Working distance beyond the outer edge of the footing

      CIV 230 -- Lab No. 12: Basement Excavation Page 1 of2 1. Determine the amount of excavation needed for the basement shown. Allow a2-foot working distance beyond the outer edge of the footing, and slope up atl:1. Assume existing ground with topsoil stripped is level at an elevation 1.0' below the top of the foundation wall. 2x4WNL WTHT / l6t' Ofr ,/ B"NIO" ANCH'R 9A-{ et2', 0,C, t+4 WOIR. e 12" 0,c,00HWAY5 +9 00W15 e 12" O,C, NIT3AIINCI 3twcr10N5 ZVACH +4WVR (ffi tN? 001rcM 4VAG1+4 CONI,WOAR L-',"-) Figure l4-l Basement Plan View Figure l4-2 Wall Section 2. Determine the amount of backfill needed forthe basement in Problem 1. (Assume no backfill required inside the builditrg.) Express your answer in bank cubic yards assuming a l5Yo shrinkaee factor. CIV 230 -- Lab No. 12: Basement Excavation Pase 2 of2 3. Determine the amount of excavation needed for the basement shown. A one-foot working distance is required beyond the outer edge of the footing, and the excavation will be sloped.rp at 1:1. Assume existing ground with topsoil stripped is level atan elevation 6" below the top of the foundation wall. (Hint - using the dashed lines and 3 areas shown, calculate the excavation for each area separately and then add them together.) 2 x4WNL v,trft|7 / 16" m , / 6"X lO" Al.l0iOK 9A.{ etz't 0,C, ++4 WVPR e 12" 0,c,90rAwAY5 #9 2An{eL5 @ 12" 0,C, NIYft:V$Nil VIWCIONS 2VA&1+4 WzAR ftr tNV vofi2M ' VALH *4 CA:{,W9lR Figure 14-3 Basement Plan View Figure l4-4 Wall Section