intake tunnel
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Platanos & Trapeza Railway Tunnels andassociated Hydraulic Drainage TunnelAthens - Patras High Speed Railway Line, Section Kiato - EgioCentral Greece
Project Platanos Railway Tunnel Trapeza Railway Tunnel Water drainage tunnel
Construction CostTotal cost: approx. 100 m.
Project ScheduleDesign: 2007 - 2009Construction: 2007 -
Project DescriptionSection of Platanos Railway TunnelTunnels length: 500mExcavation Cross Section: 140m2
- Section of Trapeza Railway TunnelTunnel s length: 2.715mExcavation Cross Section: 140m2
- Water Drainage TunnelTunnel s length: 200mCross Section: 7m2
Method of tunnel excavationNATM Use of mechanical meansTBM (Tunnel Boring Machine) for Trapeza Tunnel pipe jacking
Final LiningReinforced concrete C30/37 and precast reinforced concretesegments
GeologyMarls, conglomerates, marine depositsMaximum overburden of Platanos Tunnel: 90mMaximum overburden of Trapeza Tunnel: 90mMaximum overburden of Water Drainage Tunnel: 30m
Our ServicesDetailed Final Geotechnical & Structural Design
Construction Details Use of forepoles and spiles Excavation in two phases Pipe jacking technique
ClientAOR S.A.
View of Trapeza tunnels entrance portal
Excavation geometry of top heading
Tunnels face Grey Marl
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Hydraulic TunnelKostarakos Hydraulic Diversion TunnelEgnatia Highway, Section 3.3 3.5.1Northern Greece
ProjectHydraulic tunnel
Construction costTotal cost: approx. 2,2 m.
Project ScheduleDesign: 2006 - 2007Construction: 2007
Project DescriptionHydraulic diversion tunnel of Kostarakos streamLength: 310mMaximum overburden: 45mEffective cross section: 19,8m2
Excavation MethodNATM Drilling & blasting and mechanical means
Final LiningReinforced concrete C20/25 in tunnels sidesGunite C25/30 in crown section
GeologyPeridotites, serpentinized peridotites, serpentinites, tectonicmelange
Our Services Final Geological Geotechnical Design Detailed Final Geotechnical & Structural Design of tunnel
and portals
Construction Details Use of forepoles and spiles Stiff temporary support by using steel sets of H type Support by use of anchors and shotcrete
Closed ring solutions
ClientAKTOR S.A.
General view of entrance portal
Peridotites seprentinized peridotites
Typical cross section of finallining
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Hydraulic TunnelHydraulic Drainage Tunnel for the stabilizationof the landslide in the Big Cut areaEgnatia Highway, Section 3.3 3.5.1Northern Greece
ProjectHydraulic tunnel
Construction costTotal cost: approx. 3 m.
Project ScheduleDesign: 2008Construction: 2008
Project DescriptionHydraulic drainage tunnel for the stabilization of the landslidein the Big Cut areaLength: 520mMaximum overburden: 100mEffective cross section: 19,8m2
Excavation MethodNATM Mechanical means
Final LiningReinforced concrete C20/25
GeologyPeridotites, serpentinized peridotites, serpentinites, tectonicmelange
Our ServicesDetailed Final Geotechnical & Structural of the tunnel andportals
Construction Details Use of steel sets of HEB type Use of anchors and shotcrete Micropiles for shotcrete shell's foundation improvement Closed ring solutions
ClientAKTOR S.A.
Hydraulic drainage tunnel entrance portal
Excavated tunnel
Cross section of excavation andprimary support
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
S1, S2, Vrachasi Hydraulic TunnelsAposelemi Water DamCrete, Southern Greece
ProjectHydraulic Tunnels for water transfer
Construction CostTotal Cost: approx. 15 m.
Project ScheduleDesign: 2007 - 2010Construction: 2008 - 2012
Project DescriptionHydraulic Tunnels for the transfer of water (S1 & S2 Tunnels)from Aposelemi Dam at the refineries and from there at SaintNikolaos (Vrachasi Tunnel)
S1 Hydraulic Tunnel length: 1,590mS2 Hydraulic Tunnel length: 2,050mVrachasi Hydraulic Tunnel length: 680m
Tunnels Effective Cross Section: 8.50m2
Excavation Method Drilling and blasting mechanical means
GeologyPhyllites, schists, limestones
Our Services Geological Geotechnical Evaluation Detailed Final Geotechnical and Structural Design
Construction details Use of spiles Final lining from shotcrete at tunnels top heading and
reinforced concrete at tunnels sidewalls
ClientAKTOR S.A.
Tunnel S1 Exit
Tunnel S1 Entrance View
Tunnel S2 Exit
Tunnel S2 Entrance
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Hydraulic WorksAposelemi Water Dam Water intake structureCrete, Southern Greece
ProjectWater intake structure final design
Construction CostTotal Construction Cost: approx. 2 m.
Project ScheduleDesign: 2008Construction: 2008
Project DescriptionWater intake structure of horse-shoe shape cross section andconnection with the swerve culvert
Cross Section: 4.50mMax. Height: 4.00mLength: 150m
GeologyWeathered phyllites, phyllites
Our Services Design and dimensioning of water intake structure Design and dimensioning of the connection between water
intake structure and diversion culvert Design and dimensioning of water intake chamber Detailed final geotechnical and structural design
ClientJ/V TOMI SA AKTOR SA
View of the water intake structure
Typical cross section of the structure
Structural analysis model
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Dams Hydraulic WorksRecharge Dams and flood protection worksNorthern EmiratesUnited Arab Emirates
ProjectUpdate of studies and designs for new recharge dams and barriers, execution ofsafety audit of existing dams, design of new recharge structures and other floodprotection works
Construction CostTotal Cost: approx. 100 m.
Project ScheduleDesign: 2011Construction: 2012 - 2015
Project Description Design and review of approx. 80 recharge and energy dissipation structures, flood
protection and water diversion works, in various locations Safety Audit of existing Ham Dam upstream of Fujairah City and Bih Dam upstream
Ras Al Khaimah City Dams catchment areas: 0.5km2 105km2
Dams reservoir volumes: 2,500m3 243,000m3
Dams crest lengths: 10m 2,800m Dams heights (wadi bed dam crest): 2.5m 18m Types of Dams: Concrete gravity dams
Embankment damsGabion drop structures
Approximately 20km of flood protection channels Erosion and slope protection works in wadies Energy dissipation and sediment retention structures Other retaining works for the protection of farms and houses in the reservoir area of
the recharge dams
GeologyGravely alluvium, sandy-gravely old wadi and terrestrial terrace deposits, igneousrocks of ophiolitic complex (harzburgites, peridotites, gabbros), metamorphic schists,cherts, limestones, claystones, siltstones
Our Services Study, review and evaluation of existing studies and designs Assessment and evaluation of historic storms in the wider Arabic Peninsula region Extensive reconnaissance of each dam site to establish suitability Hydrologic and hydraulic assessment and evaluation of each site Geological, hydrogeological and geotechnical assessment of each dam site Design of the required technical solutions, including the relevant hydrologic,
hydraulic, structural and geotechnical calculations Elaboration of Tender Documents (bill of quantities, technical specifications, overview
of construction cost) Execution of Preliminary Designs, Final Designs and construction drawings
Construction Details Concrete gravity dams with upstream and downstream slope of 1:1 (V:H) in order to
sustain the greater than hydrostatic force applied in the dams body Ogee and stair shaped spilling section for concrete dams Embankment dams with upstream slope of 1:2 (V:H) and downstream slope of 1:4
(V:H) Rock armor protection in the downstream slope of embankment dams Geomembrane in the upstream slope of embankment dams and gabion drop
structures to prevent piping Bottom outlets provided in all recharge structures
ClientConsultant HSS United Arab Emirates
View of the existing Ham Dam in Fujairah City
View of embankment dams
View of gabion drop structure
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Mining - Hydraulic TunnelKokkinolakkas Diversion TunnelMavres Petres Mine, ChalkidikiNorthern Greece
ProjectDesign of Kokkinolakkas diversion tunnel for the protection of drystacking Tailings Management Facility area, produced at MavresPetres and Olympiada underground mixed sulphide ore mines
Construction CostTotal cost: approx. 6 m.
Project ScheduleDesign: 2011Construction: 2012
Project DescriptionDiversion tunnel: 1,142m total lengthMean longitudinal inclination: 6,5%Effective cross section: 37, 2 m2
Geology Amphibolites Amphibolitic gneisses
Excavation Method Drilling & blasting mechanical meansFinal lining with reinforced concrete
Our ServicesFinal Technical design for the construction of Kokkinolakkasdiversion tunnel (according to articles No 4 and 101 of the GreekMining Regulation)
ClientHELLAS GOLD S.A.
Water isolation grouting rings
3D simulation analysis model forthe structure in tunnels entrance
portal
Typical cross section of excavation andprimary support
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Hydraulic TunnelYacambu Quibor TunnelVenezuela
ProjectHydraulic tunnel
Project ScheduleDesign: 2003Construction: 2003-2004
Project DescriptionHydraulic tunnel passing through the AndesLength: 25000m
Cross section: 30m2
Method of tunnel excavationNATM Mechanical excavation, drilling and blasting
Final LiningReinforced shotcrete
GeologySandstones, phyllites and limestonesSqueezing conditionsMax. overburden: 1200m
Our Services Detailed Final Design of final lining, in specific sections of the tunnel Designs carried out in association with Dr Evert Hoek
Construction DetailsSteel sets with sliding joints in order to confront severe squeezingproblems
ClientSISTEMA HIDRAULICO YACAMBU QUIBOR S.A.
Yacambu Quibor tunnel
View from the underground excavation face
Entrance portal
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Hydraulic TunnelOlympic Village TunnelAthens, Greece
ProjectHydraulic tunnel
Construction CostTotal cost: approx. 4 m.
Project ScheduleDesign: 2003Construction: 2003-2004
Project DescriptionHydraulic tunnel for the flood protection of the Olympic Village,application of pipe jacking techniqueTotal length: 320mCross section: 20m2
Method of tunnel excavationPipe Jacking
GeologyMarls, clays, gravels
Our Services Detailed Final Geotechnical & Structural Design of the tunnel with
pipe jacking technique Detail Final Design of construction shafts
ClientAKTOR S.A.
Breakthrough of the pipe jacking
Entrance of the pipe jacking through theconstruction shaft
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
ProjectWater supply Spillover Discharge tunnel of dam and relevant worksDam Inundation BasinDam road works
Construction CostTotal cost: approx. 5 m.
Project ScheduleDesign: 2005 - 2006Construction: 2005 - today
Project Description Water supply Spillover Discharge tunnel
Length: 1.180mEffective cross section: 14,3m2
Works of entrance and exit water supply tunnel and design of watersupply tower
Dam basin water flush- Reservoir length in the upper flood level: ~ 1.900m- Reservoir width in the upper flood level: ~ 120m- Reservoir capacity in the upper flood level: ~ 2,9m3
- Reservoir capacity in the upper storage level: ~ 2,6m3
GeologyIntercalations of schists and sandstonesThick bedded sandstonesSurface failures and creepMax. overburden of water supply tunnel: 126m
Our Services Execution and evaluation of geotechnical investigation program Design of water supply Spillover Discharge tunnel Relevant tunnel works:
- Water supply tower with valves in 4 different levels- Technical tunnel inflow- Tunnel gates placed in vertical shaft approx. 90m before the exit
portal- Vertical wall after the tunnel exit portal, for the energy diffusion- Technical basin of calmness
- Non-controlled spillover for the water outflow from the technicalbasin to the natural canal- Drinking water shaft in trench underneath the tunnel- Water supply outflow downstream the tunnel towards the control
valves house Flood wave study downstream the water supply spillover
discharge tunnel, along the new receiver Specific techno-geological study of slopes stability of inundation
basin
ClientAKTOR S.A.
Hydraulic WorkSetta Manikia DamEvoiaCentral Greece
View of dam, of spillover and of section of water flushbasin
View of dam
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4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, AthensTel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr
Financing Procedures of E.U.Flood Protection MeasuresSlovakiaCentral Europe
ProjectServices and Technical Assistance for the financing of highpriority flood protection measures from the Cohesion Fundof the European Union
Construction CostEstimated total cost: approx. 100 m.
Project ScheduleDesign: 2004 - 2005Construction: The works are under tender evaluation
Project DescriptionDesign of flood protection measures in the urban areas ofBratislava, Banska, Bystrica & Presov, in the frame of financingprocedures from E.U.
Bratislava: Design of levees and movableelements
Banska Bystrica: Design of hydraulic flood diversiontunnel and a diversion weir
Presov: Design of levees andriverbed modulation
Our Services Feasibility studies Environmental Impact Assessment Studies Elaboration of the Applications for financing from the
Cohesion Fund of the EU Tender Documents Land Permit Studies Services jointly carried out by OMIKRON KAPPA CONSULTING
& INGENIEURBURO EDR GmbH, Munich
ClientSlovak Water Management Enterprise (SVP)
View of Bratislava during the floods of 2002
View of Banska Bystrica during the floods of 1974
View of Presov during the floods of 2003