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9.14.5.3.(1)
ApplicationIntent
OH1OS2OP2
ObjectiveOS2 Structural Safety
Attribution
[F60-OS2.1,OS2.2,OS2.3]
Application
Application 1: 
Dry wells for foundation drains for buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of inadequate drainage from dry wells due to high groundwater levels, which could lead to excessive moisture loading on the soil.
This is to limit the probability of the accumulation of water under hydrostatic pressure, which could lead to:
  • compromised structural integrity of foundation walls and basement floors, or of elements supported by the walls or floors, or
  • deterioration, which could lead to compromised integrity of elements supported or protected by exterior foundation walls.
This is to limit the probability of harm to persons.
Intent 2: 
To limit the probability of inadequate drainage from dry wells due to high groundwater levels, which could lead to excessive moisture loading on the soil immediately beneath the footings, which could lead to saturation and a reduction in the soil's bearing capacity, which could lead to the failure of foundation walls and basement floors, which could lead to harm to persons.
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