milkatinka Posted January 8, 2010 Posted January 8, 2010 Hello, this is my first civil project. I have a my survey ready with all the contour lines. Now:"Ms. Capitano decides to keep the driveway and the house level at elevation 180. Her surveying company recommends an angle of repose of 1.5:1. Draw the driveway layout cut and fill in the lower-left corner of your drawing. Use the information listed here to show the new contours on both sides of the driveway." In my student book there is only one profile layout and it is not very clear. Can you please help me with some info....The driveway centerline is made of 2 curves and a straight line. I red that the profile line has to be a straight line and most of the time it is the centerline of the road. Thank you Quote
CarlB Posted January 8, 2010 Posted January 8, 2010 Yes it's typical the centerline of the road is used as the "profile line"; the horizontal distance and elevation along this line is used to develop the profile. The request is to draw contour lines of cut & fill, though. if not a lot of fall I'd suggest you use a straight grade between ends of the driveway. Elevations along the shoulder (say 6' from c.l.?) would be a little lower than the centerline. From there the grade falls or rises at a rate of 1.5:1 (horiz:vertical). Calculate where even feet/meters occur a few places along the shoulder & side slopes, connect them with contour lines. Quote
Coosbaylumber Posted January 8, 2010 Posted January 8, 2010 What is "Angle of Repose" Am not used to such termonology. Maybe having something to do with cut/fill in section? Wm. Quote
CarlB Posted January 8, 2010 Posted January 8, 2010 "angle of repose" is a term for the angle a pile of material will slough to if it's dumped on the ground, this angle would represent it's maximum stable angle/slope. The term is used improperly in this case, it should just be "slope" or "side slope". Quote
Coosbaylumber Posted January 8, 2010 Posted January 8, 2010 Now, think I got a grasp as to what was being mentioned. For in our area, cannot use the angle of 1:1.5 unless specifically mentioned and addresed to in soils report. Otherwise normal slope is 1:2 (flatter) as per Chapter 70 of the UBC right now. Wm. Quote
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