Product specifications

The Formwork Experts
10 999759002 - 06/2008 Ü
User information Doka heavy-duty supporting system SL-1
Tunnel structures built using the cut-and-cover method
Tunnel formwork used in cut-and-cover construc-
tion should have large influence widths, only a
small number of wall-ties, and be easy to reposi-
tion.
Required product features:
● high permitted loads
● ease of formwork operation
● minimal erection work
Waling system SL-1 T16
The special hole-grid on the Multi-purpose walings
SL-1 WU16 gives them a high degree of versatility.
They can be used with Waling connectors SL-1 to
make rentable, flexurally rigid joints in straight wall
formwork.
Form-tie system 20.0
The high load-bearing capacity of the Form-tie sys-
tem 20.0 means that far fewer wall-ties are needed.
Operational steps after pouring
With a combination of the Lowering shoe SL-1 T16
and Spindle struts SL-1 T16, generous striking-dis-
tances can be obtained quickly, even on walls.
Striking formwork from walls
➤ Working from the ground, take out the bottom
rows of form-ties.
➤ Take out the form-ties from the top rows of ties.
These form-tie locations can be reached from the
platforms.
➤ To take the load off the spindle struts, strike the
wedge of the lowering shoe with a hammer.
➤ Pull the Fastening pins T16 out of the telescopic
spindle struts.
➤ Retract the wall formwork by means of the
hydraulic cylinder.
Lowering the heavy-duty supporting units
➤ See "Lowering the heavy-duty supporting units"
Repositioning the heavy-duty supporting units
➤ See "Repositioning using heavy-duty rollers" or
"Repositioning using Chain travelling unit SL-1"
A Multi-purpose waling SL-1 WU16
B Waling connector SL-1 WU16 0.75m
C Connecting pin SL-1 D32 100 with Spring cotter 6mm
A Top 50 element
B Tie-rod 20.0
C Super-plate 20.0 B
D Plastic tube 26mm
E Universal cone 26mm
Tie-rod 20.0mm:
Permitted capacity with safety factor of 1.6: 220 kN
Permitted capacity to DIN 18216: 150 kN
9759-278-02
A
B
C
9759-294-01
B
D
A
E
C
9759-254-02