Transcription of METHOD STATEMENT FOR DRILLING - Archway Engineering
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METHOD STATEMENT FOR DRILLING - Archway Engineering
Sample OnlyMETHOD STATEMENT FOR DRILLING & SAMPLING WITH ARCHWAYCOMPETITOR RIGG eneralThe Competitor is designed to sink boreholes up to 130 mm diameter through soils and weakrock, including clays, silts, sands, gravels and chalk. The rig is primarily used for shallow siteinvestigations to a maximum depth of 10 metres, and for carrying out in-situ tests (SPT andDP) to a maximum depth of 15 metres. In practice, the actual depth achieved is dependent onlocal ground rig consists essentially of a mechanized drop-weight that repeatedly falls onto an anvil,driving attached sample tubes or probe rods into the ground. The METHOD can therefore beclassified as a form of drive sampling in which a tube or split tube sampler having a sharpcutting edge at its lower end is forced into the ground by dynamic impact (BS 5930: 1981).After driving samplers to the required depth, they can be simply extracted using an integralhydraulic ram on the rig.
Sample Only METHOD STATEMENT FOR DRILLING & SAMPLING WITH ARCHWAY COMPETITOR RIG General The Competitor is designed to sink boreholes up to …
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