Frequently Asked Questions

How much does it cost?
Earthbolt quotes a fixed amount per panel for the installation plus transport costs to and from site.

What depth is an Earthbolt installed to?
An Earthbolt anchor is screwed into the ground to a depth of 1350mm and electronically monitored for torque level to ascertain its kN loading.

What do we need for a formal quotation?
Earthbolt requires the precast layout, including panel elevations to generate a quotation.

How long does it take to install/remove?
Depending on site induction time and ground conditions, the Earthbolt operations team will install enough safety anchors for 50 precast concrete panels in a day. Generally it takes half the time on site to remove the same number of anchors.

What if the ground is not suitable?
Earthbolt require a geotechnical report and with our knowledge of localities and associated ground conditions through experience we know where our product is suitable and where difficulties are going to be encountered. In difficult areas we make every effort to ensure installation with earlier site testing or predrilling pilot holes with a mining spec auger. There are particular localities that we will immediately advise you if our product is not suitable.

What equipment is used in the process?
Earthbolt has a range of excavators with a customized planetary drive unit to install and remove our product. Product is loaded and unloaded in stillage units and distributed around the project site as required. All machines are serviced regularly in accordance with the manufacturer’s guidelines.

Do mezzanine level offices and basement structures cause height issues during removal?
Generally no it is not an issue as removals can be done with our smaller equipment so even access heights down to 2.5 metres are acceptable.

How long can we have them on site?
Our quotations allow the product to be installed on site for 60 days, after which the company reserves the right to charge a daily hire rate. It is generally rare for such cases to occur.

What about underground services?
Before Earthbolt staff commence any installation during the site investigation it is the Site Managers responsibility to clearly mark any existing services to ensure no damage occurs. This has always delivered a problem free installation over the years.

What if the ground close to an anchor is disturbed?
If an anchor is subjected to additional earthworks i.e. trenching within 1500mm or major storm erosion Earthbolt must be notified immediately for our Engineers opinion.

How much lead time do we need to give Earthbolt?
Although we recommend giving us at least 5 days’ notice prior to an installation and removal to ensure our scheduling and booking system runs smoothly it’s not a perfect world especially with weather etc. in the commercial construction industry. For this reason we react as fast as possible to any request and more often than not if a request is made late one day it is not unusual that we are on site first thing the next morning. We pride ourselves on providing first class customer service.

Has an Earthbolt precast propping anchor ever failed?
No. With leading edge design and a failsafe collar incorporated into its design mechanism to withstand lateral and uplift forces applied via severe wind loading no Earthbolt product after 100,000 installations has ever had its structural integrity compromised.