BOREHOLE MATERIAL SYMBOLS: 210 EEB NO. 6 (STA 17+660) 205 205 200 103 O/S 11.5 m T407-005 T407-007 O/S -14.5 m O/S -12.4 m SAW-CN-002 O/S 14.6 m 200 102 T407-008 O/S 8.4 m O/S 14.5 m 195 2 N Value 2 35 11 7 09/11/07 11 1 N Value 27 20 17 FILL 1 N Value 25 9 8 11 21 16 28 17 23 31 23 23 26 29 35 38 11 09/11/07 1 10 17 18 185 4 SAND AND GRAVEL/ GRAVELLY SAND 1 FILL 5 SAND 10 2 ORGANICS 6 SILTY SAND 11 SILTY CLAY TILL / CLAYEY SILT TILL 3 GRAVEL 7 SANDY SILT/ SAND AND SILT 12 SANDY SILT/SILTY SAND/ SAND AND SILT TILL 8 SILT SAW-CN-001 O/S 7.4 m T407-009 407-007 O/S 34.4 m O/S -17.0 m 190 HYDROEXCAVATION (I.E. DAYLIGHTING) CARRIED OUT SURFICIAL MATERIAL NOT KNOWN 210 11 80 11 50/0.13 180 80/0.28 50/0.13 50/0.15 50/0.15 94/0.25 50/0.15 50/0.08 37 11 18 8 17 31 33 11 12 1 2 1 19 17 14 25 82 / 275 mm 11 50 / 150 mm 11 11 24 31 12 9 42 93 / 250 mm 50 / 150 mm 66 10 11 10 175 44 9 80 11 38 53 31 39 20 10 170 42 77 July 9, 2009 43 9 51 85 July 9, 2009 51 38 165 31 26 49 85/0.28 28 4. THIS DRAWING IS PREPARED FOR PRELIMINARY DESIGN PURPOSES ONLY. IT IS NOT A BASELINE FOR CONSTRUCTION CONTRACT TENDERING PURPOSE. 36 90 / 280 mm 58 10 80 50 / 150 mm 42 50 180 50 / 125 mm PROPOSED TOP OF RAIL 50 / 110 mm 50 / 110 mm 54 79 10 55 05/21/09 31 31 41 50 / 150 mm, initial 22 50 / 140 mm 5. BOREHOLE WIDTH IN PROFILE IS NOT TO SCALE. REFERENCES: 1. BASE PLAN AND ALIGNMENT PROVIDED IN DIGITAL FORMAT BY TORONTO TRANSIT COMMISSION, RECEIVED ON JULY 10, 2009. THE PROFILES ARE APPROXIMATE AND ARE SHOWN FOR ILLUSTRATION PURPOSES ONLY. GENERAL LEGEND: INTERPRETED MAJOR DEPOSIT BOUNDARY 175 INTERPRETED PIEZOMETRIC LEVEL 20 78 BH BOREHOLE LABEL O/S 8.5 m OFFSET FROM CENTRE LINE OF TWIN TUNNELS 26 PROPOSED TUNNEL INVERT 50 TILL 10 24 93 / 265 mm WATER LEVEL IN SINGLE OR SHALLOW MONITORING WELL 170 1 12 54 41 48 04/16/09 50 24 5 165 WATER LEVEL DATE 30 04/16/09 11 31 25 N Value 76 'N' VALUE 104 85/0.28 BOREHOLE STRATA SYMBOL 59 WATER LEVEL IN DEEP MONITORING WELL 62 58 6 PIEZOMETER 22 10 28 10 185 3. THIS INTERPRETED STRATIGRAPHY DRAWING IS A SIMPLIFICATION OF SUBSURFACE CONDITIONS. DETAILED DESCRIPTIONS OG THE CONDITIONS ENCOUNTERED AT THE BOREHOLE LOCATION ARE FOUND ON THE RECORDS OF BOREHOLES CONTAINED IN THE GEOTECHNICAL INVESTIGATION REPORTS LISTED IN SECTION 3 OF THE INITIAL GEO-ENGINEERING DESIGN REPORT NO. 08-1111-0039 (2360), DATED JUNE 2009. 25 82 70 92 / 260 mm 26 29 NOTES: 1. THIS DRAWING SHOULD BE READ IN CONJUNCTION WITH THE REPORT TITLED "INITIAL GEO-ENGINEERING DESIGN, TORONTO-YORK SPADINA SUBWAY EXTENSION", DATED SEPTEMBER 2009. 48 64 38 4 50 / 75 mm PROPOSED TUNNEL OBVERT 54 28 12 10 8 8 31 73 63 50 / 100 mm N Value 40 37 78 / 125 mm 49 1 50 / 75 mm 28 43 28 11 22 28 36 10 10 92 28 18 49 75/0.15 148 27 50 / 150 mm, initial July 9, 2009 97 50 / 150 mm 94 / 280 mm 2 1 1 CLAY/SILTY CLAY 190 N Value 37 12 6 14 26 50 / 150 mm 81 91 50 / 150 mm 67 1 FILL 37 90 134 50 / 125 mm July 9, 2009 8 17 18 50 / 150 mm 50 / 125 mm 82 2 N Value 76 90 / 280 mm 50 / 125 mm 62 80 60/0.13 1 11 CLAYEY SILT 2. THE CHARACTERISTICS AND VARIABILITY ANTICIPATED WITHIN THE MAJOR SOIL DEPOSITS ARE DESCRIBED IN THE TEXT OF THIS REPORT. SIGNIFICANT LAYERS, INTERLAYERS AND LENSES WITHIN THE MAJOR DEPOSITS ILLUSTRATED FROM INTERPRETATION OF THE BOREHOLE RECORDS. THE BOUNDARIES ILLUSTRATED ARE INTENDED TO HIGHLIGHT THE VARIABILITY WITHIN THE DEPOSITS, WHICH EXHIBIT GRADUAL TRANSITIONS FROM ONE SOIL TYPE TO ANOTHER. IN ADDITION, LENSES AND INTERLAYERS NOT DETECTED BY THE SUBSURFACE INVESTIGATION WILL BE PRESENT BETWEEN BOREHOLES. 195 56 97 60/0.13 18 11 7 24 20 24 25 53 50/0.15 N Value 10 10 18 24 38 48 N Value 30 July 9, 2009 99 12 N Value 9 BOREHOLE MATERIAL SYMBOL 58 56 84 29 5 0 5 10 10 METRES 20 58 28 160 160 38 7 50 / 50 mm SCALE VERTICAL 1:250 10 0 METRES SCALE HORIZONTAL 1:500 50 / 75 mm PROJECT 155 155 INITIAL GEO-ENGINEERING DESIGN TORONTO YORK SPADINA SUBWAY EXTENTION CONTRACT NO. A85-77 TITLE 17+600 17+700 17+800 17+900 DRAFT INTERPRETED STRATIGRAPHIC PROFILE A-A' STA 17+550 TO STA 17+974 PROJECT No. 08-1111-0039 DESIGN Mississauga, Ontario, Canada FILE No. 0811110039BAA002.dwg SCALE CAD DD/RJ Nov. 24, 2009 CHECK SLP Nov. 24, 2009 REVIEW JW Nov. 24, 2009 AS SHOWN FIGURE No. 2 VER. A