generally, all the documentation shall be written in English. Official documents issued
in a different language shall be complemented by their relevant translation (sworn
translations are not required).
3 Options for pre-qualification.
With regard to the subcontractor pre-qualification, the following cases shall be
identified:
-
Local companies. In this case, the only documents to be submitted will be those
included in file "1.Check template_Rev01.xlsx list" under the section entitled "For
Local Companies or registered companies in KSA".
-
Joint Ventures between local and international companies: In this case, the local
partners will submit the same documents as in the situation mentioned above and,
additionally the documentation contained in section "For Joint Ventures (Local /
International) companies to work as Subcontractors".
-
Local branches from international companies: In this case, the local branch will
submit the same documents as in the situation mentioned above and, additionally
the documentation contained in section "For International Companies to work as
subcontractors".
Civil Works subcontractors. Instructions for pre-qualification.
4 Clarification on documents to be submitted by
suppliers.
The abovementioned documents refer to those listed under the section “Suppliers” in
file “1. Check list template_Rev01.xlsx”.
1. General information (company overview). Presentation
information and a global vision of the company.
including
general
2. Registration certificate. Registration in the Commercial Register.
3. Ranking certificate:
4. Commercial Registration/ Chamber of Commerce Certificate. Registration
Certificate issued by the Chamber of Commerce, which shall necessarily include
the term or expiration date.
5. Zakat certificate. Only compulsory for those companies based in Saudi Arabia.
6. Range of products. Description of the various product ranges manufactured and/or
supplied by the company.
7. Organization Chart. General organization chart of the company.
8. Industrial License when applicable. Industrial License, if available.
9. Financial data/Audited statement. Company´s Financial Statements for the last two
financial years, and duly audited.
10. Total no. of manpower List. General description of human resources.
11. Total no. of Personnel deployed for the project. Description of human resources to
be applied on the project.
12. QA/QC plan. Quality Certificates currently in force (IS0 9001, IS0 14001, etc.) and
the company´s Quality Plan, if available.
13. Safety plan. Documentation regarding Health and Safety.
14. Equipment List & its total no. List and general description of available equipment.
15. Completed Major Projects and its total cost. Main projects, specifying the total cost
for each of them.
16. Ongoing Projects. Main ongoing projects, specifying the total cost foreseen or the
contract value for each of them.
17. Accreditations if any. Certificates of satisfactory execution issued by the clients for
projects referred to in section 15.
18. Reference to the BoQ item (approx. %) and a clear reference to the Scope of works
and Geographical location. Description of the activity to be performed (for instance:
earthworks, construction, etc..) and its location (ex: Madinah, Makkah, etc…).
19. Transparency and evidence of being in possession of the Licenses associated with
the Scope of Works or the current status of the administrative process.
Civil Works subcontractors. Instructions for pre-qualification.
5 Presentation format.
The documents to be submitted shall be necessarily structured as follows:
-
First, the check list completed according to the instructions detailed in the previous
sections.
-
Second, the cover letter.
-
Third, an index of the documents submitted.
-
And finally, the documents submitted in the same order as they are mentioned in
the check list, and each of them preceded by a cover indicating the name of the
document submitted.
Two printed copies (hardcopies) and one computer copy (softcopy) will be submitted
according to the following formats:
-
Hardcopies: Two A4 size double-sided and spiral bound printed copies. There shall
be no difference between them (e.g. it will not be possible to print one in color and
the other one in black and White).
-
Softcopy: A single pdf file containing all the documents. Under no circumstances
may the documentation be submitted in several files. There shall be no difference,
neither in form or content, between the information contained in hardcopies or in
the softcopy.
6 Delivery instructions.
Hardcopies can be delivered by hand or sent by courier to the following address:
RENFE – KSA Branch
Armando Fombella Cuesta
Alameer Sultan Street North,
Alnaeem dist. (4),
Ahmed Al-Hamoody Street Building no. (8).
Jeddah, Saudi Arabia.
GPS Coordinates: 21.626329, 39.136721
e-mail: [email protected]
If, instead of hand delivery or courier, the documentation is sent by ordinary mail, the
post office box details are as follows:
P.O. Box 51656 Jeddah 21553
The softcopy may be submitted in two ways:
-
On physical media (CD, DVD or pen-drive) accompanying hardcopies.
-
Providing an internet link in order to download it.
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
EXECUTIVE SUMMARY. MADINAH WORKSHOP PACKAGE 2.
0
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
TABLE OF CONTENTS
1.
2.
INTRODUCTION. .................................................................................................................................... 2
PACKAGE 2 FEATURES DESCRIPTION. ..................................................................................................... 2
2.1. Track layout and superstructure .................................................................................................... 2
2.2. Road network and urbanization ..................................................................................................... 4
2.3. Workshop. ..................................................................................................................................... 6
2.4. Workshop structure ..................................................................................................................... 10
2.5. Additional structures to the Workshop ........................................................................................ 12
2.6. Services ...................................................................................................................................... 15
1
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
1.
INTRODUCTION.
The document herein includes the general features of the various parts of the Madinah Workshop
design to be implemented within the second construction phase (Package 2).
The Madinah Workshop is located on the left-hand edge (according to recent KP), and between KKPP
427+245 and 431+054 of the Haramain High Speed Line, covering an area of 50 ha approximately.
The railway link to the main line is guaranteed by both acceleration/deceleration lines connected on
both ends, and heading both ways for Madinah and Makkah.
The access to the tracks is also guaranteed by roads which should be in accordance with the nearby
Madinah´s 3rd Ring Road. This branch is shared with the mounting area in Track 4.
2.
PACKAGE 2 FEATURES DESCRIPTION.
Railway layout and superstructure techniques, as well as those regarding rail network and
urbanization, structure and architecture of the Workshop, auxiliary buildings structure and Workshop
services, developed in the relevant design project, are described below.
2.1.
Track layout and superstructure
The Madinah Workshop track layout has been developed in two phases:
 Phase I: corresponding to 2016 and 2027 period, with a total of 55 operational trains. The Madinah
Workshop will be built in its entirety during this phase.
 Phase II: it will start in 2028 and it is expected to be expanded to house a total of 100 HST.
Madinah Workshop´s track layout for Phase 1 is described below, according to the following
configuration:
 Access roads from the Main Line to Madinah Workshop.
 First level or light maintenance area, which is defined by seven tracks:
 Four tracks (8, 9, 10 & 11) which give service to the Light Maintenance Workshop. Track number
11 will end in a shunting neck where unit loading/unloading activities will be performed.
 Two tracks (6 & 7) for the pit wheel-lathe.
 A connecting track (5) which enables movement of units to the track yard avoiding use of the
aforementioned tracks.
 Stabling Track Yard defined by nine tracks:
 Five pure stabling tracks. (8, 21, 9, 22 & 23).
 One track for the automatic Washing Machine and blow cabin (20):
 One track for the paint booth (24).
 Access road to Type 2/heavy maintenance area (12).
 A connecting track (7) which enables movement of units to first type area avoiding use of the
aforementioned tracks.
2
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
 Heavy maintenance shop´s track yard made of 6 tracks (12, 13, 14, 15, 16 & 17). All of them are
deviations from track 12.
 One testing track (No.) to perform the test needed by HST before the starting-up.
 Track (No.) which enables access to the parameter control system.
Phase II
 Type 1/ light maintenance area, which is defined by six tracks:
 Four tracks (32, 33, 34 & 35) which provide service to Phase II first level maintenance shop.
 Two tracks (36 & 37) for the Phase II pit wheel-lathe.
 Stabling track yard, made of 10 tracks:
 Five pure stabling tracks (38, 39, 40, 41 & 42).
 One track for the automatic Washing Machine (43).
 One track for the paint booth (44).
 Phase II Type 2 Workshop is located in the southernmost area, and it is made up of 6 tracks (26, 27,
28, 29, 30 & 31).
The access from Makkah is located in track 1, while the access from Madinah will be performed in track
2.
The aforementioned track layout can be observed in the following drawing.
With regard to the superstructure, the tracks to be set out have a total length of 17.200m. From these,
in the outer tracks, a ballasted track (13.090m) has been designed. There are two different types of
tracks inside the building and concrete areas: embedded track 1.475 m (transit zones and concrete
3
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
platforms); and tracks set on external pillars 2.635 m (in maintenance pits inside Heavy & Quick
Maintenance buildings).
The rail used for this purpose is 60E1 and type AI-04 international gauge sleeper, with W-14 rail
fastening and SKL14R clip.
Switchings and crossings have been proposed to connect the various tracks. Generally, DSIH-G(+3)-60E1190-1:7-CC-TC 190-radius deviations, with a total of 34 units in the entire Madinah Workshop.
DSIH-G-60E1-250-0.11-CC-TC 250-radius deviations will be use for the different geometries, using a total
of 3 units.
There are also 4 TUDIH-G-60-190-0.11-TC crossings and 1 TSUIH-C-60-0.22-R frog.
2.2.
Road network and urbanization
For the correct running of the Workshop, a Road Network has been design to enable the provision of
service for each internal facility.
The main access to the Madinah Workshop is guaranteed from Al Malik Rd (3rd Madinah Ring Road)
through the actual path located 230 m. away from the workshop access control. The access road is the
same for the Mounting Area in Track 4 and Madinah Workshop, and it will be designed and built by P1P1,
previous phase within the Haramain Project
Inside the Workshop, the road network is structured by areas to which it provides service:
 Stabling Zone: Access roads to vehicle loading/unloading area, water treatment plant, and stabling
bundles.
 Maintenance access: it connects the stabling bundle roads to the Workshop.
 Contour East: it provides access to the testing track.
 Maintenance North: it enables a complete access to the north side of the Workshop.
 Contour West: road around the Workshop which will give access to the future Heavy Maintenance
Workshop (Phase II).
4
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
Generally, roads are designed to reach a maximum speed of 20 km/h as a security measure, since there
may be certain circulation of heavy trucks in different operating stages. This aspect has also been taken
into account for pavement design.
Additionally, vehicle movements and turns, as well as visibility have been tested in order to guarantee
optimum safety conditions where relevant vertical and horizontal signs have been proposed.
In accordance with the aforementioned, we can distinguish three types of roads with different width:
 The access road is double track. Each track is 3,65 m wide and it has 4:1 pavement slope and 0,5
hard shoulder.
 Section type 1 (Road section type 1 in drawing), also double track and 3,65 m wide each track, hard
shoulders of 0,5 m and 3:2 pavement slope, for main roads in the complex, and
 Section type 2 (Road section type 2 in drawing) with only one 5 m wide track and 0,50 m hard
shoulder, which corresponds to the Western part.
These sections can be identified in the following drawings:
5
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
With regard to urbanization several areas have been reserved, distributed all along the complex for car
parking services, with a total of 367 parking spaces for light private vehicles, 5 parking spaces for trucks
under 17 m and 2 parking spaces for lorries equal to, or over, 28 m.
The pavement of the car park has the same features as the Workshop urbanization roads.
Besides, sidewalks have been projected to connect parking areas with the various facilities of the
Workshop, which enables circulation of pedestrians under optimum safety conditions. The walkways are
1,70 m wide.
2.3.
Workshop.
The First and Second type Workshop to be implemented has been designed as a “single L-shaped prism”
being the First type Maintenance area the largest one, and the Second type Maintenance area the
shortest and widest one.
It can be considered as a single building with architectural continuity, although with different spaces
according to operational levels.
There are some differences due to the various operations and required equipments in each of the
buildings and, for example, headroom in the Second type Maintenance area will be 10 m, while for the
First type will only be 8 m. Both workshops´ areas are designed with their own storage rooms, offices
and changing-rooms.
The First Level Maintenance Area is approximately 16.650 m2 (450x37m) , where type 1, 2, 3 and some
type 4 activities can be performed. It has four 450m long electric tracks over track pillars, which makes a
total of 8 maintenances positions for individual trains (single unit) ensuring access to rolling stock roof
and side access.
6
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
On the other hand, the Heavy Maintenance, has an area of approximately 27.600m2 (120x230m). It has
six tracks with northern access, where train lifting activities can be performed. Two of these are pit
tracks, one of them is set on track pillars and the other one is a simple-pit track, while the remaining 4
are embedded tracks.
In the southernmost area, there will be a shunting car to transport rolling stock (cars and bogies)
transversally between tracks.
7
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
The following table shows the areas for each zone: English terminology is included to better
identification of the plans, if appropriate:
AREA
SURFACE (m2)
GROUND FLOOR
HEAVY MAINTENANCE WORKSHOP
WORKSHOP AREA
BOGIE ELEVATION TRACKS
WHEEL-SET MOUNTING AREA, PRESSES, BEARINGS & WHEELS FITTING
LOCOMOTIVES WAREHOUSE
LABORATORY
HIGH POWER & ELECTRIC ENGINES
TOOL MACHINE AREA
PNEUMATIC WORKSHOP
DIESEL ENGINES
SHOCK ABSORBER WORKSHOP
AIR-CONDITIONING EQUIPMENT LIFTING SHOP
TESTING LOCOMOTIVES WAREHOUSE
BEARING WORKSHOP
TRAIN INTERIOR WORKSHOP
CONTROL ROOM
ELECTRONIC WORKSHOP
WHEEL BASE MAINTENANCE
BATTERIES & PANTOGRAPH WORKSHOP
SCHAFFENBERG WORKSHOP
WELDING WORKSHOP
27 600
11 960
891
1 948
1 130
42
504
306
314
378
208
905
498
192
191
109
211
54
158
85
114
8
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
AREA
SURFACE (m2)
WC CLEANING
CLEANING WORKSHOP
LOADING AND UNLOADING AREA
WASHING/BLOWING BOGIES ENGINES
WAREHOUSE (incl. GENERAL, SPARE PARTS & SMALL PARTS WAREHOUSE)
RUBBERS
TELECOM & SECURITY
SIGNALING
ENERGY
BATTERIES
PAINTING & POLYESTER AREA
ENGINE WORKSHOPS
BLASTING BOOTH
PASSAGEWAYS & COMMON AREAS
QUICK MAINTENANCE WORKSHOP
WORKSHOP AREA
AUXILIARY ROOM 1
TELECOM ROOM 1
BOXES 1
ELECTRIC BOARDS
COMPRESSED AIR
WC
TELECOM ROOM 2
AUXILIARY ROOM 2
AUXILIARY ROOM 3
STORAGE FACILITY
BOXES 2
COOL WATER
TELECOM ROOM 3
LOCAL OPERATION CONTROL
92
119
226
150
3 237
57
104
102
102
102
252
143
146
2 570
16 650
14 754
104
39
376
78
78
56
30
34
9
397
544
54
24
73
DISPATCH AREA
DISPATCH AREA
COMPRESSED AIR
BACKUP GENERATOR
ELECTRIC BOARDS
GASES
COOL WATER
3 450
3 090
97
37
38
48
140
PIT LATHE FOR WHEELS
331
SUBTOTAL
48 031
FIRST FLOOR
HEAVY MAINTENANCE
OFFICES
PRAY ROOM
LOCKERS ROOMS & TOILETS
CLEANING
PASSAGEWAYS & COMMON AREAS
2 320
1 284
66
458
9
503
9
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
AREA
2.4.
SURFACE (m2)
QUICK MAINTENANCE (AXIS 1-13)
OFFICES
PRAY ROOM
TOILETS
PASSAGEWAYS & COMMON AREAS
882
516
74
25
267
QUICK MAINTENANCE (AXIS 46-51)
LOCKERS ROOMS & TOILETS
CLEANING
PASSAGEWAYS & COMMON AREAS
400
299
15
86
SUBTOTAL
3 602
TOTAL
51 633
Workshop structure
From a structural point of view, the Workshop is designed as a metallic structure which enables open
spaces needed for First and Second type Maintenance, bridge cranes for car-body assembly, disassembly
and transport, as well as some areas for offices, changing-rooms and toilets.
The structural solution consists in the use of classic metallic fix frames separated every 8 or 10 meters
longitudinally, depending on zones and loads, in order to optimize costs, and also forced by the need to
maintain certain standard dimensions in some areas such as boxes in first level maintenance areas.
Similarly, roof and frames are made of latticeworks or plate girders depending on the light between
cross-supports, and always aimed at optimizing costs to the extent possible according to the techniques
and material need, and giving the roof a 10% slope and minimizing roof´s low spots so that the
maintenance activities, due to sand accumulation, can be reduced.
Due to the workshop´s great length, it shall be provided with expansion joints so to avoid any problems
with stress produced by extreme temperature fluctuations in Saudi Arabia.
The main structural complexity regarding this building is the high number of bridge cranes with very
different loading capacity and different walk distances, which happen to overlap sometimes. These
movements have been defined in the calculation and clearly set out in the project, but without affecting
the functionality of the complex in any case, to optimize the building structure costs.
The foundations will be made of simple footings, according to land characteristics and the geotechnical
program´s recommendations.
The following drawings show structural cross-sections of the complex.
10
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
Finally, it shall be noted that the entire structure has been designed in accordance with the applicable
law in the Kingdom of Saudi Arabia, and under the applicable American and European standards
according to the good practices prevalent in the Kingdom. The Client´s supervision (SRO) has been
carried out by an experienced local company (DAR) and bearing in mind the Consortium´s on site
experience regarding similar structures in mounting areas in tracks 2 and 3, all of this aimed at
minimizing problems during the construction and operation periods.
11
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
2.5.
Additional structures to the Workshop
Within the whole Madinah Maintenance Workshop, there are a series of external facilities that will be
needed to carry out all the activities and operations in the complex. Particularly, those three activities
which are expected to be tendered in this Package 2 which are as follows:
 Vehicle loading/unloading area.

Control room
 Covered area for units stabling
Vehicle loading/unloading area.
It is located on the northernmost area of the workshop, in the middle of the complex, in the
prolongation of track 11, and it basically consists of a pitched roof built with a metal structure with no
side enclosure walls. With regard to dimensions, it is located in a rectangular area of 416,44 m2 (35,90
m x 11,60 m) with interior headroom of 10,50 m and 7,74 m wide.
Regarding its usefulness, this building has been designed for loading/unloading and assembly of the first
trains to arrive at the railway maintenance complex in Madinah. For this purpose, it has space to house a
Gomilsa Bridge Crane or similar 40 T equipment inside the structure.
12
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
Control room
The access control room is located on the northernmost area of the complex. It has a small rectangular
one-floor building with a floor area of 41,76m2. (8,70 x 4,80 m2). Tasks to be developed in this building
are access control activities. Therefore, two job posts have been provided, as well as large windows to
ensure enough visibility of the access roads. It has two runways at each end of the building so to enable a
quick access to the roads for visual inspections of the vehicles. It also houses a technical room for safety
data processing, a storage room and a toilet.
13
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
Covered stabling area
It is located on the northernmost area of the Madinah Workshop and it basically consists of a covered
structure over tracks 8, 9, 21, 22 and 23, made of metallic pillars and frame with no side enclosures. It
has a floor area of 12.055,75 m2, 475,65 m long, and 25,65 m constant wide, except at the beginning and
at the end of the bundle covered, where it narrows to 6,50 m.
Given its length, it has been divided into 9 modules: 7 central modules, and two side modules, aimed at
providing homogeneity and facilitating the construction process, while reducing design costs. The
drawings below illustrate the above mentioned structure:
14
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
2.6.
Services
The required installations for this Workshop and its activities, which meet the supply needs under this
package are, waste-water system, water supply, electricity, lighting and fire-preventing facilities.
 Waste-water system
 Water supply network
 Electricity
 Lighting
 Fire-preventing facilities
Waste-water system
This network will be the separating type, which guarantees complete independence of both waste-water
and industrial water draining systems.
Rainwater draining system will dump water directly to the ground, while the rest will be poured into a
small treatment plant under "eco-friendly" criteria of the Kingdom of Saudi Arabia.
The next diagram shows the purifying process:
DITCHES
MANHOLES
DRAINAGE SYTEM
(PIPES)
RAINFALL WATER
MANHOLES
ORGANIC SEWAGE
SEPTIC TANK
INDUSTRIAL SEWAGE
HYDROCARBON
SEPARATOR
POINT OF
DICHARGE,
WITH
SAMPLER
GROUND
ORGANIC SEWARAGE
SYSTEM (PIPES)
SEWAGE TANKER –
SUCTION TRUCK
TWO SITES:
SEPTIC TANK
GROUND
PIPES
MANHOLES
ONE SITE:
POINT OF
DISCHARGE
SEWAGE TANKERSUCTION TRUCK
MANHOLES
WASTE
WATER
TREATMENT
PLAN
INDUSTRIAL
SEWARAGE SYSTEM
(PIPES)
Water supply network
The water supply network is a cross-linked network which connects all the installations requiring water
supply. It includes the infrastructure required for its proper supply, similar to any other urbanization in
Spain. It has the following features:
 Drinking water reservoirs: with water supply through tanker trucks.
 Distribution network for water supply.
 Pumping station: These pumping groups have been designed to deliver proper supply pressure to
the relevant points.
15
HARAMAIN HIGH SPEED RAILWAY.
PHASE 2
Electricity
Power supply will be delivered through a medium-voltage installation (33kV) from a Substation close to
the Madinah Workshop which connects to the main transformer in Madinah Workshop. Both the
connection and the transformer are not included within the scope of works contracted for Phase 2. From
this point, 33 kV will be delivered to different transformers installed in the relevant points. This
transformer will deliver low-voltage supply to work equipments.
Likewise, another additional power supply has been designed as an auxiliary element through three
generators, in case the General power lead breakdowns. Generators have been designed in order to
meet the basic demands of the Workshop. In the same way as the connection, the power supply and
installation of these generators do not fall within the scope of the works contracted for Phase 2.
However, coordination of the relevant activities should be envisaged in both cases.
Urbanization lighting
A network of lights will be installed to enable sufficient visibility to the tracks and outer spaces of the
complex that ensures proper progress of the work, even when there is limited natural light, and bearing
in mind that the Workshop may have to be operational 24 hours non-stop. The following drawings
illustrate a simulation with optimal levels under the Specification and Saudi regulations.
Urbanization Fire-preventing facilities
It will be necessary to provide the Workshop with a fire-preventing water pressure distribution system.
All of this shall be performed in compliance with Saudi regulations and after approval by the Civil
Authorities of the Country.
It consists of buried tanks and pumping system to provide sufficient pressure to the network, and a
network of hydrants with their corresponding underground piping network near the buildings to provide
service to firefighting trucks.
16