QUESTION IMAGE
Question
- calculer le volume dexcavation dune maison de 38 x 28 avec une profondeur dexcavation de 8-6\ avec une pente 1 dans 1 sachant que : la projection de la semelle est de 8\ et on tiendra compte de lespace du drain français autour du bâtiment est de 16 \ (réponse en vg³) : 1) trouver la largeur excédentaire du carré de la maison larg exc.= 8\ + 16\ + (8-6\ / 2) = 24\ + 4-3\ = 2 + 4-3\ = 6-3\ 2) v = (38 + 6-3\ + ) x (28 + + ) x 8-6\ v =
Step1: Convert all units to inches
First, convert feet to inches (1 foot = 12 inches):
- $38' = 38 \times 12 = 456''$
- $28' = 28 \times 12 = 336''$
- $8'-6'' = (8 \times 12) + 6 = 102''$
- $6'-3'' = (6 \times 12) + 3 = 75''$
Step2: Calculate total length/width
The excess width applies to both sides of the house:
- Total length: $456'' + 2 \times 75'' = 456 + 150 = 606''$
- Total width: $336'' + 2 \times 75'' = 336 + 150 = 486''$
Step3: Compute volume in cubic inches
Volume formula: $V = \text{length} \times \text{width} \times \text{depth}$
$V = 606 \times 486 \times 102$
$V = 606 \times 49572 = 30,040,632$ cubic inches
Step4: Convert to cubic yards
1 cubic yard ($Vg^3$) = $36 \times 36 \times 36 = 46656$ cubic inches
$V = \frac{30,040,632}{46656}$
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$558.14$ $Vg^3$ (or rounded to $558$ $Vg^3$)