TOKYO, May 3 (Xinhua) — Japan Railway Construction, Transport and Technology Agency (JRTT) stated Wednesday that Kumagai Gumi, a serious Japanese building firm, issued a false report on concrete check within the building of a Hokkaido Shinkansen tunnel extension.
According to the JRTT, the tunnel for which the false check report was issued is positioned in Abuta District within the northernmost prefecture of Hokkaido, and the size of the tunnel is about 4.2 kilometers.
The company is at the moment investigating how the false report affected the standard of the tunnel and the progress of the venture, it added.
Kumagai Gumi stated on the identical day that they’re conscious of the seriousness of the state of affairs and can take measures to stop comparable incidents from occurring once more.
According to Japanese laws, as a check to verify the power of concrete, its water content material needs to be examined each 50 cubic meters as soon as earlier than and as soon as after pouring into the muse. But the JRTT investigation discovered that Kumagai Gumi has solely carried out the one check earlier than pouring.