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MA-Bohrrohr mit Kronen

Rohrschirm für Schildausfahrt

Schnitt Lanzenanordnung unter den Pfeilern - Friedrichswerdersche Kirche Berlin - Injektionslanzen

Friedrichswerdersche Kirche Berlin mit Baugrube
 

   

Select service range Boring and injection equipment Boring-enabled steel sleeve pipe Building structure sealing Cement and solid material injection Computerised recording Construction pit sealing Dust-binding impregnation Elevation injections Gel injections General and specialised drilling Ground stabilisation Injection hoses Injections in tunnel construction Injections underwater Innovations and new developments Power station and dam injections Shotcrete and concrete restoration Tunnel sealing

Boring-enabled steel sleeve pipe

Innovations and new developments

Boring-enabled steel sleeve pipe

(DMI patent no. 10 2008 005 452)
 
Subsidence often takes place due to ground extraction when producing
boreholes for sleeve pipe injections, especially in the vicinity of groundwater
and underneath buildings. DMI has developed a unique boring system for
this eventuality with which it is possible to drill in the sleeve pipes directly
without protective casing. Around five to six work steps are normal for drilling
procedures in accordance with the current state of the art. The DMI system
requires just two work steps and it can be deployed in small spaces. The
engineering office CDM Consulting Berlin evaluated the drilling procedure
and injection on the basis of a test boring operation and compiled a positive
report on it.
 
Informational diagram below:
Benefit: Two work steps
Einbohrfähiges Stahlmanschettenrohr

Pipe shields with boring-enabled sleeve pipe

The current state of the art for pipe shields does not professionally allow for
one-off or repeated grouting via the driven-in valves. The valves fall out
during drilling in or do not close properly.
 
DMI has found a unique solution for this and further developed the patented
DMI steel sleeve pipe for pipe shields that allow for repeated grouting.
  • Drilling in (drawing in) the pipes with drilling jumbo by excavation personnel
  • No ramps for anchor drill necessary
  • Repeated grouting possible
  • Post-grouting possible for sealing purposes, even after excavation
  • ø 76.1 / 88.9 / 101.6 / 114
 

Innovations and new developments

  • Shield exit without entrance pot
  • Self-propelled tunnel scaffolding
  • Boring-enabled steel sleeve pipe
  • ROV - Remotely Operated Vehicle

Benefits:

No ground extraction so lower risk
of subsidence.

Just two work steps instead of five,
which means significantly lower
labour costs.

More precise drilling possible
as a result of displacement drilling.

Boreholes with smaller diameters
possible as the steel sleeve pipe
is also used as a borehole pipe.

Drilling can be performed with a small
device (rotary motor), which means that
use in TBMs and narrow shafts or spaces
is possible.

Simple handling during drilling in.

Grouting can be performed multiple times
unlike with conventional pipe shield
systems.
 

Possible uses:

Pipe shields

Elevation injections

Underpinning

Ground stabilisation
Einbohrf. Manschettenrohr für Rohrschirm
Boring-enabled sleeve pipe for pipe shield
Ringbohrkrone mit eingeklinkter Pilotkrone
Ring drill bit with latched pilot bit
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  • Boring and injection equipment
  • Boring-enabled steel sleeve pipe
  • Building structure sealing
  • Cement and solid material injection
  • Computerised recording
  • Construction pit sealing
  • Dust-binding impregnation
  • Elevation injectionsg
  • Gel injections
  • General and specialised drilling
  • Ground stabilisation
  • Injection hoses
  • Injections in tunnel construction
  • Injections underwater
  • Innovations and new developments
  • Power station and dam injections
  • Shotcrete and concrete restoration
  • Tunnel sealing

DMI Injektionstechnik GmbH

Warmensteinacher Straße 60
12349 Berlin – Germany

Contacts:
Walter Münch – Managing director
Ingolf Schlegel – Managing director
Tobias Stiel – Authorized Officer
Patrick Minski – Construction manager

Tel: +49 30 417 44 23 40
Fax: +49 30 417 44 23 44
E-Mail: info@d-m-i.net

DMI Spezialinjektionen Süd GmbH

Kaistener Straße 33
97450 Arnstein – Germany

Contacts:
Hilmar Neumeier – Managing director
Sebastian Münch – Authorized Officer

Tel: +49 9728 90 70 26 0
Fax: +49 9728 90 70 26 9
E-Mail: info.sued@d-m-i.net

DMI International GmbH

Warmensteinacher Straße 60
12349 Berlin – Germany

Contacts:
Walter Münch – Managing director
Ralph Salomon – Commercial manager
Thorsten Meckes – Construction manager

Tel: +49 30 417 44 23 40
Fax: +49 30 417 44 23 44
E-Mail: info.international@d-m-i.net


DMI Nederland bv Specialistische Injectiewerken

Risseweg 5
6004RM Weert – Nederland

Contacts:
Walter Münch – Managing director
Heinz Golsteijn – Manager Nederland

Telefon: +31 495 78 68 06
E-Mail: info-nl@d-m-i.net

DBS Spezialsanierungen GmbH

Weinbergstraße 37
03149 Forst [Lausitz] – Germany

Contacts:
Dietmar Schneider – Managing director

Tel: +49 3562 69 26 86
E-Mail: info@d-b-s.eu

DMI Geräte GmbH

Warmensteinacher Straße 60
12349 Berlin – Germany

Contacts:
Walter Münch – Managing director
Sebastian Münch – Managing director

Tel: +49 30 417 44 23 40
Fax: +49 30 417 44 23 44
E-Mail: info.geraete@d-m-i.net


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