One of the challenges with construction is determining how your work can and will affect the existing conditions surrounding your job site. That’s why it’s increasingly important to not only perform proper due diligence procedures, but also react to the findings. That, unfortunately, doesn’t always happen and could potentially be what caused a massive sinkhole in Fukuoka, Japan, last week.
Around 5:15am local time, a 98 foot (30m) by 88 foot (27m) section of roadway was completely swallowed by a sinkhole. As crews were working on an underground subway line directly beneath the road, groundwater began to flow into the tunnel, according to the Asahi Shimbun. Shortly after, the road above began to collapse, exposing a flowing sewer line under the pavement. Luckily, no injuries were reported, but hundreds of residents and businesses were without power or gas, as the nearby utilities were compromised. Due to fear of the sinkhole growing, city officials ordered the hole to be filled in later that afternoon.
Perhaps even more astonishing, repairs have been made to all the utilities and the pavement in a week’s time, as the road was opened back up to the public on November 15th. After the hole was filled in, it only took crews 48 hours to repair the utilities and re-pave the roads, according to CNN. The 50 foot (15m) deep hole took roughly 8,100 cubic yards (6,200 cubic meters) of a sand and cement mixture, which the mayor of Fukuoka says is now 30 times stronger than before, reported the Guardian.
The video below was uploaded to Youtube by ODN:
On October 12, tragedy struck at a construction site in New Orleans, when an 18-story under-construction hotel partially collapsed, killing 3. Due to the unstable tower cranes on site, crews have yet to be able to recover 2 of the bodies inside the building.
Tragedy struck in New Orleans over the weekend when an under construction 18-story hotel suddenly collapsed, killing at least 2 with 1 still missing and injuring up to 30 others.
Infrastructure projects can require some pretty massive heavy equipment to perform all necessary tasks, so it’s a great opportunity to get some stunning footage of the machines and workers during the process.
Drones are used for a variety of different tasks on construction sites, like for tracking employees, calculating the volume of on-site stockpiles, or even performing OSHA inspections, but I’ve never actually seen any tools attached to them before. Well, engineers recently strapped a nail gun to one to see if it could potentially perform roof shingle installation.
The most popular method of demolition these days is by implosion, but not always welcome in certain areas or situations. The use of explosives can greatly damage neighboring buildings and spread hazardous materials over a large radius, which is why a cooling tower at the Mülheim-Kärlich power plant in Germany had to be slowly dismantled from the top.
After causing devastation in the Bahamas, Hurricane Dorian worked its way up the U.S. East Coast last week and eventually made its way up to Nova Scotia, Canada as a Category 2 storm. The storm left more than 369,000 without power in the Canadian Region, according to CBC, but also caused a tower crane to buckle and collapse in the city of Halifax.
While placing concrete on the 7th floor of a new hotel in Houston, TX, 16 construction workers were suddenly sent falling to the 6th floor below, sending 9 of them to the hospital, according to local news reports.
As a storm blew through the Dallas, Texas area on Sunday afternoon, a tower crane standing near an occupied apartment building collapsed causing at least one fatality and 6 injuries.