Flexible vehicle and pedestrian control for low frequency access.
Retractable Bollard Installation Details
Also known as telescopic, "pop-up", or collapsible bollards - Reliance Foundry's retractable bollards provide flexibility in environments where security and access may be of equal importance. Our retractable, collapsible, or telescopic Bollards can be lowered when vehicle passage is necessary, or at any time in case of an emergency. When in the lowered position, the top of each bollard is flush with the grade, and completely hidden.
Appropriate for medium security installations where occasional vehicle access must be blocked, and complete removal of the bollard cylinder is not necessary or desired. The bollard post is easily lifted from within the in-ground receiver, and locked into place. With a simple twist the bollard cylinder retracts flush into the surface, and the retracted bollard is covered by a locking lid with a tamper-resistant key for extra security. These Bollards are effective in applications such as pedestrian walkways, car dealerships, street malls, public fairgrounds and other situations where pedestrians or property must be protected from vehicle incursion. These manually retractable bollards are especially effective in areas where power may not be available.
Please note: For any of the following installation methods, Reliance Foundry is not responsible for site preparation or footings. The following is provided as a guideline only, and engineering or architectural design should be used for proper security Bollard site preparation or footings.
These Bollards should NOT be installed in low-lying areas, in areas with poor drainage, or in areas subject to freezing. If the Bollard must be installed in such areas, then sufficient means to remove water from around and below the Bollard should be considered.
Our retractable Bollards consist of two main components
the Retractable Bollard RECEIVER, which is the exterior portion of the assembly that gets embedded into the ground, and
the rising Retractable Bollard POST, which is the interior portion of the assembly that rises from within the embedded assembly
Assuming good drainage is present, our Collapsible Bollards can be installed into new concrete foundations, or can be installed into existing grade.
New Installations
Step One - Preparation of the footing
Excavate a hole of 14 inches diameter minimum, to and a minimum depth of 54 inches
Place drainage rock/gravel at the bottom of the hole to obtain a thickness of at least 12 inches, taking care to compact it well to avoid future settling
Step Two - Installing the bollard
Install the Retractable Bollard RECEIVER inside the center of the excavated hole, ensuring it is vertical in both planes and that the top edge is 0.25 - 0.40 inches above the final grade surface.
DO NOT measure vertical alignment by the Retractable Bollard RECEIVER, instead raise the Retractable Bollard POST to the upright position, and make sure the Bollard is correctly aligned, positioned and level.
Fill the hole with concrete to the top (grade) surface.
The top level of the flange must be approx. 0.25 - 0.40 inches higher than the grade surface to limit the flow of rainwater into the pit.
Step Three - Finishing
Smooth the top of the concrete with a trowel, providing a tapered lead to the top of the Retractable Bollard flange (which should be approx. 0.25 - 0.40 inches higher than the grade surface)
The Inner Bollard should be left in the down position until the concrete dries.
Allow at least 24 hours for the concrete to dry prior to operating the Retractable Bollard.
Installation into existing grade (asphalt, brick pavers, concrete, etc.)
Before commencing with this installation method, great care must be taken to ensure the proposed location hole does not come into contact with any underground services.
Service drawings should be obtained and referred to during this process
A survey of the area underneath the concrete should be taken prior to digging or drilling, including an X-Ray of the area to ensure there are no utilities present underneath the concrete.
When using proprietary installation equipment, close attention should be paid to Health and Safety recommendations of the manufacturer/hirer.
All excavations should be protected by a safety barrier.
Step One - Preparation of the footing
Drill or cut a hole of 14 inches diameter minimum into the existing grade.
Excavate the hole to a minimum depth of 54 inches.
Place drainage rock/gravel at the bottom of the hole to obtain a thickness of at least 12 inches, taking care to compact it well to avoid future settling.
Step Two - Installing the bollard
Install the Retractable Bollard RECEIVER inside the center of the excavated hole, ensuring it is vertical in both planes and that the top edge is 0.25 - 0.40 inches above the final grade surface.
DO NOT measure vertical alignment by the Retractable Bollard RECEIVER, instead raise the Retractable Bollard POST to the upright position, and make sure the Bollard is correctly aligned, positioned and level.
Fill the hole with concrete to the top (grade) surface.
The top level of the flange must be approx. 0.25 - 0.40 inches higher than the grade surface to limit the flow of rainwater into the pit.
Step Three - Finishing
Smooth the top of the concrete with a trowel, providing a tapered lead to the top of the Retractable Bollard flange (which should be approx. 0.25 - 0.40 inches higher than the grade surface)
The Inner Bollard should be left in the down position until the concrete dries.
Allow at least 24 hours for the concrete to dry prior to operating the Retractable Bollard
Bollard Brochure
Retractable Installations
