Monday, September 16, 2013

Rock Breaking And Ground Projects In Industry

By Elle Domie


On completion of setting out each portion of the Works the Contractor shall notify the Superintendent, and shall obtain the Superintendent's permission to proceed with excavation. At his discretion the Superintendent may check the Contractor's setting out, but any such check by the Superintendent shall not relieve the Contractor of his responsibility to set out the works. Should the Superintendent give the Contractor permission to proceed without checking the setting out, this will in no way relieve the Contractor of his responsibility to set out the Works.

The Contractor shall be responsible for determining the location of any underground services (e.g. power cables, pipelines, telephone cables etc), in the area of excavation and shall ensure that all such services are protected from damage or displacement during the source of the Work. Should any damage occur all associated repair cost shall be at the Contractor's expense. The Contractor shall excavate by any method elected provided that the method will result in work conforming to the requirements herein; will conform to all lawful safety requirements; and will not cause damage or interference to adjacent construction work, the plant or its normal operation.

Should any destruction occur all associated repair expense will be at the Supplier's expense. The Supplier will excavate by any method elected provided that the method will result in work conforming to the requirements herein; will conform to all lawful safety requirements; and will not cause destruction or interference to adjacent construction work, the plant or its normal operation. Pumps will not discharge into existing operating locations of the plant nor on to adjacent work locations. The Supplier will carry out all excavation under well drained circumstances.

Excavations shall be accurately finished to lines, levels and grades as shown on the drawings. Excavations for footings, foundations and walls which are carried below the specified levels shall be filled with lean mix concrete at the Contractor's expense unless other fill material is approved by the Superintendent. Filling shall be at the Contractor's expense unless otherwise approved by the Superintendent.

Should any destruction occur all associated repair cost will be at the Vendor's cost. Excavations will be accurately finished to lines, heights and grades as shown on the plans. The Vendor will carry out all excavation under well drained circumstances. The vendor will perform all project necessary to protect the excavation and other projects from flooding by rain water, ground water or plant process liquors. Adequate pumping facilities will be provided and operated to maintain excavations in a dry condition adequate for placement of concrete or the installation of other items.

The bottoms of completed excavations shall be kept free and cleaned of loose material, water, other liquid and rubbish and shall be kept free from trafficking. The bases of completed excavations shall be inspected by the Superintendent to determine whether the exposed material is suitable or unsuitable for the required bearing purpose. Additional excavation may be directed by the Superintendent.




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