2010年6月26日星期六

Site clearance & removal of topsoil

-top soil-upper level of earth usually not exceeding 300mm deep
-excavation mechanical shovel or bulldozer
roll bar
-dumper to move spoil

mechanical shovel
-take off layers of soil in buckets
-It can be raised , lowered or tilted to deposit the earth into a dumper and removed elsewhere on site .

Bulldozer
-Push the soil layer by layer to one side and pile it up nearby
-It does not dig out or lift out the soil

Dumper
-This truck can perform many task on a buildings site , including the movement of soil over short distances .
-The body of the dumper dips forward and deposits the soil in the required position.

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