Road Defense Barriers and Gates
Defence-Structures DEAD STOP BARRIERS
are designed to resist the impact from moving vehicles, and to stop
them in a short distance without the truck or the pay load entering
your secure area. They can be built to resist a variety of threats
depending on the likely speed of approaching vehicles.
They are designed to stop the truck dead in 2m,
and to prevent penetration of the protected area. The 2m is the
crushing of the truck, not the barrier.
They can have chains or handrails connecting them
to stop motorcycles or shopping trolleys. They should be combined with gates, labyrinths, cover from view screens
and other defence structures. Keeping potential bombs as far away as
possible from the vital areas is an important factor in force
protection.
Such road barriers may be accompanied by softer
barriers to make them less lethal.
The barriers may be founded in holes filled with
concrete, or can be surface mounted on concrete plinths; you will need
to describe the emplacement to us before design.
Similar barriers can be built to withstand bigger
vehicles at any speed, but it will usually be better to limit approach
speeds if possible.
Depending on their positioning they can also be
suitable car bomb protection structures.
Defence Structures Embedded Bollards
Embedded bollards are an effective barrier to VBIED's and other high
speed vehicle attacks. Such bollards can be installed or retrofitted
with Defence Structures doors or gates with the ability to stop and
destroy high speed vehicles.
Defence Structures Surface Mount Dragon's Teeth
There is also a need for temporary road barriers, and barriers that do
not need to have foundations. In this case the barriers are a battery
of DEFENCE-STRUCTURES Dragon's
Teeth. These are specially shaped triangular concrete blocks
that can be lifted into position using a fork lift truck or crane and
linked with chain to block roads or other possible approaches. The kit
for these consists of sets of reusable formwork with sets of internal
steel work, into which the client can pour concrete, either at a
distance or on the final resting site.
Surface mounted Dragon's
Teeth are proved to be successful in stopping vehicle borne
improvised explosive devices (VBIEDs) and all other types of vehicle
attack. The surface mounted Dragon's
Teeth can also be fitted with gates raging from personnel
doors to large vehicle gates that will also defend against VBIEDs and
all types of high speed vehicles.
BSi PAS 68 Testing
Gates are available from 4.5m to 12m, and the following
sizes/combinations have been BSi PAS tested.
Gate Type |
Brief Test Details |
Result |
PAS information |
6
Dragon's Teeth
with straps |
7.5 ton truck
driven directly into
the Dragon’s Teeth at 80km/h |
Restrained
&
immobilised vehicle |
BSi
PAS 68:2007 test
V / 7500[N3] / 80 / 90 : 7.9 / 0 |
4.5m Access Gate with 6
Dragon's Teeth |
7.5 ton truck driven directly into
the gates at 64km/h |
Restrained &
immobilised vehicle |
BSi PAS 68:2010 test
V / 7500[N2] / 64 / 90 : 6.1 / 0 |
6m
Access Gate with 6 Dragon's Teeth |
7.5 ton truck
driven directly into
the gates at 80km/h |
Restrained
&
immobilised vehicle |
BSi
PAS 68:2010 test
V / 7500[N3] / 80 / 90 : 11.8 / 0 |
4.5m Access Gate Twin Bollards |
7.5 ton truck driven directly into
the gates at 64km/h |
Restrained &
immobilised vehicle |
BSi PAS 68:2010 test
V / 7500[N3] / 64 / 90 : 7.8 / 0 |
12m
Access Gate Twin Bollards |
7.5 ton truck
driven directly into
the gates at 64km/h |
Restrained
&
immobilised vehicle |
BSi
PAS 68:2010 test
V / 7500[N2] / 64 / 90 : 1.0 / 9.3 |
For further
information please use our contact
form.
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