Challenging bridge demolition

DEMOLITION and blasting experts Philipp Halter of Berlin, Germany, faced a challenging job: in just 48 hours it had to demolish the southern section of the Spandau Dam Bridge crossing the A 100. The efficient interaction of Atlas Copco hydraulic breakers and hydraulic CombiCutters, mounted on seven Volvo excavators, is said to have played a crucial role after following a carefully planned schedule. During Friday night a bed of sand was placed under the bridge to allow the girders and reinforcements torn dow
March 2, 2012 Read time: 2 mins
DEMOLITION and blasting experts 1215 Philipp Halter of Berlin, Germany, faced a challenging job: in just 48 hours it had to demolish the southern section of the Spandau Dam Bridge crossing the A 100.

The efficient interaction of 161 Atlas Copco hydraulic breakers and hydraulic CombiCutters, mounted on seven 2394 Volvo excavators, is said to have played a crucial role after following a carefully planned schedule. During Friday night a bed of sand was placed under the bridge to allow the girders and reinforcements torn down by the Atlas Copco CombiCutters to be safely collected
and transported.
 
Three 283 MB 1700 hydraulic breakers (each weighing 1,700kg and suitable for carriers in the 19-32tonne weight class) began with preparations on the bridge foundations. An SB 302 was used for the less demanding preparatory and finishing work, such as in narrow places. The light hydraulic breaker weighs 304kg and is suitable for carriers in the 4.5-9tonne weight class.

The main part of the work was handled by two Atlas Copco hydraulic CombiCutters (a CC 1700 U and a CC 2500 U) equipped with 'Universal' jaws, which crushed the concrete and cut the strong rebar of the bridge in one go. The cutters weigh 1,680kg and 2640kg, respectively. The roadblocks were removed at 5am on Monday, according to schedule, making way for one of the most significant roadwork projects in the capital on the banks of the River Spree.
Earthmoving & soil compaction

For more information on companies in this article

Related Content

  • Giving credence for Clearwater revival
    October 29, 2018
    The Minnesota Highway 24 Bridge spanning the Mississippi River at Clearwater is not a major structure. However, it does play a key role as the 376.4m-long bridge links US Highway 10 and Interstate 94. These routes run parallel on opposite sides of the Mississippi River and connect St Cloud to Minneapolis. There was a need to replace the old bridge, built in the 1950s, as it has been designated functionally obsolete, while it featured a restricted maximum load of 36.3tonnes. The price tag to demolish and
    Read More
  • Doka delivers cantilevering for super-slim piers at Lahntal Bridge
    October 21, 2016
    Doka’s formwork expertise is currently in demand during the construction of one of the busiest motorway viaducts in Germany. The 400m six-lane Lahntal Bridge in Limburg dates from the early 1960s. Every day about 100,000 vehicles cross the bridge that spans the valley of the River Lahn. But traffic loads have increased sharply, so a new bridge is being built sited just a few metres west of the old viaduct. The new Lahntal viaduct will measure a massive 43.5m in width, enabling eight lanes plus hard shoul
    Read More
  • Strabag on the edge with a Dynapac DF145CS paver from Atlas Copco
    June 10, 2015
    When asphalting the inside of the newly raised edge of a water dam, Austrian road construction company Strabag faced a challenge. The paver had to be operated at an angle of between 34-41 degrees with material fed into the hopper from a ledge just 2.8m wide on the edge of the dam. The Waldeck 2 kidney-shaped hydroelectric station is located on a mountaintop about 500m above sea level on Lake Eder in central Germany. The dam, owned by global energy group E.ON, has a perimeter of about 3km. An important pa
    Read More
  • Atlas Copco introduces three powerful hydraulic breakers
    April 10, 2015
    Atlas Copco has boosted its breaker range with the addition of three new models. These breakers form part of the essential case-mounted (EC) range and are designed to fit 22- 49tonne carriers. The heavy range breakers are the EC 140 T, EC 150 T and EC 155 T. As with other models in this range, the new units are said to offer fast return on investment due to factors such as simplifed maintenance and operation. The firm claims that these EC breakers generate powerful forces inside a compact body while bein
    Read More

Highlighted Content