PAUL ZICK, PE NORTH SHORE CONSTRUCTORS JV

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1 NORTH SHORE CONNECTOR TUNNELS AND STATION SHELL LIGHT RAIL PROJECT PAUL ZICK, PE NORTH SHORE CONSTRUCTORS JV

2 North Shore Connector Alignment 7300 lf Extension to existing 25 mile system 18 Contracts $435 Million

3 Funding $ 435 Million 80% 17% 3%

4 Project Location Future- to Airport North Shore Connector Light Rail Expansion 004 New Gateway Station 003 EXISTING GATEWAY STATION Existing Light Rail System

5 Project Team Owner Port Authority of Allegheny County Construction Manager TriGold Jacobs Civil HDR Kwame

6 Project Team Design Engineer DMJM Contractor North Shore Constructors JV Obayashi Corp. Trumbull Corp.

7 What we are building Two Contracts Combined Contract Value - $156,500, Time NTP Oct 2, Tunnels 1243 days Feb 26, Station / C&C 870 days Feb 18, 2009

8 Four Major Structure Types Boat Section 340 lf SOE - Steel Soldier Piles and Wood Lagging g Cut and Cover 1200 lf SOE - Cement Deep Soil Mixing i Wall (CDSM) SOE Cement Bentonite Wall (CB) Top Down Construction - Station SOE - Slurry Wall Bored Tunnel 2240 lf SOE - Precast Concrete Segmental Lining i

9 Boat Section Soldier pile and lagging Excavation 0 to 35 feet Soldier Piles and Wood Lagging Above or at the water table Deep Wells Walls and Waterproofing EXISTING SOILS

10 Boat Section - SOE - Soldier Piles & Lagging Soldier Piles and Lagging

11 Cut & Cover SOE CDSM Walls 60 +/- BACKFILL CDSM Walls Cut off ground water ROCK

12 Cut & Cover / Launch Pit CDSM Walls

13 Cut & Cover / Launch Pit - CDSM WALLS In place soils mixed with Bentonite Slurry going down Insert Steel Soldier Piles Cement Slurry mixed going up

14 CDSM SOE Drill Rock Socket

15 CDSM WALLS Temporary Bridge

16 Excavation / Mud Slab / WP/ Base Slab ROCK

17 Structural Concrete Waterproofing ROCK

18 Structural Concrete Cut and Cover

19 Backfill BACKFILL ROCK

20 Bridge to hold the Bridge Support two Bents

21 Cut & Cover Instrumentation Instruments Stain gauges Weather Tilt Meters Motorized Total Station

22 Underpinning SR-65 Drilled Pier Drilled Pier

23 Underpinning SR-65 ROCK

24 Underpinning SR-65 Drilled Pier

25 Underpinning SR-65 ROCK

26 Underpinning SR-65 ROCK

27 North Side Station Shell

28 North Shore Station - Slurry Walls SEA PARKING GARAGE Concourse

29 North Shore Station - Slurry Walls

30 North Shore Station Slurry Walls DESANDING Pi Primary Excavate Slot Panel Secondary Panel Pi Primary Panel Pi Primary Panel

31 North Side Station Slurry walls Concrete Pi Primary Panel Secondary Tremie pipe Panel Rebar Pi Primary Panel Secondary Panel Pi Primary Panel

32 Slurry Walls - Rebar Cage

33 North Side Station Top Down ROCK

34 North Side Station Pour Roof Slab Roof Slab ROCK

35 Excavate to Concourse Backfill Roof Slab CONCOURSE ROCK

36 Excavate to Concourse CONCOURSE Soldier Backfill Piles installed by building Roof Slab contractor ROCK

37 Excavate to first row of struts Backfill Roof Slab CONCOURSE ROCK

38 Station Roof Slab Excavation 60 ft 40 ft

39 Excavate to Invert Pour Base Slab Backfill Roof Slab CONCOURSE SLAB ANCHORS ROCK

40 Station Ground Anchors Ground Anchors

41 Construct Platform & Deck Backfill Roof Slab CONCOURSE ROCK

42 TBM Launch Pit - SOE CDSM WALL

43 TBM Launch Pit - SOE Tie Backs

44 Launch Pit - SOE Tie Backs TIE BACKS TBM TIE BACKS ROCK

45 Ground Improvement - Jet Grouting

46 Launch Pit - Jet Grout Jet Grout column construction Drill Down Grout bottom up

47 Launch Pit Entrance Packing Soft Eye

48 TBM Move to Launch Pit

49 TBM Move to Launch Pit 150 feet fully assembled

50 Launch Pit TBM Launch JET JET GROUT GROUT 1 3 2

51 Launch Pit Structure Work JET GROUT

52 Stanwix St. Receiving Pit Location GATEWAY II HORNE BUILDING RECEIVING PIT

53 Ground Improvement - Jet Grout Receiving Pit 75% COVERAGE 100% 100% Coverage 6 Around Tunnel

54 Ground Improvement - Jet Grout 75% HORNE BLG. Minimize Angular Distortion due to ground loss

55 Jet Grouting Stanwix Street

56 Stanwix Street Receiving Pit CB Wall

57 Bored Tunnels Tunnel Boring Machine Launch Pit NORTH SHORE TBM Tunnels 2200 lf SOUTH SHORE Receiving Pit

58 Bored Tunnel Section PRECAST SEGMENT LINING Segment Lining 20 inside diameter CAST IN PLACE INVERT

59 TBM Tunnels Slurry Pressure Balance TBM (SPBTBM) Mixed Shield (Soft Ground and Rock) Working Pressure 3 bar

60 Mining Cycle Mine 4 & Grout Mine 4 GROUT MAINTAINED GROUT MAINTAINED BEHIND SHIELD

61 Mining Cycle Install 4 Segment Ring Build 4 Ring

62 Mining Cycle Ring Complete - Mine Mine 4 GROUT MAINTAINED GROUT MAINTAINED BEHIND SHIELD

63 Segment Grouting Segments Grout Nozzle Grout

64 TBM SLURRY MIX SHIELD 22-9

65 SPTBM Mixed Shield

66 Slurry TBM 22-9 dia (6.92 m) inch twin disk cutters 20 - Scrapers Bucket lips 3 - Wear detection devices rpm Left or Right

67 Cutting Tools After first tunnel Disk Cutters Scrappers Bucket Lips

68 Rock Crusher

69 TBM Assembly Man Locks 3 Bar (45 psi) Material Lock

70 Cutter Head Drive Motors hp Total hp Variable Frequency Drive (VFD) 480 v AC rpm (l or r) Main bearing 85ft 8.5

71 TBM Rear of Middle Shield 5 Cylinders 4 Steering Groups 6 Cylinders 7 Cylinders

72 TBM Rear of Middle Shield Propel Cylinders - 24 Piston Diameter mm Rod Diameter mm Max Stroke mm Advance force kn (4,296 tn)

73 TBM Operation Excavation Chamber Working Chamber Hydrostatic and Soil Pressure Slurry In Slurry Out

74 TBM Operation Plan SLURRY IN 455 hp PUMP SLURRY OUT 2 EA hp PUMPS

75 Slurry Separation Plant Plant Capacity 1000 m 3 /hr

76 Segment Erector Hydraulic telescopic arm type 6 ranges of movement Telescope Rotation ti Travel Independent Roll & Yaw Controlled by joy stick

77 Segment Erector Thrust rams retracted 4-6

78 Segment Installation BOLT Segment Erector

79 Key Segment Installation TBM Shield

80 Key Segment Installation MOVE OUT KEY SEGMENT MOVE FORWARD

81 TBM Mining Start North Side SOUTH SHORE NORTH SHORE Equitable Resources Building Soft Ground

82 Fluvioglacial Material Gravel 40% - 57% Sand 50% - 38% Fines 10% - 5% Cobbles - up to 2

83 TBM Mining - River Crossing SOUTH SHORE NORTH SHORE Equitable Resources Building Mixed Face

84 TBM North River Wall Alluvium Fluvioglacial Claystone Siltstone

85 TBM North River Wall - Grouting Alluvium Fluvioglacial Claystone Siltstone

86 River Crossing SOUTH SHORE NORTH SHORE Equitable Resources Building Rock

87 River Crossing 25 feet ALLEGHENY RIVER 22 feet RIVER SILTS (ALLUVIAL) ) Top of Rock FLUVIOGLACIAL 10 feet SILTY SHALE (5,400 11,800 psi) COAL CLAYSTONE (200-4, psi) SILTSTONE (3,400-11, psi)

88 River Crossing SOUTH SHORE NORTH SHORE Well Horne Blg. Equitable Resources Building Jet Grout Soft Ground Mixed Face

89 TBM Guidance System VMT Total Station Operator s Display 80 mm Target

90 Precast Segments Universal Ring Six pieces + Key 4 Long 20 ID Bolted Two tapers 2-3/8 & 1-5/8

91 Segment Rebar Cages

92 Seg Plant cycle 4 rings X 2/ day

93 Segment Finishing Line Rotate Segments curve up Repair Surfaces Add Gasket Add Joint Packing Stack in reverse order of installation

94 Secondary Steam Curing 5 day Secondary Cure 8000 psi

95 Multi Purpose Vehicle (MVP)

96 Multi Purpose Vehicle (MVP)

97 Heading Segment Unloading

98 Heading Segment Unloading

99 Segment Erection

100 Tunnel Infrastructure Temporary Lighting 50,000 CFM Ventilation 2-4 water 8 Discharge Walkway

101 First Tunnel to Receiving Pit - July 10, 2008 Soft eye Fiberglass piles

102 First Tunnel to Receiving Pit - July 10, 2008 Containment Wall

103 TBM U-Turn

104 TBM U-Turn- Rotate 180 deg

105 TBM U-Turn- Rotate 180 deg

106 TBM U-Turn- Rotate 180 deg

107 TBM U-Turn- Rotate 180 deg

108 Invert Clean Up

109 Invert Placement

110 Thank You Questions?

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