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Figure 10-4.A cross section plotted on cross-section paper.
EARTHWORK   VOLUME - 14070_208

Engineering Aid 1 - Advanced Structural engineering guide book
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In this formula,  W is the width of the highway;  hl and hr, are the vertical distances of the left and right slope  stakes  above  grade;  dl and dr are  the  center-line distances of the left and right slope stakes; and c is the depth  of  the  center-line  cut  or  fill.  Applying  the formula for station 305 + 00 (fig. 10-4), you get the following   results: A = (40/4)(8.2+ 12.3)+ (9.3/2)(29.8+ 35.3)= 507.71 square feet. AREA  OF  FIVE-LEVEL  OR  IRREGULAR SECTION.— Figures 10-6 and 10-7 are the field notes and  plotted  cross  sections  for  two  irregular  sections.  To Figure 10-7.—Cross-section plots of stations 305 and 306 noted in figure 10-6. Figure  10-6.—Field  notes  for  irregular  sections. 10-9







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