Soft rock definition

Soft rock means all hard ground such as ouklip, hard shale, decomposed rock, loose boulders and large stones, etc., which require the use of pneumatic tools, mechanical rippers and/or excessive hard labour to excavate and remove economically.

Soft rock means hard material the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness

Soft rock means hard material, the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness

Examples of Soft rock in a sentence

• Soft rock to be used at locations where decomposed or fissured rock, hard gravel, kankar, lime stone, laterite or any other soil of similar nature is met.

• Rock in the Bill of Quantities will be itemised in three classes:-Class ‘A’ Soft rock of the type known locally as ‘tuff’ which in the opinion of the Engineer cannot be considered as hard rock but which considerably increases the amount of labour needed for its removal shall be known as Class ‘A’ rock.

• Excavate in pickable material not exceeding 2m deep below natural or reduced ground level: 3 Trenches, Holes m3 288 Extra over excavation in pickable material for column bases, trenches, lift pits, sumps, etc for excavation in: 4 Soft rock.

• The cover letter shall include the following items:  The Offeror will certify a validity period of 90 days for the prices provided.

• A1 : 6 A2 : 5 A3 : 6 Extra over trench and hole excavations in earth for excavation in: 6 Soft rock.

• Excavate in pickable material not exceeding 2m deep below natural or reduced ground level: 3 Trenches, Holes m3 230 Extra over excavation in pickable material for column bases, trenches, lift pits, sumps, etc for excavation in: 4 Soft rock.

• Rock in the Bill of Quantities will be itemised in three classes:- Class ‘A’ Soft rock of the type known locally as ‘tuff’ which in the opinion of the Engineer cannot be considered as hard rock but which considerably increases the amount of labour needed for its removal shall be known as Class ‘A’ rock.

• A1 : 3 A2 : 3 A3 : 4 Extra over trench and hole excavations in earth for excavation in: 6 Soft rock.

• Soft rock of the type known locally as “tuff” or “magadi” which in the opinion of the Engineer cannot be considered as hard rock but which considerably increases the amount of labour needed for its removal shall be known as Class I rock.

• As per the Standard, for safety of structures from threshold damage, the ground particle velocity should not exceed the following:Soil, Weathered or Soft rock 70 mm/sec Hard Rock 100 mm/secThe results are presented in the Table 7 below for the maximum chargeTable 7 Peak Particle Velocity (V)S.

More Definitions of Soft rock

Soft rock means rock that can be loosened by hand, pick or crowbar and includes hard shale, compact ouklip, stone of a similar hardness and boulders from 75mm diameter up to 0,03 cubic meters in volume.

Soft rock means weathered or disintegrated materials which can be removed or excavated using excavators or shovels, or hand picks or tractor drawn tines or rippers for breaking up the materials.

Soft rock means rock that cannot be economically excavated by hand and without the use of explosives. Mechanical means i.e. machines shall be used for this purpose.

Soft rock means rock which can be loosened by hand pick axe or crow- bar and includes hard shale,