Hard rock definition
Examples of Hard rock in a sentence
Hard rock requiring blasting as described above but where blasting is prohibited for any reason and excavation has to be carried out by chiseling, wedging or any other agreed upon method.
ETC Excavation in earth not exceeding 2m deep 4 Trenches m3 43 5 Pit m3 19 Extra over trench and hole excavations in earth for excavation: 6 Soft rock m3 10 7 Hard rock m3 25 Extra over all excavations for carting away: 10 Surplus material from excavations and/or stock piles on site to a dumping site to be alocated by the Contractor m3 36 Risk of collapse of excavations 11 Sides of trench and hole excavation not exceeding 1.5m deep.
Hard rock (Beach rock) areas or areas where dredging and excavation works cannot be carried out using normal methodology of works shall not be considered as unforeseeable under this Clause.” Delete sub-paragraph (b) of Sub-Clause 4.12 and substitute with the following: (b) Payment for any such Cost, fifty per cent (50%) of which shall be included in the Contract Price (the balance fifty percent of the Cost shall be borne by the Contractor).
ETC Excavation in earth not exceeding 2m deep Trenches m3 5 Pit m3 7 Extra over trench and hole excavations in earth for excavation: Soft rock m3 2 Hard rock m3 5 Extra over all excavations for carting away: Surplus material from excavations and/or stock piles on site to a dumping site to be alocated by the Contractor m3 11 Risk of collapse of excavations Sides of trench and hole excavation not exceeding 1.5m deep.
Hard rock material shall not be used for or incorporated in the backfill of the trench without the Engineer's approval.