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Sydney Metro Northwest Secondary Education Book

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Sydney Metro Northwest Secondary Education Book LANDSCAPES, ROCKS AND TUNNELS: PRACTICAL CONSIDERATIONS IN TRANSPORT GEOGRAPHY FAST FACTS Key Learning Unit or lesson title and main focus questions Most appropriate level and ON THE WEB Area suggested number of lessons Web links Geography Landscapes, rocks and tunnels: Practical considerations in Stage 5 SubmissionsDOWNLOAD Report Stage 1, Chapter 2 transport geography http://www.sydneymetro.info/documents What landscapes and rock types does the railway cross, both INFO underground and over ground? i Sydney Metro Northwest Environmental Impact Statement 2, Appendix C – Geological 1–3 lessons long section (This version only includes the cross-sections, with different page orientation) http://www.sydneymetro.info/sites/default/files/29_Appendix_C_-_Geological_Long_ Section.pdf%3Fext%3D.pdf Teacher briefing Sydney Metro Northwest Environmental Impact Statement 1, Appendix A – Geological Sydney Metro Northwest Environmental Impact Statement 2, provides easily accessed long section geological data on the construction of the Sydney Metro Northwest tunnels. This activity http://www.sydneymetro.info/sites/default/files/26_Appendix_A_-_DGRs__CoA___SoC. provides Stage 5 students with the opportunity to explore the basic ideas of geotechnics and pdf%3Fext%3D.pdf some of the geological issues that need to be solved when building a tunnel. Focus questions: Sydney Metro Northwest Environmental Impact Statement 2, Project Description – Which part of Sydney Metro Northwest is underground? Operations Part 1, Chapter 6 http://www.sydneymetro.info/sites/default/files/07_Ch_6_Project_Description_-_ What rock types does it pass through? Operation_-_Part_1_of_2.pdf%3Fext%3D.pdf What technical problems might these rock types present to engineers and how will they solve these? Sydney geological map Do the above ground sections of the rail line present the same or different challenges? http://www.resources.nsw.gov.au/__data/assets/image/0005/287204/Sydney_500k.jpg and building a railway Requirements for these lessons Any topographic map of the area, or SIX Viewer Planning, designing https://six.nsw.gov.au/wps/portal Internet connected computers Three: Topic Google Earth or Google Maps Activity sheet 1 – Map of Epping-Rouse Hill Background information Graph paper. Students explore geological problems engineers have solved when planning Sydney Metro Northwest. The main rock type in this area is Hawkesbury sandstone that can be easily Key terms and vocabulary tunnelled, but may require support. Tunnels are unlike any other civil engineering structures. Geotechnics, cross-section, geological long section. In buildings or bridges the construction materials have defined and testable properties, whereas this is not the case with tunnelling. No matter how much of the ground is tested in preliminary site investigations, usually through borehole cores tested in the laboratory, only a small fraction of the tunnel construction area can be tested. Therefore, it is up to engineers to determine the relevant ground conditions and the effects of layering, fissures and discontinuities. Much of this assessment is based on geological and geographic judgment and experience. 198 TOPIC THREE: PLANNING, DESIGNING AND BUILDING A RAILWAY FASTTRACKING THE FUTURE | SECONDARY EDITION NOVEMBER 2016 199 Page 175 figure 49.pdf 1 24/08/2015 1:47 pm A passage describing the planned tunnels from the Sydney Metro Northwest Environmental Impact Statement 2 Overview CHERRYBROOK STATION 200 CUDGEGONG (CUT & COVER OR OPEN STATION) Page 175 figure 49.pdf 1 24/0 SYDNEY The tunnels would have a maximum vertical grade of 4.1% and have been designed 195 CASTLE HILL RD 190 A CASTLE HILL RD NWR-BH022 p Offset -19.15m p OLD NORTHERN RD RL 183.50mAHD R01-BH03 e Offset 36.43m with an appropriate curvature to accommodate an operating speed of 100 km per 185 n NWR-BH021 RL 179.00mAHD CASTLE HILL RD Offset -13.85m FILL / RESIDUAL SOIL / EW SHALE d RL 179.59mAHD i x R03-BH241 _ HIGHS RD 180 Offset -11.85m A RL 173.95mAHD NWR-BH020 CASTLE HILL RD hour. The vertical gradient of the tunnels is influenced by the topography, geological Offset 14.31m RL 174.59mAHD NWR-BH019 Offset 46.50m RL 172.78mAHD 175 CASTLE HILL STATION NWR-BH091 8 MULGOA LAMINITE /2015 1:43 pm Offset 31.25m constraints, presence of watercourses and the alignment has been designed to provide RL 167.62mAHD 170 (CUT & COVER) ASHFIELD CASTLE HILL SHALE CROSS OVER CAVERN sufficient clearance to existing and proposed building basement levels (for example below 165 NWR-BH023 ? Offset -55.84m REGENTVILLE SILTSTONE NWR-TP005^ Castle Hill town centre). The tunnel crown (top of the tunnel) would be located at its 160 RL 157.61mAHD 155 KELLYVILLE LAMINITE MC MULLEN AVE shallowest point approximately three metres below ground surface and at its deepest 150 MARKER BED CASTLE ST NWR-BH024 MARK Offset 8.90m ER BE MARKER BED KELLYVILLE LAMINITE R01-BH04 RL 143.13mAHD D Offset 14.06m R03-BH242 RL 142.00mAHD ROUSE HILL 145 Offset 2.62m R11-BH102 RL 140.74mAHD Offset -21.84m point approximately 58 m below ground surface. On average the tunnels would be more RL 135.40mAHD WINCHCOMBE PL MARKER BED MARKER B 140 ED NWR-BH028 R02-BH103 SILTSTONE INTERBEDS Offset -6.63m ASHFIELD Offset -14.03m RL 135.09mAHD RL 132.52mAHD SHALE 40.96 typically in the 20–25 m depth range and tunnel depth would tend to be at its shallowest SANDSTONE MEDIUM GRAINED 135 R11-BH110 Offset -14.91m R11-BH105 RL 130.60mAHD Offset -0.39m TRACK LEVEL RL 130.10mAHD 40.15 130 42 at station locations and at the northern tunnel portal. KELLYVILLE LAMINITE D BE RKER 40 MA 125 MARKER BED ROUSE HILL MARKER BED MARKER BED MARKER BED SANDSTONE 120 MARKER BED 60.35 HAWKESBURY INTERBEDDED SANDSTONE 115 SANDSTONE & SILTSTONE FINER GRAINED 16 60 70.05 Syllabus links 110 50 MEDIUM & COARSER DATUM : RL 105 GRAINED PROPOSED TRACK LEVEL (mAHD) 101.64 104.42 107.20 109.99 112.77 114.69 115.00 115.00 115.00 115.00 114.95 114.00 113.00 113.25 115.80 118.80 121.80 124.80 127.80 130.80 133.80 136.80 139.80 142.80 145.80 148.80 151.80 154.80 157.80 160.65 161.96 162.00 162.00 161.48 159.42 EXISTING SURFACE LEVEL (mAHD) 126.91 129.71 138.36 139.92 141.16 141.49 142.06 145.79 152.42 146.66 137.08 151.17 179.33 185.62 189.89 188.41 186.62 186.65 185.85 173.03 168.17 171.51 174.31 174.46 170.36 172.86 181.89 181.68 Geography K-10 130.54 132.60 137.44 180.00 175.94 175.00 168.64 CHAINAGE (m) 34300 34200 34100 34000 33900 33800 33700 33600 33500 33400 33300 33200 33100 33000 32900 32800 32700 32600 32500 32400 32300 32200 32100 32000 31900 31800 31700 31600 31500 31400 31300 31200 31100 31000 30900 client service provider: project: Figure 66: A page from Sydney Metro Northwest Environmental Impact Statement 1, 2 NOTES: LONGITUDINAL SECTION drawn MG / MH - Geography Stage 5 - Changing places NORTH WEST RAIL LINK 7 HEIGHT DATUM: A.H.D. approved CJP GEOTECHNICAL SERVICES Appendix1. SECTION PREPARED FOR DIAGRAMMATICA – PURPOSESGeological ONLY (NOT FOR INTERPRETATION) long section. DRAFT DIAGRAMMATIC GEOTECHNICAL LONG SECTION 2. ONLY ABOUT 50% OF BOREHOLE LOGS REPRESENTED ON LONG SECTION date 29 / 02 / 12 3. ALIGNMENT BASED ON SUPPLIED DRAFT CONCEPT DESIGN DATED 23RD DECEMBER 2011 title: 4. SECTION VERTICALLY EXAGGERATED 20 TIMES (NOT TO SCALE) scale NTS SHEET 4 OF 9 - the management and planning of Australia’s urban future. 5. TUNNEL CROWN AND INVERT LEVELS SHOWN ARE APPROXIMATE ONLY original figure no: size A4 FIGURE B5 Environmental change and management - human-induced environmental changes across a range of scales - the causes, extent and consequences of the environmental change - management of the environmental change. (GE5-2) explains the processes and influences that form and transform places and environments and building a railway Planning, designing (GE5-7) acquires and processes geographical information by selecting and using appropriate and relevant geographical tools for inquiry Three: Topic (GE5-8) communicates geographical information to a range of audiences using a variety of strategies. Learning experiences Step 1 – Class discussion Display Sydney Metro Northwest Environmental Impact Statement 1, Appendix A – Geological long section http://www.sydneymetro.info/sites/default/files/29_Appendix_C_-_Geological_ Long_Section.pdf%3Fext%3D.pdf on the interactive whiteboard, or distribute the pdf for students to view on their own computers. The teacher explains that most geographical studies create and analyse maps that ‘look down’ on the Earth. However, engineers working on Sydney Metro Northwest examine ‘side-on’ maps to see where the rail line will be elevated, where it will dip underground, and which rock types it will pass through. Figure 67: An example of mapping the route as displayed in Sydney Metro Northwest Environmental Impact Statement 1, Appendix A – Geological long section. 200 TOPIC THREE: PLANNING, DESIGNING AND BUILDING A RAILWAY FASTTRACKING THE FUTURE | SECONDARY EDITION NOVEMBER 2016 201 INDEX AND GEOTECHNICAL LEGEND Step 2 – Listing the rock types Page 177 rock sample EIS 1.pdf 1 24/08/2015 1:48 pm INDEX SOIL & ROCK KEY (CONTINUE) SOIL CONSISTENCY/RELATIVE DENSITY TYPICAL BOREHOLE / TESTPIT DETAILS With reference to Figure 66 (page 201) (the geological long section detailing the rock and VS VERY SOFT COBBLES S SOFT F A A P S 1 F FIRM NWR-BH000 EXPLORATORY HOLE NUMBER FIGURE NO. TITLE 2 ST STIFF LATERAL OFFSET FROM LONG soil types for each section of the alignment), students list the rock types that will need to be CLAYEY SILT Offset 1.00m VST VERY STIFF RL100.00mAHD SECTION B1 INDEX AND H HARD T REDUCED LEVEL (m AHD) R GEOTECHNICAL SAND Fb FRIABLE L S N SOIL CONSISTENCY excavated to construct these different sections of the line.
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