Tender rates are often quoted as between 20 and 25 m3/hr. With adequate supervision and sufficient loose spoil material supplied to the crane drop area, these rates can easily be increased. Grabs mounted on crawler cranes, rates depend on... Depth of...
Tractor with backactor, Massey Ferguson or JCB.3 has a 0.3 m3 bucket. Smaller 360 degree excavator has a 0.4 m3 bucket. JCB.6D, Liebherr 400, Hymak 580 or typical 360 degree machine has a 0.5 m3 bucket. 360 degree excavator machine has a 0.6 m3 bucke...
Wagon sizes and tonnage capacities vary and should be taken into consideration. Rock = 2.5 T/m3 Concrete = 2.4 T/m3 Landfill / CDG = 1.9 T/m3 Sand = 1.8 T/m3
Ground Excavation Rates (m3/hr):Ground TypeBucketBulk WorksBasementsTrenchesSmall & DeepSand/Soil0.3m38.78.07.18.4> 0.4m328.515.425.010.0 0.5m350.020.028.613.3Gravel0.3m37.16.96.14.5 0.4m325.914.322.28.7 0.5m340.018.128.611.1Clay/Chalk0.3m37.16.56.14...
Excavate Spoil Heaps and Load to Transport (m3/hr): Material0.6 m30.8 m31.0 m31.2 m3Sand/Soil20.025.630.335.7Gravel20.425.631.337.0Clay/Chalk18.523.227.833.3Boulder Clay16.921.324.430.3Note:0.6m3, 0.8m3, 1.0m3 and 1.2m3 are excavator bucket capacity....
Removal / Transportation Of Spoil By Barge: The size, getting material to the facility, location and movement restrictions of the barge loading facilities are critical to production. A 2,000 m3 flat bottom barge, could easily be loaded 1.5 times per ...
Removal / Transportation Of Spoil By Conveyor: The size and location of the conveyor are critical to production and should be sized according to the most critical peaks in excavation. There are the following parameters to select... Max excavation per...
Modification of an existing 6 m high elevated canal. Normal canal is 12 m in width, to allow single passing on bridge/aqueduct structures, a 5.5 m minimum width is required. Normal depth of water is 1.3 m. Some 4 number "V" shaped piers on 1,200 mm b...
Pre-cast concrete blocks that support standard steel tracks. They are used to reduce noise and vibration as the pre-cast track slab blocks are placed on resin pads (4 no per unit), held in place by fixed side and end restraint blocks. Side restraints...
Asphalt coatings to prepared concrete surfaces, usually undertaken with a 3 man gang. Horizontal Surfaces = 210 m2/wk Vertical Surfaces = 85 m2/wk
Brush applied coatings (tretol etc) to prepared concrete surfaces. A two coat application = 5.0 m2/hr A three coat application = 3.5 m2/hr Sheet materials (bituthene etc) fixed to prepared concrete surfaces. Horizontal Surfaces = 4.0 m2/hr Vertical S...
Polythene Sheeting Sheet materials (DPC/DPM's etc) fixed to prepared concrete surfaces. Horizontal Surfaces = 20.0 m2/hr
Sheeting to be installed and covered over immediately in order to prevent drying out, carried out with a gang of at least 3 people. Horizontal Surfaces = 25.0 m2/hr Vertical surfaces = 15.0 m3/hr
Epoxy based material (eliminator etc), a 2 part mix. It is sprayed on and large areas can be completed in a short time. Usually carried out in two coats, good ventilation is required. A one coat application = 75 m2/hr A two coat application = 38 m2/h...
Large Concrete Pours, lorry pump. Simple Rule Of Thumb, concretors 0.5 - 1.0 hrs/m3 of concrete, depending on access, pour size and concrete availability. Base Slabs etc, 1,200m3 equalling 25 - 35m3/hr per pump, with 3 No pumps and 12 men for 2 shift...
Blinding Concrete Placing blinding direct from ready mix truck, rate of 4-5 m2/hr or 0.2-0.3 m3/hr. Base / Floor Slabs Concourse slab concrete pour, 36 m x 18 m, concrete volume of 1,500 m3 and 290 tonnes of reinforcement. Blind 1 day, formwork 2 day...
Mesh reinforcement - to slabs = 10.5 m2/hrMesh reinformcement - to beams/columns = 2.5 m2/hrReinforcementTask / DescriptionSlow Ave Fast Units Slabs/Foundations, steelfixing, 6mm40.3 38.4 36.5 hrs/tonne Slabs/Foundations, steelfixing, 8mm28.2 26...
Vertical Shafts Vent shaft 10 m dia, build 1 m/day, excavate at 80 m3/day Vent shaft connecting tunnels 6m dia, build 0.75 m/day, excavate at 21 m3/day
West Piling (P.C. Shells), Rate of 100 m/day Balken Piling (Solid P.C. Pile), Rate of 120 - 135 m/day H-Piling, Rate of 200 - 500 m/day
Typical rate for number of formwork uses before shutter remake. NOTE: This varies significantly depending on care taken with shutters and programme time available etc. Walls = 20 uses Slab Soffits = 10 - 15 uses Beam & Column Boxes = 30 uses