Clearing and Grading Excavation Routes
The routes of all
cable excavations shall be cleared and leveled so that on completion of the
works the finished reinstated ground level shall be the same as that obtained prior to the commencement of the Works.
Foundation Pits Excavates Technique
Excavation for foundations to a greater depth
or width than is directed or required shall be made good with concrete or with
other suitable material to the satisfaction of the Engineer. No concrete shall
be placed until the excavations have been inspected and approved by the
Engineer. All replacement of unauthorized excavations shall be at the
Contractor's expense.
The Surface to be Dry
Importance is
attached to keeping dry and clean the excavated surfaces upon or against which
concrete has to be deposited or built and no concrete is to be deposited until
such surfaces are properly drained. Special precautions are to be taken to
prevent water from washing out mortar whilst setting or in any way injuring the
work. No reinforcement steel shall be placed in water and no water shall be
permitted to rise over the reinforcement steel until the concrete has been
placed. Blinding concrete shall be placed the same day the excavation is bottomed.
Shoring Procedure
The Contractor shall
provide to the satisfaction of the Engineer all timbering or other approved
supports and shore the sides of excavations, and pits, in such a way as will be
sufficient to secure them from falling and to prevent any movement. All
responsibility connected with such shoring shall rest with the Contractor.
Back-filling and Foundations Procedure
Refilling of
foundation pits shall be carried out only after the foundations and structural
Works within the excavations have been inspected and approved by the Engineer.
Unless otherwise
directed all filling shall be approved excavated material and shall be
deposited and compacted, using approval
How does Settlement?
The contractor shall be responsible for
making well all settlements of filling due to any cause whatever may
occur up to the end of the period of maintenance.
Surplus Material
All material surpluses to the requirements of
fill and all debris and rubbish shall be removed and deposited as directed by the
Engineer.
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