Bang: big bridge blocking boulder broken by blasting

Following a recent earthquake in China, the roads and highways had to be cleared quickly to allow emergency deliveries, as well as general transport. One key bridge was blocked by a massive boulder that had been dislodged by the quake. As the boulder was too large to move using the excavators or bulldozers that the bridge could support, a decision was made to use blasting instead to clear the path. A drilling rig was brought into place and this machine bored a blasthole into the errant boulder, with the hol
April 24, 2013 Read time: 1 min
Following a recent earthquake in China, the roads and highways had to be cleared quickly to allow emergency deliveries, as well as general transport. One key bridge was blocked by a massive boulder that had been dislodged by the quake. As the boulder was too large to move using the excavators or bulldozers that the bridge could support, a decision was made to use blasting instead to clear the path. A drilling rig was brought into place and this machine bored a blasthole into the errant boulder, with the hole then being charged with conventional explosives. The blast then broke the boulder into pieces small enough for lighter machinery to move out of the way, allowing the bridge to be reopened to traffic.

Related Content

  • Temporary bridge replacement in the US
    July 2, 2019
    A temporary bridge structure provided by Acrow Bridge is maintaining traffic flow for a key crossing in Vermont. The bascule bridge is allowing both vehicular and vessel traffic to pass during the reconstruction work to the North Hero-Grand Isle Drawbridge in Vermont. The US$60 million project involves replacing the historic twin leaf bascule bridge on Lake Champlain. This modular steel bascule bridge is allowing transport to continue to and from the Lake Champlain island towns of North Hero and Grand Isl
    Read More
  • Develop the Silk Roads, boost economic growth
    April 12, 2012
    Tony Pearce, honorary life member and former director-general of IRF Geneva, recalls the history of the Silk Roads, highlights their continued economic relevance and introduces IRF's active long-term commitment to their rehabilitation.
    Read More
  • Austria's new tunnel meets safety regulations
    July 13, 2012
    New safety regulations and high traffic volumes require new tunnel construction all across Europe. Mike Woof reports Anew highway tunnel now being built in Austria will boost traffic volumes and safety standards on a key European route. The existing Pfänder Tunnel lies close to Austria's borders with Germany and Switzerland and carries a heavy traffic volume, so a new parallel tunnel is under construction to help spread this load, increasing capacity as well as safety. Stringent tunnel safety standards have
    Read More
  • Clever approach to reducing bridge vibrations
    November 14, 2013
    Reducing vibrations on a bridge, supplying high-quality binders to emerging countries and helping small and medium players with warm mix, this month’s stories showcase some innovative bitumen technology solutions - Kristina Smith reports The Kessock Bridge in the Highlands of Scotland has become the third bridge in the UK to be resurfaced with Gussasphalt. A dense mastic asphalt containing Nynas Endura N5, a polymer modified binder, Gussasphalt has been designed to have a longer life than standard mastic as
    Read More

Highlighted Content