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How to install the rock drill screw rod

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How to install the rock drill screw rod [PDF]

6 FAQs about [How to install the rock drill screw rod]

How do you install expanding rock anchors?

7 key steps to install expanding rock anchors. Choose anchor site carefully. Rock anchors will only perform effectively in solid competent rock (Class 0 Soil). Drill the hole into the competent rock a minimum depth of 12 inches along the drill steel. Be sure to drill so that the anchor rod will be in line with the guy.

How do you use a rock anchor Rod?

Use a bar through the eye to turn the rod until the anchor is fully expanded against the sides of the hole. Removing the wedge tie will occasionally facilitate the wedge expansion. Rock anchors set in holes drilled 12 inches deep in competent Class 0 Soil (hard rock) will develop the full strength of the anchor rod.

Can you drill a pilot hole before installing anchors?

Pre-drilling pilot holes for anchors prior to installation using an auger bit can alert you to large rocks in the earth if you are unsure how rocky it is underneath the topsoil. Depending on the soil type, anchors can actually "push aside" rocks (up to softball/grapefruit sized) during the installation process.

How do you drill a hole with a wedge anchor?

Be sure to thoroughly clean the drilled hole of rock dust and debris. Slide the anchor down in the hole. Use a bar through the eye to turn the rod until the anchor is fully expanded against the sides of the hole. Removing the wedge tie will occasionally facilitate the wedge expansion.

How do I install square shaft & round rod anchors?

Follow these 12 simple steps to install square shaft and round rod anchors. Once all safety concerns have been addressed, attach the Kelly bar adapter and installing tool assembly to the Kelly bar on the installing truck. Insert the upper end of the anchors’ lead section into the installing tool.

How deep should a hole be drilled?

Drill the hole into the competent rock a minimum depth of 12 inches along the drill steel. Be sure to drill so that the anchor rod will be in line with the guy. Holes should be drilled so the diameter is optimally an 1/8th inch larger than the diameter of the unexpanded anchor. For example, the hole drilled for a R315 is 1-7/8 inch diameter.

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