5-1

with particular reference to dead loads, hydrostatic pressure, earth pressure, live loads,

special conditions of loading, materials and design stresses, and methods of analysis.

5-2

deadweight of the structure, including all mobilizable earth weight plus friction and

holddown piles, must be greater than the maximum buoyancy.

5-2.1

weight of reinforced concrete structures on the basis of 2403 kg/m3 (150 lb/ft3) (weight

in air).

5-2.2

weight of earth engaged by any extension of the slab beyond the outside of the wall.

Earth below the drydock floor, when engaged by holddown piles or other devices, is

included in the computation of the total weight.

5-2.2.1

5-2.2.1.1

961 kg/m (60 lb/ft3) for submerged soils and 1602 kg/m3 (100 lb/ft3) for soils above

3

water levels.

5-2.2.1.2

with mean high water, use the soil weight above the slab projection between a vertical

plane at the outer edge of the projection and the back of the wall. With a dock empty

and extreme high water, add the weight of earth wedge between the vertical plane and

an intersecting plane sloping 15 degrees outward from the vertical plane.

5-2.2.2

5-2.2.2.1

use 961 kg/m3 (60 lb/ft3.) Since this weight is usually very important, determine the

correct weight by test if there is any indication that the soil may be of a greater or lesser

weight.

5-2.2.2.2

may be computed by methods given in DM-7.02 *Foundations and Earth Structures*.

The total holddown capacity is not necessarily the sum of the individual capacities of a

pile group and may never be larger than the weight of the block of soil included in the

pile group.

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