Report on the survey results of the cylindrical frame manufacturing company

East Nippon Expressway Co., Ltd. /Central Japan Expressway Co., Ltd./West Japan Expressway Co., Ltd. (hereinafter NEXCO3) conducted a survey on cylindrical frame manufacturing companies other than Kurimoto Iron Works Co., Ltd. I will inform you about the result.

The following are the results of a survey of the following seven cylindrical frame manufacturing companies.

Regarding the safety of Expressway, as announced on November 29, we have conducted an emergency inspection on all concrete hollow slab bridges that use cylindrical formwork, and confirmed that they have not been altered.

The following responses were received regarding the test and plate thickness.

• At least for the cylindrical frame test reports that were delivered after 2000, in addition to the test dates, test locations, and construction sites that were conducted in the past, it was found that the test figures were rewritten and submitted.
• 板厚の改ざんはありませんでした。

There was a reply that there was no test or falsification of the plate thickness.

There was a reply that there was no test or falsification of the plate thickness.

There was a reply that there was no test or falsification of the plate thickness.

It was closed 7 years ago, and it was answered that the test results and other materials are not saved.

There was a reply that there was no test or falsification of the plate thickness.

There was a reply that there was no test or falsification of the plate thickness.