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8 Rotosonic drilling 1 Fire hydrants are often used Water usage from fire hydrants should be <br /> for water source.Hydrants cleared with local muncipalities prior to use. <br /> deliver water at high Only persons that know how to use the <br /> pressure.Pressurized water hydrant should be performing this task. <br /> can cause flying parts/debris Ensure all connections are tight,and hose <br /> and excessive slipping line is not run over to cut by traffic.Any leaks <br /> hazards. from the hydrant should be reported <br /> immediately. <br /> 2 This method requires a lot of Ensure sufficient overhead clearance. <br /> clearance.The drill head can <br /> turn 90 degrees to attach to <br /> the next drill flight or casing. <br /> This usually requires a large <br /> support truck to park directly <br /> behind the rig.As the drill <br /> head raises the new casing <br /> flight is angled down at the <br /> same time until it can be <br /> turned completely vertical. <br /> 3 Heavy lifting of cores can Always use 2 people to move core <br /> cause muscle strain. containers. Use caution moving core <br /> samples to layout area.Plan layout area to <br /> ensure adequate aisle space between core <br /> runs for logging.Keep back straight and use <br /> job rotation. <br /> 4 The rotosonic drill head can The operator and helper must communicate <br /> move very quickly up and and stay clear of the path of the drill head. <br /> down while working on a The drill utilizes two large hydraulic clamps to <br /> borehole.Moving parts can continuously hold casings while <br /> strike someone or catch load/unloading previous casings.Do not <br /> body parts. wear loose clothing. <br /> 9 Direct push drilling 1 The drill rods will be handled Keep a minimum of 5 feet away from drill rig <br /> by workers most of the time operation and moving parts. <br /> rather than the rig doing it, <br /> therefore pinch points can <br /> cause lacerations and <br /> crushing of fingers/body <br /> parts. <br /> 2 The direct push rigs are Do not put yourself between the rig and a <br /> usually meant to fit in spaces fixed object.Use Spotters or a tape measure <br /> where larger rig can't.Tight to ensure clearances in tight areas.Pre-plan <br /> spaces can pin workers. equipment movement from one location to <br /> the next. <br /> 3 Some direct push equipment The drill rig should be used in a large open <br /> is controlled by wireless area to test wireless controls prior to moving <br /> devices.These controls can to boring locations.The operator of the rig <br /> fail and equipment can strike will test the kill switch with wireless remote <br /> workers or cause damage to prior to use.Operator will stay in range of rig <br /> property. while moving so that wireless signal will not <br /> be too weak and cause errors to the controls. <br /> 4 Sampling sleeves must be It's preferable to let the driller cut the sleeves <br /> cut to obtain access to soil. open.Many drillers have holders for the <br /> Cutting can cause sleeve to allow for stability when cutting. <br /> lacerations. If you cut the sleeves,use a hook blade, <br /> change blade regularly,and cut away from <br /> the body. <br /> 5 Soil cores may Wear nitrile gloves and saftey glasses for <br /> contain contaminated protection from contaminated media when <br /> media. logging soil borings. <br /> 10 Rock coring 1 Flying debris can hit workers Rock chips or overburden may become <br /> or cause debris to get in airborne from drilling method.Wear safety <br /> eyes. glasses and hard hat and remain at a safe <br /> distance from back of drill rig. <br /> 2 Heavy lifting of cores can Always use 2 people to move core <br /> cause muscle strain. containers. Use caution moving core <br /> samples to layout area.Plan layout area to <br /> ensure adequate aisle space between core <br /> runs for logging.Keep back straight and use <br /> job rotation. <br />