italferr presentation
DESCRIPTION
Oman Rail PresentationTRANSCRIPT
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OMAN RAILWAY PROJECT
Muscat, September 15, 2013
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Technical Brief
Project Critical Issues
Signaling Systems
Opportunities for Plants and Equipment
Index
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Technical Brief
Total Length of 2244 km, divided into 9 Segments linking Omani borders with UAE
to Muscat, as part of GCC Railway
Network, and to the southern parts of the
country at Port of Ad Duqm, Port of
Salalah and to Yemen border;
Double Track non-electrified railway line with Continuous Welded Rail (CWR);
Mixed Freight and Passenger traffic;
Maximum speed of 120 km/h for freight trains and 220 km/h for passenger trains
(corridor design up to 350 km/h);
Maximum permissible axle load: 32,4 tons;
Design Standards: Arema/International Std;
Signaling System based on ETCS Level 2;
Telecommunication System based on GSM-R based.
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Segments Definition
Oman Rail Project is divided
into 9 Segments for a total length of 2244 km
Segment Sector Sector Description Approx. Length Km
1
a Sohar to UAE Border at Sunaynah / Al Ain 136
b Al Buraymi Spur 27
c Spur to Sohar Railway Yard 8
2 a UAE Border at Al Ain - Sinaw 330
3 a Sinaw - Ad Duqm 340
4 a Ad Duqm - Thumrayt 554
b Thumrayt - Salalah Port 142
5 a Sohar Port - Muscat (Al Misfah) 242
b Link for Muscat Central Station 20
6 a Al Misfah - Sinaw 146
7 a Sinaw - Ibra 84
8 a Thumrayt - Mazyounah 157
9 a Sohar Port to UAE Border at Khatmat Milahah 58
Total Km 2244
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Segments Routes
North
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Segments and facilities placement
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Segments and facilities placement
SEGMENT 1 sector a
Sohar to UAE border at Sunaynah/Al Ain
SEGMENT 1 sector b
Al Buraymi Spur
SEGMENT 1 sector c
Spur to Sohar railway Yard
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SEGMENT 2
Sunaynah to Sinaw
Segments and facilities placement
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SEGMENT 3
Sinaw to Ad Duqm
Segments and facilities placement
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SEGMENT 4 sector a
Ad Duqm to Thumrayt
SEGMENT 4 sector b
Thumrayt to Salalah
Segments and facilities placement
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SEGMENT 5 sector b
Link for Muscat
Central Station
SEGMENT 5 sector a
Sohar Port to Muscat
(Al Misfah)
Segments and facilities placement
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SEGMENT 6
Al Misfah to Sinaw
Segments and facilities placement
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SEGMENT 7
Sinaw to Ibra
Segments and facilities placement
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SEGMENT 8
Thumrayt to Al Mazyounah
Segments and facilities placement
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SEGMENT 9
Sohar Port to UAE border
at Khatmat Milahah
Segments and facilities placement
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Project Critical Issues
Geology
Oman Mountains, located on south
eastern corner of the Arabian
Peninsula, form an arcuate chain,
approximately 700 km long and up to
120 km wide, stretching from the
Arabian Gulf and Straits of Hormuz in
the northwest to the Arabian Sea in
the southeast.
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A special attention will be given to locations of difficult soils and rocks
formations:
sabkha soil,
weathered rock
drifting sand
in order to establish a detailed stratigraphy reconstruction and therefore to
allow the most suitable mitigation measures to be designed.
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Project Critical Issues
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The Project envisages the necessity of tunneling to overcome the
orographic situation of the territory.
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Tunnelling
The alignment study and Concept Design aim at reducing to a minimum
the construction of tunnels.
The PDC will determine the type, location, length and cross sections of
such structures, taking account of the relevant geological and hydrological
conditions.
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Tunnelling
Tunnel cross-section will depend on:
1. Aerodynamic effects related to the
design speed on the line;
2. Rolling stock gauges;
3. Safe clearances for pedestrian
emergency evacuation;
4. Gauges and clearances for
miscellaneous equipment
associated with railway operation
and safety.
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Sand Mitigation Study
Design of the most suitable Sand mitigation
measures, taking also in account the
Maintenance Regime to be applied during the
Operation.
Blown sand represents a critical issue in
Middle East countries such as Oman, Saudi
Arabia, UAE, etc., as it affects severely
roads and railway infrastructures.
Scope of Sand Mitigation Study
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Design approach for Sand Mitigation
Analysis of sections without any mitigation interventions, to assess the effectiveness of the mitigation proposed;
Analysis of sections mitigated with dunes in different geometric configurations (1 dune, more dunes, embankments or trenches);
Analysis of sections mitigated with barriers in different geometric configurations (different height barriers, embankments or trenches or suitable vegetation).
2D fluid dynamic simulations:
Geomorphologic study of the sites (soil composition, morphology of the area, geometry of the roughness of the ground);
Meteorological analysis: data from the literature or provided by the authorities / government agencies on the statistical study of weather and in particular wind
(quantitative definition of wind fields in the areas of construction of the railway and
for different return periods in terms of direction, intensity, wind speed and peak,
etc.);
Analysis and characterization of sand potentially transported (grain size curve, specific weight, etc.).
Data collection:
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Design approach for Sand Mitigation
Analysis of sections without any mitigation interventions, to assess the effectiveness of the mitigation proposed;
Analysis of sections mitigated with proper sand trapping measures in different geometric configurations;
Fluid dynamic simulations:
Geomorphologic study of the sites (soil composition, morphology of the area, geometry of the roughness of the ground);
Meteorological analysis: data from the literature or provided by the authorities / government agencies on the statistical study of weather and in particular wind
(quantitative definition of wind fields in the areas of construction of the railway and
for different return periods in terms of direction, intensity, wind speed and
directions, etc.);
Analysis and characterization of sand potentially transported (grain size curve, specific weight, etc.).
Data collection:
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Signaling and Telecommunication
Critical issues
Environmental Condition Presence of sand;
High temperature and thermal shock.
Maintenance Distance between faulty device and maintenance sites;
Power source availability.
Approach
Right choice of wayside devices both for Signalling and TLC; System architecture design (redundancy, more sources, etc.);
Simulations of radio coverage;
Right Placement of Facilities for maintenance (depot and workshop);
Right Sizing of devices stocks.
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Signaling
The signaling system will be designed to meet the highest standards of
flexibility, modularity, availability and with easy integration to the existing
infrastructure.
The performance based specifications for the signaling system will include the
following requirements:
ERTMS/ETCS Level 2, with a centralized OCC and no line side signals; GSM-R Telecommunication platform Train Detection System used to be suitable to the desert environment; Rolling Stock Management System integrated with OCC functions and
several check points installed by line side;
Implementation of COTO functionality (Computerized Optimization of Train Operations); Design developed according to European Rules (CENELEC 50126, 50128,
50129, 50159-1 50159-2).
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Signaling
Signaling_UNISIG RULES and ERTMS L2 Data flow
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Project Initial Data
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Component Quantity
Rails 12,000 km
Sleeper 10,200,000
Fastening 40,800,000
Track Components
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Component Quantity
Elastic pads 20,400,000
Ballast and
subballast
23,000,000 m
Switches and
crossing
670
Track Components
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Earthworks, Embankments and Drainage
Component Quantity
Geotextiles 60,000,000 m
Drainage (track
side pipes and
manholes)
2,250,000 meters
of pipes 13500
manholes
Earthworks 20,250,000 m
Cut and fills Cut 648,980,500
m associated fill
1060,000,000 m
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Roads and Row
Component Quantity
Un Metaled Roads
one side of ROW
3000 km
Metal Roads twin
carriage
1000 km
Security Fencing 6500km fencing
and 1200
pedestrian gates
and 300 vehicle
gates
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Structures
Component Quantity
Tunnels 35 km
Viaducts 45 km
Rail bridge 39 km
Wadi bridges 48 km
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Structures
Component Quantity
Animal
crossing
310
Pedestrian
crossing
98
RCC culverts 2,750,000 m
Flyovers/Und
erpasses
245
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Stations, depots and maintenance yards
Component Quantity
Stations small 30
Stations
intermediate
10
Stations large 6
Marshaling
yards
8
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Workshops
Component Quantity
Intermodal yards 9
Rolling Stock
Service Facilities
5
Heavy Duty
Maintenance
Workshops
3
Central Workshop
for maintenance
6
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Operation control centre
Component Quantity
Main
operational
control centre
1
Subsidiary
operational
control centre
5
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Signalling supply
System/equipment
Signaling supplier
Local
partner
ETCS wayside equipment X
ETCS on board equipment X
Control Center X
Electronic interlockings X
Point machines X
Track circuits X
Hot Box Detectors X
Cables (e.g. power, low voltage, fiber optics,
etc.)
X X
Signaling telecom equipment (e.g. SDH,
access equip, etc.)
X X
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Signalling supply
System/equipment
Signaling supplier
Local
partner
Power supply and distribution systems (e.g.
UPSs, batteries, etc.)
X X
Design X
Support (and training) to installation X
Installation (e.g. mechanical, electrical) X
Support (and training) to test &
commissioning
X
Test & commissioning X X
Training X X
Project Management X X
Maintenance X
Components repair
X
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Rolling stock for freight and passengers
Component Quantity
Freight locos 40
Shunting locos 30
Recovery locos 5
Diesel multiple
units (DMU)
passenger
30
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Component Quantity
Diesel units
(Lokos)
passenger
trains
15
Passenger
coaches
80
Freight Wagons
mixed type)
500
Rolling stock for freight and passengers
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Track components: Supply and Production
production
1. Rails
Quantity required: 12,000 km of rails 670,000 bars, 18 m length or 1,000,000 bars,12 m length
Quality control: supply from a qualified international supplier; the production process is subjected to a large number of quality control
steps.
Rail production plant
Rail Production plant in Oman it could be profitable also in view of future maintenance of railways
Rail Supply from foreign plants or existing plants in Middle East or bordering Countries
Stocking area
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Track components: Supply and Production
production
2. Sleepers
Quantity required: 10,200,000 sleepers
A large number of plants required in different locations nearby the future
railway alignment.
Production of a medium size plant is about 300,000 sleepers per year
At least 5 production plants are required to supply sleepers
in a range period of 4-5 years
Sleepers Production plant
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production
Quantity required: 23,000,000 cubic meters of ballast and subballast
A medium size quarry can have a production
of about 500/800 cubic meters per day
At least 10 quarries should be opened for stone
mining during the period of construction
Ballast quarry Crushing and screening plant
Track components: Supply and Production
3. Ballast
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production
Quantity required: 670 switches and crossing
For switches and crossing, supply
from qualified international suppliers is
advisable
Track components: Supply and Production
4. Switches and Crossing
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Plants and facilities for civil works
production
1. Work site
Areas equipped with plants facilities involved in works construction; Areas with logistic function equipped to host workmen and administrative
personnel during construction.
Work sites also represent authentic villages, independent and also equipped
for sanitary emergencies and leisure activities
Work sites can be located every 50-100 km alongside railway alignment
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Plants and facilities for civil works
production
2. Stocking sites
Areas dedicated at stocking large quantities of construction material
Soil for embankments Granular material Ballast Precast elements
These areas may be located alongside the railway alignment and anyway close
to the related works
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Plants and facilities for civil works
production
3. Crashing plants
Crashing plants can extend over areas of about 3,000 sqm, with research and development department, technical department, sales department, administrative
department, manufacturing unit and spare part warehouse.
feeding and pre-screening; crushing and screening; washing and recovery; transport and storage; classification and automation for both fixed and mobile structures.
Production and processing of aggregates, including:
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Plants and facilities for civil works
production
4. Concrete batching plants
Concrete batching plants produce various kinds of concrete including quaking concrete and hard concrete, suitable for large or medium scale building works, road and bridge works and precast
concrete plants, etc.
More recently is the availability of the mobile concrete batch plant. Multiple containers separately transport all the elements necessary for the production of concrete, or any other mixture, at the
specific job site.
Once production is started, the various components enter the mixer in the required doses and the finished mixed product comes out continuously ready for final use. It is also suitable for the
recovery of materials destined for landfill disposal, such as cement mixtures regenerated from
masonry rubble.
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Plants and facilities for civil works
production
5. Precast plants
Precast concrete parts: viaduct slabs, double walls, slabs and walls, faade elements, noise barrier walls, prefabricated cells, concrete sleepers.
These plants can be located nearby major structures.