At the end of the 1980s, ČSLA introduced a new bridge. MMT (bridge mounted rear) original designation NORMA, was a significantly enlarged version MS (bridge set) and therefore also based on the bridge [ url=/topic/view/72183/] BB[/url] ( Bailey Bridge). The MMT used a similar lattice openable construction and, like the MS, built on an assembly stand and slid out of the obstacle with an auxiliary bracket. MMT used a special hydraulic device for ejection or in an emergency via a winch AV-15 and ground anchors.
Basic technical and tactical data:
3 fields of 45m + up to 3x9m ramps
load capacity 80t at pillar heights up to 16m
possibility to build in water to a depth of 7m with the help of coordinates PMS
bridge deck width 7m + 2x1m sidewalks on the sides
bridge deck surface: plastic concrete (silica sand in epoxy-polyurethane resin)
possibility to build an entire bridge up to 3% slope (practically tested construction of a 270 m long bridge at 3% slope and one field at a slope of 8.4%)
possibility to lift the middle field and use MMT as an overpass
construction speed: 26 hours including 2 hours for necessary earthworks
possibility to build even on muddy bottom thanks to hydrodynamic embedding of supports
possibility of combination with similar sets
Composition of spr:
49 pcs T-815 PR4 with bridge construction and spec. superstructures
3 pcs PMS + 2 boats MO -634 for construction on water
2 pcs AD-28 (low-performance AD-20 were used for the prototype)
1 pcs AV-15
1 pc P V3S GEOS spr. geodetic workplace
The complete spr served the unit in the strength of the company.
The T-815 PR-4 was the chassis itself without a body, which was part of the individual costs. The difference compared to conventional T-815s was the replacement of the suspension with pneumatic bellows and the addition of tires to the vehicle system with a device to regulate them. This allowed the chassis to lower, lift under the appropriate load, lift, fold the load support legs and switch to travel mode.
2 springs of MMT were delivered. The T-815 vehicles in the prototype were outside the above common civilian construction. For the second spr, modifications were made requested by the army: tactical tires with a center. inflation, higher engine power, other cabin glazing, weapon holders, etc.
Source: personal experience of conducting military tests
Basic technical and tactical data:
3 fields of 45m + up to 3x9m ramps
load capacity 80t at pillar heights up to 16m
possibility to build in water to a depth of 7m with the help of coordinates PMS
bridge deck width 7m + 2x1m sidewalks on the sides
bridge deck surface: plastic concrete (silica sand in epoxy-polyurethane resin)
possibility to build an entire bridge up to 3% slope (practically tested construction of a 270 m long bridge at 3% slope and one field at a slope of 8.4%)
possibility to lift the middle field and use MMT as an overpass
construction speed: 26 hours including 2 hours for necessary earthworks
possibility to build even on muddy bottom thanks to hydrodynamic embedding of supports
possibility of combination with similar sets
Composition of spr:
49 pcs T-815 PR4 with bridge construction and spec. superstructures
3 pcs PMS + 2 boats MO -634 for construction on water
2 pcs AD-28 (low-performance AD-20 were used for the prototype)
1 pcs AV-15
1 pc P V3S GEOS spr. geodetic workplace
The complete spr served the unit in the strength of the company.
The T-815 PR-4 was the chassis itself without a body, which was part of the individual costs. The difference compared to conventional T-815s was the replacement of the suspension with pneumatic bellows and the addition of tires to the vehicle system with a device to regulate them. This allowed the chassis to lower, lift under the appropriate load, lift, fold the load support legs and switch to travel mode.
2 springs of MMT were delivered. The T-815 vehicles in the prototype were outside the above common civilian construction. For the second spr, modifications were made requested by the army: tactical tires with a center. inflation, higher engine power, other cabin glazing, weapon holders, etc.
Source: personal experience of conducting military tests
