Instrumentation
Wiki PageA typical rate of 3 days per instrument can be used to calculate detailed ground monitoring scenarios.
Feb 6, 2009
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Grouting
Wiki PageVertical Grout Curtain Application of grout curtain. A typical rate of 6.20 hrs/m run.
Feb 6, 2009
Rail Grab
Wiki PageMachine Rail Mounted Hydraulic Grab Rate of 30 - 50 m3 of sand per hour (dependant upon depth), with 1.5 m3 made (2.0 m3 bucket) with each machine lift. Giving a required lift rate of 2.4 mins. A rate of 37 m3/hr (per rig) was achieved on HK Station ...
Feb 6, 2009
Crane Grab
Wiki PageTender 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...
Feb 6, 2009
Hydraulic Excavator
Wiki PageTractor 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...
Feb 6, 2009
Material Weights
Wiki PageWagon 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
Feb 6, 2009
Ground Excavation
Wiki PageGround 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...
Feb 7, 2009
Excavate & Load
Wiki PageExcavate 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....
Feb 7, 2009
Spoil By Barge
Wiki PageRemoval / 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 ...
Feb 7, 2009
Spoil By Conveyor
Wiki PageRemoval / 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...
Feb 7, 2009
Elevated Watercourse
Wiki PageModification 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...
Feb 7, 2009
Floating Track Slab
Wiki PagePre-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...
Feb 7, 2009
Asphalt Waterproofing
Wiki PageAsphalt coatings to prepared concrete surfaces, usually undertaken with a 3 man gang. Horizontal Surfaces = 210 m2/wk Vertical Surfaces = 85 m2/wk
Feb 7, 2009
Bituminous Waterproofing
Wiki PageBrush 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...
Feb 7, 2009
Polythene Waterproofing
Wiki PagePolythene Sheeting Sheet materials (DPC/DPM's etc) fixed to prepared concrete surfaces. Horizontal Surfaces = 20.0 m2/hr
Feb 7, 2009
Bentonite Waterproofing
Wiki PageSheeting 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
Feb 7, 2009
Epoxy Waterproofing
Wiki PageEpoxy 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...
Feb 7, 2009
Concrete Pumping
Wiki PageLarge 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...
Feb 7, 2009
Concrete Cycle Times
Wiki PageBlinding 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...
Feb 7, 2009
Reinforcement
Wiki PageMesh 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...
Feb 7, 2009