Highway General Excavation Works Earthworks Designs Elefsina Korinthos Patras Pyrgos - Tsakona Motorway, Concession Project Central & Southern Greece

Transcript

1 Μόνιμα προεντεταμένα αγκύρια μήκ ους, αριθμού τενόντων και φορτίου προέντασης ως σχετικό πίνακα. Εναλλάξ εφαρμογή κλίσης αγκυρίων 5 και 10, σε κάνναβο 4.0m x 2. 0m (ύψος x μήκος) P erm anent pre-stressed anchors with length, number of strands and prestressed load according to the relevant table. V ari ati on of anchor i ncl i nation from 5 to 10, every successi ve pre-stressed anchor, i n grid 4.0m x 2. 0 m (h ei gh t x length) Μόνιμα αγκ ύρι α ολόσ ωμης πάκτωσης, με τσιμεντένεμα σε όλο το μήκος τους, φέρουσας εφελκυστικής ικανότητας 250kN, B500c, Ø28, από γαλβανισμένο χάλυβα, μήκ ους 12.00m, σε διάτρημα Ø3', σε πεσσοειδή κάνναβο 2.0m x 2. 0m, με κατωφερική κλίση 10 Permanent soi l nai l s f ul l y grouted, tensile bearing capacity 250kN, B500c, Ø28, from gal vani sed steel, 12.00m length, in drill hole Ø3', in staggered grid 2.0m x 2. 0m, at downward i nclination 10 5 ή/or 10 Αγκύρωση μεταλλι κού πλέγματος Anchoring of the steel wire mesh net 8.00 Τοπική εφαρμογή μόνι μων περιφραγματικών αποστραγγιστικών οπών μήκους 6.0m, ον ομασ τικής δι αμέ τρου 3', σε κάνναβο 2.0mx4.0m (ύψος x μήκος), με ελάχιστη ανωφε ρική κλίση 6, εάν απαιτείται Local application of permanent double wall screen drainage holes, 6. 0m l ong, nom i nal di am et er 3'', i n a 2.0mx4.0m (height x length) pattern, wi th 6 mi nim um upward inclination, if required Α A ή/or 10 Μόνιμα προεντεταμένα αγκύρια μήκ ους, αριθμού τενόντων και φορτίου προέ ντασ ης ως σχετικό πίνακα. Εναλλάξ εφαρμογή κλίσης αγκυρίων 5 και 10, σε κάνναβο 4.0 m x 2.0m (ύψος x μήκος) Permanent pre-stressed anchors with length, number of st rands and prestressed l oad accordi ng to the relevant table. Variation of anchor i ncl ination from 5 to 10, every successi ve pre-stressed anchor, i n grid 4.0 m x 2.0m (hei ght x length) Υφιστάμενο φυσικό ανάγλυφο Existing ground level Περίφραξη Fencing Αποστραγγιστική τριγωνική τάφρος T ri angul ar drainage ditch Αγκύρωση μεταλλι κού πλέγματος Anchoring of the steel wire mesh net Αγκύρωση μεταλλι κού πλέγματος με αγκύρια ολόσωμης πάκτωσης, με τσ ι με ντέ ν ε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ικανότητας 200kN, B500c, Ø25, απ ό γαλβανισμένο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3', σε πεσσοειδή κάνναβο 2.5m x 2. 5m, με κατωφ ερική κλίση 10 Anchorage of the steel wire mesh net with soil nails fully grouted, tensile bearing capacity 200kN, B500c, Ø25, from galvanised steel, 3.00m length, in dri ll hol e Ø3 '', i n staggered grid 2.5m x 2. 5m, at downward i nclination 10 2: Αγκύρωσ η με ταλ λι κού πλέγματος Anchoring of the steel wire mesh net M εταλλικό πλέγμα τύπου Galfan 8/2.4 ή αναλόγου S t e el wi r e mesh net Ga l fan 8/2.4 type or equivalent 10 Αύλακα απ οσ τράγγ ι σ ης αναβαθμού Bench drainage trench Τοπική εφαρμογή μόνι μων περιφραγματικών αποστραγγιστικών οπών μήκους 6. 0m, ονομαστικής διαμέτρου 3', σε κάνναβο 2.0mx4.0m (ύψος x μήκος), με ελάχιστη ανωφε ρική κλίση 6, εάν απαιτείται Local appl icat i on of perm anent double wall screen drainage holes, 6. 0m l ong, nom i nal di am et er 3'', in a 2.0mx4.0m (height x length) pattern, with 6 m inimum upward inclination, if required 2: Αποσ τραγγισ τική τριγωνική τάφρος T riangular drainage ditch Τοπική εφαρμογή μόνι μων περιφραγματικών απόστραγγιστικών οπών μήκους 8. 0m, ονομασ τι κής διαμέτρου 3'', σε κάνναβο 4.00mx4.00m, με αν ωφ ε ρι κ ή κλίση 10, με δύο απ όσ τραγγιστικούς σωλήνες από PVC (π.χ. δι πλοί σωλήνες D URVINIL), εάν απαιτεί ται Local appl i cati on of perm anent doubl e wall screen drainage holes, 8.0m l ong, nom i nal di ameter 3', in grid 4.00mx 4. 00m, wit h 10 mi ni mum upward inclination, consisting of two concentric drainage PVC pipes (e.g. DURVINIL doubl e wal l screen), if required Εφαρμογή εύκαμπτου τρι σ δι άσ τατου γεώπλεγματος ενισχυμένο με διπλής περιέλιξης, ατσ άλι νο πλέγμα με βαρύ γαλβάνισμα (τύπου Gal fan), με ελάχιστη διάμμετρο 2.7mm, τύπ ου 8x10 (ελάχιστο άνοι γμα καννάβου D=8cm ), ελάχιστης εφελκυστικής αντοχής 45kN/m, ή γεωσύνθετου πλέγματος τύπου M A CMAT R (R1 8127GN) ή αντίστοιχο Appl i cati on of rei nforced Geomat, wi th doubl e t wisted, woven steel wire mesh with Galfan coating, wire diameter 2.7mm or more, type 8x10 (minimum mesh opening D=8cm), of mi ni m um tensi l e strength 45kN/m, or st eel reinforced geomat type MACMAT R (R1 8127GN) or equivalent 7.44 Τοπική εφαρμογή μόν ι μων περιφραγματικών απόστραγγιστικών οπών μήκ ους 8.0m, ονομασ τι κής δι αμέτρου 3'', σε κάνναβο 4.00mx4.00m, με ανωφε ρι κή κλί ση 10, με δύο απ ό σ τραγγιστικούς σωλήνες από PVC (π. χ. διπλοί σ ωλήνες DU RVINIL), εάν απαιτείται Local appl ication of permanent double wall screen drainage holes, 8.0m l ong, nomi nal di am eter 3', in grid 4. 00mx4.00m, with 10 mi ni mum upward i ncl i nati on, consi sti ng of two concentric drainage PVC pipes (e.g. DURV INI L doubl e wal l screen), if required Εκτοξευόμενο σκυρόδεμα γι α την πλήρωση των κοι λοτήτων που δημι ουργούν ται από υπερεσκαφές ή από τοπι κέ ς αστοχίες (εάν απαιτείται) Gunite for the filling of cavities formed by ov erexc av at i ons or l oc al f ailures (if required) M εταλλικό πλέγμα τύπου Galfan 8/ 2.4 ή αν αλόγου S t eel w i re mesh net Gal fan 8/ 2.4 ty pe or equivalent Αύλακα απ οσ τράγ γ ι σ ης αναβαθμού Benc h drai nage trench : Αγκύρωση με ταλλ ι κού πλέγματος Anchori ng of the s teel wire mesh net Αγκύρωση με ταλ λι κ ού πλέγματος με αγ κ ύρια ολόσωμης πάκτωσης, με τσ ι μεντέ νε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ικανότητας 200kN, B500c, Ø25, από γαλβανισμένο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3', σε πεσσοειδή κάνναβο 2.5m x 2.5m, με κατωφερική κλίση 10 Anchorage of the steel wire mesh net with soil nails fully grouted, tensile bearing capacity 200kN, B500c, Ø25, from galvanised steel, 3.00m length, in drill hole Ø3'', in staggered grid 2.5m x 2.5m, at downward inclination M εταλλικό πλέγμα τύπου Galfan 8/ 2. 4 ή αν αλόγου S teel wi re mesh net Gal fan 8/2.4 type or equivalent 2:1 2:1 Δοκός από οπλι σ μένο σκυρόδεμα C 30/37 για τη σύνδεση των π ροε ν τεταμένων αγκυρίων (Βλέπε σχέδιο Λε πτομερει ών 1OK F01323A- ) Rei nforced concrete beam C 30/37 for the connection of t he pre-stressed anchors (See drawi ng of details 1OK F 01323A-) 1.50 Αύλακα αποστράγγι σης αναβαθμού Bench drainage trench Τοπική εφαρμογή μόνι μων περιφραγματικών αποστραγγιστικών οπών μήκους 6.0m, ονομαστικής διαμέτρου 3', σε κάνναβο 2.0mx4.0m (ύψος x μήκος), με ελάχιστη ανωφε ρική κλίση 6, εάν απαιτείται Local application of permanent double wall screen drainage holes, 6.0m long, nom inal diameter 3'', in a 2.0mx4.0m (height x length) pat tern, wi th 6 m i ni m um upward inclination, if required Αύλακα αποσ τράγγι σ ης αναβαθμού B ench drai nage trench Μόνιμα προεντεταμένα αγκ ύρι α μήκους, αριθμού τενόντων και φορτίου προέντασης ως σχετικό πίνακα. Εναλλάξ εφαρμογή κλί σης αγκυρίων 5 και 10 Perm anent pre-stressed anchors with length, number of strands and prestressed l oad accordi ng to the relevant table. Vari ati on of anchor i ncl i nation from 5 to 10, every successive pre-stressed anchor M εταλλικό πλέγμα τύπου Galfan 8/2.4 ή αν αλόγου S t eel w i re mesh net Gal fan 8/ 2.4 ty pe or equivalent Αύλακα αποσ τράγγι σης αναβαθμού Bench drainage trench Αγκύρωση μεταλλικού πλέγματος Anchoring of the steel wire mesh net Αγκύρωση με ταλ λι κού πλέγματος με αγ κύρια ολόσωμης πάκτωσης, με τσ ι μεντέ νε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ικανότητας 200kN, B500c, Ø25, από γαλβανισμένο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3', σε πεσσοειδή κάνναβο 2.5m x 2.5m, με κατωφερική κλίση 10 Anchorage of the steel wire mesh net with soil nails fully grouted, tensile bearing capacity 200kN, B500c, Ø25, from galvanised steel, 3.00m length, in drill hole Ø3'', in staggered grid 2.5m x 2.5m, at downward inclination 10 3: Αγκύρωση με ταλλ ι κού πλέγματος Anchori ng of the steel wire mesh net Εφαρμογή εύκαμπτου τρι σ δι άσ τατου γεώπλεγματος ενισχυμένο με διπλής περιέλιξης, ατσάλινο πλέγμα με βαρύ γαλβάνισμα (τύπ ου Gal fan), με ελάχιστη διάμμετρο 2.7mm, τύπου 8x10 (ελάχιστο άνοι γμα καννάβου D=8cm), ελάχιστης εφελκυστικής αντοχής 45kN/m, ή γεωσύνθετου πλέγματος τύπου M A CMAT R (R1 8127GN) ή αντίστοιχο A ppl i cati on of rei nf orced Geom at, wi t h doubl e twisted, woven steel wire mesh with Galfan coating, wire di ameter 2.7mm or more, type 8x10 (minimum mesh opening D=8cm), of m i ni mum tensi l e strength 45kN/m, or steel reinforced geomat type MACMAT R (R1 8127GN) or equivalent : M εταλλικό πλέγμα τύπου Galfan 8/ 2. 4 ή αν αλόγου Steel wire mesh net Galfan 8/ 2.4 t y pe or equivalent 3: Αύλακα απ οσ τράγγ ι σ ης αναβαθμού Benc h drai nage trench Αύλακα αποσ τράγγισ ης αναβαθμού B ench drai nage trench Αγκύρωση με ταλ λι κού πλέγματος A nchori ng of the steel wire mesh net Μόνιμα αγ κύρι α ολόσ ωμης πάκτωσης, με τσιμεντένεμα σε όλο το μήκος τους, φέρουσας εφελκυστικής ικανότητας 250kN, B500c, Ø28, από γαλβανισμένο χάλυβα, μήκους 12.00m, σε διάτρημα Ø3', σε πεσσοειδή κάνναβο 2. 0m x 2. 0m, με κατωφερική κλίση 10 Permanent soil nails fully grouted, tensile bearing capacity 250kN, B500c, Ø28, from gal vani sed steel, 12.00m length, in drill hole Ø3', in staggered grid 2.0m x 2. 0m, at downward i nclination "Βλέπε παρατήρηση No 19" "See remark No 19" ΚΛ./SC : 1: Τα χαρακτηριστικά της στρώσης έδρασης οδοσ τρωσ ί ας θα καθοριστούν από τη σχετική Μελέτη Οδοστρωμάτων T he charac t eri st i cs of the pavement bedding layer will be determined by the relevant Pavement Design : Ενδεικτική διαμόρφωση οδοποιίας Indicative roadway configuration Τοίχος αν αχαί τι σ ης καταπτώσεων Rock slides intercepting walls Highway General Excavation Works Earthworks Designs Elefsina Korinthos Patras Pyrgos - Tsakona Motorway, Concession Central & Southern Greece Final Geotechnical earthwork Designs in the Korinthos Patras stretch from C.P. 20 up to C.P. 80 (Cuts & Embankments) Total project s cost: approx. 180 m. Schedule Design: Construction: Description Total length of Excavation Works Cuts: 12,000m Bare or partially reinforced embankments: 23,000 m Open Cuts: Slope layout and reinforcement of open cuts Use of fully grouted permanent or prestressed anchors Slopes with gradient 2:3~ 3:1 Maximum slope height: 12m Maximum total cut height: 65m Cross Section of open cut with prestressed anchors and fully bonded permanent anchors Embankments: Soil fill material Bare or partially reinforced embankments with geogrids due to seismic design Modulation Geometry: one or double sided Slopes with gradient 2:3 Deck Width: 30m - 50m Maximum Height: 14m Pliocene and Plio-pleistocene Marls, Conglomerates, Alternations of Marl-Conglomerates, Alluvial Deposits, Weathered slope materials, Sands, Gravels, Clay-Silts, Limestones Geotechnical interpretation and design parameter assessment Geotechnical parameters optimization with slope stability back analysis Stability evaluation with specialized software Appropriate Geogrid application according to fill material characteristics Check and dimensioning of prestressed anchors according to EC7 Assessment and determination of the seismic load according to the area s geotechnical profile Application of geocomposites for hydraulic erosion control as well as rock barrier rock fall systems Final Detailed Design s OLYMPIA JOINT VENTURE (HOCHTIEF Construction AG AKTOR S.A.) AKTOR S.A Cross section of high open cut with appropriate slope protection with anchored wire mesh Cross section of partially reinforced embankment due to seismic design ΑΞΟΝΑΣ ΑΥΤ/ΔΡΟΜΟΥ AXIS MOTORWAY

2 Existing Rock trap wall Υφιστάμενος τοίχος βραχοπαγίδας Indicative positions of anchors (where required acc ording to the in situ conditions) Ενδεικτικές θέσεις αγ κυρίων (όπου απαιτείται από τις επί τόπου συνθήκες ) Existing Terrain Υφιστάμενο φυσικό ανάγλυφο Permanent f ully grouted spot rock bolts with antioxidant protection coating Φ25, S500 length 4.00m, bearing capacity 2 00kN Μόνιμες σποραδικές ηλώσεις βράχου Φ 25, S500 πλήρους ενεμάτωσης με αντιοξειδωτική προστασία, μήκους 4.00m, φέρουσας ι κ ανότητας 200kN Indicative positions of anchors (where required according to the in situ conditions) Ενδεικτικές θέσεις αγ κυρίων (όπου απαιτείται από τις επί τόπου συνθήκες ) Terrain Φυσικό αν άγ λυφο Slopes, Cuts and Embankments Slope Stability Audit of existing highway cuts and embankments Elefsina Korinthos Patras Pyrgos Tsakona Motorway, Concession project Southern Greece Detailed design of slope repair and remedial works for the existing embankments and cuts of Elefsina Korinthos Patras Pyrgos Tsakona Motorway s Total Costs: approx. ~5 m Schedule Design: 2008 Construction: Description Rehabilitation of existing cuts and embankments Left branch Αριστερός κλάδος Right branch Δεξιός κλάδος Limestones, marly limestones, conglomerates and artificial embankment bodies Indicative cross section with the appropriate repair and remedial measures Final Geotechnical Detailed Design Identification and registration of all problems and hazards Geological mapping and assessment of the geotechnical parameters Stability analysis to determine the potential failures and to work on the protection measures Determination of all necessary protection and rehabilitation measures (installation of rock fall barriers, slope support) Construction Drawings Bill of quantities - Budget Scaling with the use of light mechanical means Installation of rockfall barriers Installation of slope protection measures Application of permanent rock bolts Installation of 3-D protection geogrid Application of hydroseeding Rehabilitation of damaged drainage culvert Construction of drainage ditch at the top of existing retaining wall Construction of support walls View of an existing cut APION KLEOS Construction JV (VINCI CONSTRUCTION GRANDS PROJETS S.A.S. - HOCHTIEF Construction AG - J&P-AVAX S.A. - ATHENA S.A. AKTOR S.A. GEK/TERNA S.A.)

3 Highway Cut Slopes Rockfall Protection Design ATHINEO LEFKTRO (RAPSOMATI) TRIPOLI KALAMATA ROADWAY Southern Greece Rockfall Protection Design at Athineo Lefktro section (Rapsomati area) of the Tripoli Kalamata road axis (Peloponnese) Total Cost: approx. 0.5 m. Schedule Design: 2008 Construction: 2009 Description Assessment of the cut slope stability and determination of the necessary support and rockfall protection measures Length: 450m Typical cross section with installation of rockfall barrier Rocky slopes of medium inclination with height up to 50m Thin to medium bedded Limestones Final Geotechnical Detailed Design Identification and evaluation of the potential slope failure mechanisms elaboration of detailed stability audit Execution of stability analysis (rockfalls) Determination of the necessary support - stabilization measures Detailed dimensioning of the mitigation systems, technical specifications and construction method statement Elaboration of technical report, construction drawings and bill of quantities (BOQ) Consulting services during on site application Designs carried out by OMIKRON KAPPA CONSULTING S.A. and INGENIEURBURO EDR GmbH, Munich General view of the design area Installation of approx. 400m of rockfall protection barriers MINISTRY OF E.PP.PW. - GENERAL SECRETARIAT OF PUBLIC WORKS, GENERAL DEPARTMENT OF TRANSPORTATION WORKS Rockfall protection area

4 Highway Cut Slopes DUBAI FUJAIRAH FREEWAY Slope Stability Audit - Slope Stabilization and Rockfall Protection Design United Arab Emirates Slope stabilization and rockfall protection design at the Dubai-Fujairah Freeway. Geotechnical evaluation and determination of the required preventative and protective measures, as well as repair and remedial works Total Cost: approx. 300 m AED Schedule Design: Construction: Description Assessment of the cut slope stability and determination of the necessary slope stabilization works and rockfall protection measures Design Length: 22.0 km Existing rocky cut slopes Geomorphology - Mountainous terrain with steep rocky slopes of significant height (exceeding 50m up to 110m) Ophiolite complex (gabbros, basalts, dunites, peridotites, serpentinites, breccia). Technical advisor - consultant services and special expertise in geotechnical engineering and rock-soil mechanics Geotechnical Design Identification of the encountered geotechnical problems and evaluation of the potential slope failure mechanisms elaboration of detailed stability audit Execution of stability analysis (planar, wedge, rockfalls, composite failures) Determination of the necessary support - stabilization measures Detailed dimensioning of the mitigation systems, technical specifications and construction method statement Elaboration of technical report, construction drawings and bill of quantities (BOQ) On site technical expertise and consulting services Inspection, monitoring and maintenance plan Installation of rockfall protection barrier Cut slope re-profile Scaling works Reinforced concrete, shotcrete, anchored buttress Pre-stressed anchors Rockfall barriers (low, medium, high energy absorption capacity) Slope surface stabilization systems (anchored wire mesh, spider net) UAE - Ministry of Public Works, Al Ahmadiah Aktor Indicative typical cross section with slope protection measures

5 Highway Cut Slopes TEMPI VALLEY - Slope Stabilization and Rockfall Protection Final Design PATHE SECTION MALIAKOS KLEIDI MOTORWAY, CONCESSION PROJECT Central Greece Slope Stabilization and Rockfall Protection Final Design at Tempi Valley (National Roadway of Athens Thessaloniki) Total Cost: approx. 3m. Schedule Design: Construction: Description Assessment of the cut slope stability and determination of the necessary slope stabilization works and rockfall protection measures Length: 5.0km Geomorphology - Mountainous terrain, very steep rocky slopes of significant height up to 150m Thick to medium bedded crystalline limestones, Phyllites, soil like formations (limestone boulders, scree debris materials) Installation of rockfall protection barriers Final Geotechnical Detailed Design Identification and evaluation of the potential slope failure mechanisms elaboration of detailed stability audit Execution of stability analysis (rockfalls, planar failure, rock wedge formation, toppling, circular slip failure) Determination of the necessary support - stabilization measures Detailed dimensioning of the mitigation systems, technical specifications and construction method statement Elaboration of technical report, construction drawings and bill of quantities (BOQ) Consulting services during on site application Scaling works performed manually or/and with the use of mechanical means Installation of approx. 1,900m of rockfall protection barriers Installation of approx. 5,500m 2 slope stabilization systems (fully anchored Tecco type mesh, Spider type net) Application of approx. 1,350m of permanent, fully grouted rock bolts Rehabilitation of the existing fences and the drainage ditches MALIAKOS KLEIDI CONSTRUCTION J/V (HOCHTIEF AKTOR J& P AVAX VINCI CGP AEGEK ATHENA) Application of slope stabilization systems

6 Highway Cut Slopes PANTELEIMONAS AREA (PLATAMONAS) PATHE SECTION MALIAKOS KLEIDI MOTORWAY, CONCESSION PROJECT Slope Stabilization and Rockfall Protection Final Design Central Greece Slope Stabilization and Rockfall Protection Final Design at Panteleimonas area (Platamomas) of the National Roadway Athens Thessaloniki Total Cost: approx. 0.5 m. Schedule Design: 2008 Construction: 2010 Description Assessment of the cut slope stability and determination of the necessary stabilization works and rockfall protection measures Length: 2.5km Geomorphology - Steep rocky slopes of average height 10-20m Crystalline Limestones, soil formations (limestone boulders, scree materials) Typical cross section with installation of rockfall barrier and mesh Final Geotechnical Detailed Design Identification and evaluation of the potential slope failure mechanisms elaboration of detailed stability audit Execution of stability analysis (rockfalls, wedge failure) Determination of the necessary support and stabilization measures Detailed dimensioning of the mitigation systems, technical specifications and construction method statement Elaboration of technical report, construction drawings and bill of quantities (BOQ) Consulting services during on site application Scaling works performed manually or/and with the use of mechanical means Installation of approx. 100m of rockfall protection barriers Installation of approx. 2,500m 2 slope stabilization systems (fully anchored Tecco type mesh, drape, Spider type net) MALIAKOS KLEIDI CONSTRUCTION JV (HOCHTIEF - AKTOR J&P AVAX VINCI CGP AEGEK ATHENA) Application of slope stabilization systems

7 Highway General Excavation Works Highway Excavation Works PATHE SECTION, Maliakos Kleidi Motorway, Concession Central Greece Highway Excavation works for Maliakos Kleidi Motorway GU 10 ~ 14, GU 16 ~ 19, GU 24 ~ 25 Total Cost: approx. ~600 m. Schedule Design: Construction: Description Total Length of Excavation Works: GU 10 ~ 14: 5,350m GU 16 ~ 19: 6,050m GU 24 ~ 25: 17,200m 1. Embankments : soil fill or rock fill material reinforced or loose with geogrids Modulation Geometry: one or double sided Reinforced slopes with gradient 2:1 ~ 2:3 Deck Width: 30m - 50 m Maximum Height: 11m 2. Open Cuts :Modulation and Support of open cuts Slopes with gradient 2:3 Maximum Height: 10m GU 10 ~ 14: Recent disposals, Phyllites GU 16 ~ 19: Recent Disposals, ophiolithic sequence, Limestones, marbles GU 24 ~ 25: Disposals, ophiolithic sequence Geotechnical evaluation model Ground Geotechnical Interpretation Report Geotechnical Drawings of longitudinal and cross sections Final Detailed Geotechnical Design Construction Drawings 1. Embankments : Construction of drainage trenches at the foot of the slope Construction of embankments with soil fill or rock fill materials Foundation of the embankments with reinforced geogrids Construction of support walls Construction of embankments with severe gradient and gabion facing Foundation of the embankments with the use of piles 2. Open Cuts: Installation of anchors Installation of meshes Construction of support walls Typical cross section of embankment MALIAKOS KLEIDI CONSTRUCTION JV (HOCHTIEF - AKTOR J&P AVAX VINCI CGP AEGEK ATHENA)

8 Confrontation of geotechnical hazards in earthworks New National Road Agios Nikolaos Kalo Chorio Crete, Southern Greece Roadway Cuts and Embankments Construction cost Total cost: approx. 4 m. Schedule Design: 2010 Construction: 2011 Description Technical inspection of geotechnical hazards for incomplete earthworks, as well as, for earthworks to be constructed Limestones, marls formations, debris materials General view of cuts - embankments Review and technical audit of existing geotechnical designs Geotechnical evaluation of incomplete earthworks Proposal of documented technical design solutions for all the earthworks of the roadway stretch J/V AKTOR S.A. ELTER S.A. Cut s general view Indicative typical cross section with protection measures

9 Open Cuts Rapsomati Tunnel of Road Axis Tripoli - Kalamata South Greece Highway general excavation works Total cost: approx. 1,5 m. Schedule Design: 2005 Construction: Description Permanent one-sided and two-sided slopes of the u-turn road in the entrance of Rapsomati tunnel Length of Open Cut: 314m Max. Height: 25m Modulation of left open cut slopes in 1 slope with gradient 1:1 (height: width) Modulation of right open cut slopes in 2 slopes with gradient 2:1 and intermediate benches One-sided open cut slope of the open road in the area of the exit of Rapsomati tunnel Length: 60m Max. Height: 37m Slope modulation in 4 open cut slopes with gradient 2:1 with intermediate benches, 4m width View of the open cut area in the exit of Rapsomati tunnel Thin-bedded medium-bedded limestones Intercalations of clayey schists, red pelites and limestones Final geotechnical detailed design Execution of geotechnical investigation program Assessment of design geotechnical parameters Geometric project design Execution analysis of slopes stability Technical Report Bill of Quantities, budget Installation of fully grounded rockbolts in combination with reinforced connecting beams Installation of prestressed anchors on the slopes at the area of the exit of the Rapsomati tunnel Surface protection of permanent slope with GEOBRUGG grids, TECCO G65 type Construction of perimetrical drainage trenches and drainage wholes Planting of small trees Typical cross section of the open cut J/V KASTOR S.A. ELTER S.A.

10 Slopes Rehabilitation Rapsomati Tunnel of Road Axis Tripoli - Kalamata Southern Greece Rehabilitation of existing open cut slopes of the Highway Total cost: approx. 0,9 m. Schedule Design: 2005 Construction: Description Rehabilitation of failures in the slopes of open cuts in a highway section of approx. 3km length One-sided and two-sided open cuts constructed from a previous contractor with medium uniformly gradient 2:3 and fluctuant height from 1m up to 10m, which were appearing serious hydraulic mining problems, surface erosions and failures of small depth Marls of clay and consistence and sand marls Alluvial View of the open cut slopes before the rehabilitation Final geotechnical detailed design Identification and registration of the slopes problems Execution of stability back-up analyses for the assessment of the geotechnical engineering characteristics of soils Assessment of the necessary earth works interventions for the rehabilitation of failures Assessment of flood protection and anti-corrosion measures Construction drawings Bill of Quantities, budget Installation of loose material of the existing failures with granular crust material Installation of 3-D Geogrids ENKAMAT type for the anti- corrosion slopes protection Turfgrass planting over the slopes surface Planting of small trees Installation of drainage wholes at the foot of the slope Construction of drainage trenches over the slopes crown View of the open cut slopes after the rehabilitation J/V KASTOR S.A. ELTER S.A.

11 Excavation Works Metsovo Connecting Road Egnatia Highway, Section Northern Greece Highway general excavation works Total cost: approx. 1,5 m. Schedule Design: Construction: Description Permanent one-sided and two-sided slopes with support measures and retaining walls, according to the stability conditions Max. Length: 430m Max. Height: 11m - 40m Installation of rock bolts and special grids for the slope protection against corrosion Flysch formation consisting of thick bedded sandstones, siltstones and red pelites Detailed Final Geotechnical & Structural Design Design of special rockfall protection barriers Installation of prestressed anchors and special grids for the protection of the slopes against corrosion Design of retaining walls and pile walls EGNATIA ODOS S.A. Typical excavation cross section

12 Railway Excavation Works Railway Cut Design High Speed Railway Line, PATHE Axis, Kakia Skala Section Central Greece Excavation of permanent slopes for the high speed railway line Total cost: approx. 0,9 m. Schedule Design: 2002 Construction: Description Length: 100m Max. Height: 40m Modulation Geometry: 4 slopes with gradient 3:1 and intermediate benches with 4m width View of the slopes during construction Construction Method Mechanical excavation due to the vicinity with the existing railway line Brecciated limestones, in a seismically active area Steep morphology with loose limestone blocks, probably unstable Detailed Final Geotechnical Design Construction drawings Elaboration of a special excavation method in distinct phases with application of rockbolts in the ground of each excavation phase Design of rockfall barriers Protection wall and special barriers installed to prevent rockfalls and to absorb kinetic energy, for the protection of the existing Railway Line Design of prestressed anchors for the support of the permanent slopes Typical cross section ALTE S.A.

13 Excavation Works Egnatia Highway, Section Northern Greece General excavation works for the foundation of bridges Total cost: approx. 0,3 m. Schedule Design: 2002 Construction: 2002 Description Modulation of slopes of height up to 15m Blocky phyllites, sandstones and limestones Excavated slopes in the area of the foundation of G1 bridge Detailed Final Geotechnical Design of excavation and support Installation of prestressed anchors Installation of Geobrugg TECCO grids for the protection against corrosion of the slopes and to prevent loose material movement AKTOR S.A. Installation works of Geobrugg TECCO type grids

14 Road Works Earth and Structural Works Romania Central Europe Technical & earth works in a 60km road. Total cost: approx. 4 m. Schedule Design: 2005 Construction: 2005 today Description Retaining walls Pilewalls Reinforced embankments Stream bed modulations with gabions Slope support Typical cross section of a retaining wall Audit of existing designs Elaboration of construction method statements s AKTOR S.A. MOCHLOS S.A. Typical cross section of an embankment