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Components of an accident recovery unit
The accident recovery unit is installed
as a precautionary measure in road
tunnels. In the event of an accident
crashed vehicles can be effectively and
quickly recovered.
Increasingly, emergency and accident
recovery services demand that suitable
accident recovery units are installed
every 100 metres in suitable recesses
in tunnel walls.
The lifting link is similar to the type
used for moving precast concrete
elements.
The HALFEN Recovery anchor system
is a cast-in stainless steel spherical head
anchor, load class 20,0, with a freely
pivoting standard lifting link attached.
A securing-bolt is provided to prevent
unintentional removal of the lifting link.
20
20
2
18 0
0
Spherical head transport anchor
Description
Recess formers with threaded rods
and wing-nut
Load device with pre-drilled hole
(Universal head lifting link 6104-12/20),
not illustrated: locking pin
HALFEN article number
HALFEN order number
Spherical head transport anchor, stainless steel,
load class 20,0
6000-20,0-0180 A4
0735.009-00003
Recess former round,
with threaded rods and wing-nut
6232 – 20,0 
0736.020-00008
Load device with provision for
locking pin to prevent unintentional removal
6104-12/20
0738.009-00001
Chain (to prevent unauthorized removal)
Provided by customer
Anchor plate with bolt anchor/U-shaped bar, weldable
Provided by customer
The recess formers are reusable. Please order as many as needed for one concreting section.
© 2015 HALFEN · TI-BGA 15-E · www.halfen.de
HA L F E N R E C OVE RY ANCHO R S YS TEM
Installation and Application
Installation
Einbau
▸ Constructing the formwork for
a tunnel-recess (recommended
dimension: see page 4).
▸ The spherical-head anchor is inserted into the recess former and both
are then fitted to the formwork.
▸ Drill a hole in the formwork and
attach the recess former to the
formwork using the threaded bolt
and the wing nut.
On-site reinforcement / Fixing the anchor-plate:
• the tunnel wall must be sufficiently dimensioned for accident recovery;
required reinforcement must be installed
• additional reinforcement is not required for the transport anchor
• an anchor-plate with a head anchor is placed above the transport anchor
• the anchor-plate is fixed flush to the top of the reinforcement
Ensure the recess former
is properly closed and is
completely flush with the
formwork.
Entfernen der Aussparungskörper
▸ After the concrete has set, remove
the wing nut. The formwork can
now be removed.
▸ Use two metal rods as shown
in the illustration to remove the
recess former.
A hemispherical recess with the
anchor head in the middle has
been formed.
2
© 2015 HALFEN · TI-BGA 15-E · www.halfen.de
HA L F E N R E C OVE RY ANCHO R S YS TEM
Installation and Application
Attaching the clutch
▸ The lifting link can be attached after removing the
recess former.
The finished recesss after removing the formwork and the recess former
▸ When connecting the lifting link ensure the tongue
points in the direction of the link.
Attaching the link
▸ Insert the retaining pin; the pin prevents unintentional
release of the lifting link while allowing it to be turned.
Retaining pin
A chain can be installed to prevent theft of the recovery
anchor. The chain is passed through the handle and
a u-shaped bar inserted in the two chain ends. The u-shaped
bar with the chain-ends is welded to the cast-in metal plate.
Attached recovery anchor;
not secured with a chain
© 2015 HALFEN · TI-BGA 15-E · www.halfen.de
3
HA L F E N R E C OVE RY ANCHO R S YS TEM
Installation and Application
Recommended dimension for an accident recovery anchor wall-recess
15
98
46
26
15
90
20
Access path
26
26
54
90
142
36
15
16
26
26
26
horizontal section with anchor attached
front view
Tender example for the accident recovery system
Deliver and install a load class 20,0, spherical head transport anchor, length 170 mm.
In stainless steel A4 1.4571/1.4404 with reinforcement. Additional on-site reinforcement is not included.
Construct a recess with a back surface area of 60 cm × 120 cm, 20 cm deep with side surfaces at a slant of 30°.
Insert the spherical head anchor in a round recess former and secure both to the formwork.
Secure the recess former to the formwork with the treaded rod (included with delivery).
Place reinforcement around the recess former in the area around the anchor head.
T - 103-E - 04/15
Deliver and install a load class 20,0, zinc galvanized, universal head clutch.
The clutch is attached to the spherical head anchor after striking the formwork.
The universal head clutch load class 20,0 is identified with a permanent
unique identification number to facilitate annual safety checks.
The clutch is fitted with a device – by the manufacturer – to prevent unintentional release of the clutch from the anchor.
A chain fixed with a dowel (with an external thread) and a ring bolt to prevent theft of the recovery anchor is installed.
PDF 04/15
horizontal section
© 2015 HALFEN GmbH, Germany
applies also to copying in extracts.
Tunnel floor
HALFEN GmbH
Liebigstr. 14 ⋅ 40764 Langenfeld ⋅ GERMANY
Tel.: +49 - (0)2173 / 970-9025
Fax: +49 - (0)2173 / 970-427
E-Mail: es.tpa@halfen.com
www.halfen.com
The Quality Management System of Halfen GmbH is certified for the locations
in Germany, France, the Netherlands, Austria, Poland, Switzerland and the
Czech Republic according to DIN EN ISO 9001:2008, Certificate No. QS-281 HH.
© 2015 HALFEN · TI-BGA 15-E · www.halfen.de