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4.2.5.2.(1)
OP4
ObjectiveOP4 Protection of Adjacent Buildings from Structural Damage
Attribution
Application
Application 1: 
Excavations for the construction of buildings.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A and to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] that are required to be designed in accordance with the requirements of Part 4.
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Intent
Intent 1: 
To limit the probability that an excavation procedure will not take into account the expected ground movements during all phases of construction, which could lead to the excessive displacement of ground, which could lead to damage to adjacent buildings.
Intent 2: 
To direct Code users to Part 8 for other requirements applicable to excavations.
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