Geologic data methods: tunnels | Geography homework help

1.  GIVEN: TOPOGRAPHIC MAP WITH TUNNEL ALIGNMENT

 – ADJUSTMENTS MADE IN TUNNEL ALIGNMENT

 – INCREASE  HEAD DIFFERENCE 

 – CONTOUR INTERVAL: 10 FT

 – HORIZONTAL SCALE: 1 IN. = 80 FT: 40 SCALE x 2

 – NORTHWEST PORTAL ELEVATION IN ROCKY PEN RUN:_180 FT

 – DOWNSTREAM PORTAL ELEVATION:  160 FT_  

  2.  TUNNEL LENGTH: 5600 FT 

3.  CONSTRUCT THE TOPOGRAPHIC PROFILE OVER AND ALONG THE TUNNEL ALIGNMENT

– VERTICAL SCALE: 1 IN. = 200 FT

 – VERTICAL EXAGGERATION:  VE = ______

– SHOW: 

  – GROUND SURFACE

 – TUNNEL PROFILE

 – LABLE DIAGRAM

– USE ENGINEERING PAPER

  4.  PLOT GEOLOGIC STRUCTURES ON TOPOGRAPHIC PROFILE