TBM "BERTHA" Date: DAILY PRODUCTION REPORT - E.P.B. SR-99 TUNNEL PROJECT Total Tunnel Length 9,273 Cut and coverLength PRODUCTION (minutes) 138 Finished (Yes / Not) Feet bored today 32.4 204+00.19 Feet bored from beginning 982.6 STA end 204+32.63 Feet remaining to be bored 8,290.4 TBM Average Parameters Pressure Bar Ring # Ring assembly #Rings / day 9,273 6 STA initial NA Tunnel Length with TBM Boring Total Thrust (KN) CHD Thrust (KN) Wednesday, December 04, 2013 Torque kN-m Crown #1 Pressure Bar Above Spring Line Left #9 Others injections Pressure Bar Below Spring Line Right #3 Pressure Bar Invert #6 Velocity (mm/min) CHD Rotation Speed (rpm) Backfill Injection 1.90 Active Pressure Value at Start of Day (Bar) Weight of excavated material Total Stops ( minutes ) Type of Stops Penetratio Type of Soil Agent n mm/rev Type of soil FER FIR Type of Material Volume (m3) Bi-component Volume m3 Bi-component Pressure Bar Theoretical Tns Scale #1 Tns Scale #2 Tns Scanner #1 Scanner #2 Total Stops 1 2 3 4 5 6 7 8 9 Total Time 10 45 YES 130,412 78,295 20,247 2.3 3.8 4.3 5.0 34 1.1 31 SLF 127 + P1 Silty Sands 11 50% Bent 0.5 26.2 2.9 934 788 - - 139 90 60 YES 137,714 78,568 20,427 2.2 3.5 4.1 4.8 28 1.1 25 SLF 127 + P1 Silty Sands 11 50% Bent 2.0 25.9 3.2 850 830 - - 570 570 140 85 40 YES 140,102 80,990 21,153 2.3 3.8 4.1 5.0 28 1.0 28 SLF 127 + P1 Silty Sands 11 50% Bent 1.6 25.9 3.1 941 966 - - 141 90 65 YES 139,105 80,287 18,721 2.3 3.7 4.3 5.0 26 0.9 29 SLF 127 + P1 Sandy Silt 11 50% Bent 1.1 25.9 3.2 909 939 - - 20 142 90 45 YES 135,608 78,689 17,776 2.3 3.8 4.3 5.1 27 1.0 27 SLF 127 + P1 Sandy Silt 11 50% Bent 2.5 25.8 3.3 917 949 - - 0 135 143 115 40 YES 139,618 82,310 18,387 2.0 3.5 4.1 4.9 24 0.9 27 SLF 127 + P1 Sandy Silt 11 50% Bent 5.4 26.0 2.5 919 947 - - 70 225 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 70 165 145 0 10 615 15 15 155 0 470 295 1 2 3 4 0 5,470 Stop description Clear the screw of steel projectiles and boulders 5 6 7 8 Cleaning grout ports Switch conveyor to barge Secondary grout injection Switch conveyor to muck pit 5,418 0 570 15 10 10 70 0 0 0 0 0 0 675 1,440 9 10 11 12 SHIFTS Day # Cutting teeth: # Disc Cutter Notes: TBM Inclination: Front Rear Rolling Front Rear TBM Inclination: Front Rear Rolling Front Rear TBM Inclination: Front Rear Rolling Horizontal Deviation Front Rear Front Rear Horizontal Deviation Front Rear Horizontal Deviation Front Rear Vertical Deviation Front Rear Vertical Deviation Front Rear Vertical Deviation Front Rear Swing # Cutting teeth: # Disc Cutter Notes: -0.38 -0.31 7 31 6 -5 Swing # Cutting teeth: # Disc Cutter Notes: Overburden: Construction Manager Juan Luis Magro Completed by: Peter Wang Date of completion: 12/5/2013 Notes: Others injections means "bentonite thru the shield" in oder to presurize the gap shield-ground. Scale #2 was re-calibrated after ring #139 Tunnel Superintendent Modified By: Date of Modification: Jorge Vazquez Situation of Production Report: Approved by: Date of approval: 50