{"id":4022,"date":"2017-07-27T08:00:45","date_gmt":"2017-07-26T23:00:45","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=4022"},"modified":"2026-05-15T20:08:48","modified_gmt":"2026-05-15T11:08:48","slug":"infrastructure-with-a-100-year-lifespan","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/lifespan-100years-infrastructure\/","title":{"rendered":"The Era of 100-Year Service Life and Employee Growth | Human Resource Development at Slope Construction Company"},"content":{"rendered":"

Hello, everyone.<\/p>\n

This is Enta.<\/p>\n

\"\"<\/p>\n

Last night, the whole staff went out for yakiniku!<\/p>\n

Everyone's doing their best!<\/span><\/strong><\/span><\/p>\n

We decided to go out and have some fun for a change, so we went.<\/p>\n

What makes me happy is that I\u2019m constantly amazed by how much our young employees have grown.<\/p>\n

That young guy who joined a few months ago is getting bigger and bigger.<\/p>\n

Since I almost never get to work with them on site, I\u2019m always happy to see them when we meet after a long time.<\/p>\n

It really makes you realize how they\u2019re becoming a valuable asset.<\/p>\n

And the foremen are starting to act like foremen.<\/p>\n

You can really see how much he cares for the younger guys and how they're growing together.<\/p>\n

I'm really happy.<\/p>\n

Since there are a lot of younger people here, they really dig in. As for those of us in our 40s and older\u2014myself included\u2014a little bit here and there is fine lol.<\/p>\n

If I eat at the same time as them, my stomach starts acting up late at night... lol<\/p>\n

I look forward to seeing how they grow in the future.<\/p>\n

But he sure does eat a lot!<\/p>\n

\n

But that's beside the point.<\/p>\n

It finally made the news the other day!<\/p>\n

A 100-year safe service life for bridges<\/h3>\n

The other day, the Ministry of Land, Infrastructure, Transport and Tourism set the service life of bridges at 100 years, andRevise Design Standards<\/span><\/strong>I did.<\/p>\n

Try searching Google for \u201c100-year service life of bridges.\u201d<\/p>\n

This trend has been around for a few years, but it\u2019s finally here.<\/p>\n

A hundred years is pretty amazing, isn't it?<\/p>\n

It's been 50 years so far.<\/p>\n

Current Status of Bridges and Bridge Piers<\/h3>\n

Currently, bridges and other structures are deteriorating rapidly, and the volume of inspections\u2014such as those of bridge piers\u2014is enormous each year.<\/p>\n

Most of them have been in service for more than 40 years.<\/p>\n

\"\"<\/p>\n

It is said that there are 700,000 bridge piers over 2 meters tall, and the Ministry of Land, Infrastructure, Transport and Tourism requires that they be inspected once every five years.<\/p>\n

Well, I can't check it right now, lol.<\/p>\n

What's more, it's the municipalities that are responsible for maintaining bridges and other infrastructure.<\/p>\n

Since it's a rural area that's already short on staff, they can only inspect the main areas, right?<\/p>\n

There probably aren't many inspectors, either.<\/p>\n

Technical Standards for Bridges, Elevated Roads, and Other Structures<\/span><\/span><\/strong><\/span><\/a><\/p>\n

Next Steps<\/h3>\n

Naturally, bridge inspections will gradually shift to drone inspections.<\/p>\n

I can fully understand why the Ministry of Land, Infrastructure, Transport and Tourism launched i-Construction to automate that process.<\/p>\n

\"\"<\/p>\n

However, there are many other things that come up as well.<\/p>\n

First of all, we need to make the bridges more durable. After all, they\u2019re supposed to last 100 years.<\/p>\n

This will lead to an increase in life-cycle costs.<\/p>\n

This goes without saying, but it does have at least some impact on us slope engineers as well.<\/p>\n

For example, what about bridges on major roads?<\/p>\n

There's definitely a section with a slope on the side, right?<\/p>\n

That bridge is supposed to last 100 years, but the embankment only lasts 50 years??<\/p>\n

No way!!<\/p>\n

There isn't, is there? lol<\/p>\n

The embankments will also reach the 100-year mark before long.<\/p>\n

It probably won\u2019t actually last 100 years, lol, but construction methods will shift toward those that take into account slope reinforcement and life-cycle costs.<\/p>\n

Should we repair it or rebuild it?<\/h3>\n

It costs money to demolish buildings in Japan.<\/p>\n

Even in standard structures, the concrete strength is 18 kN or higher.<\/p>\n

Since tearing it down would cost an astronomical amount of money, people will likely end up opting for repairs or expansions.<\/p>\n

Unless it's really bad, I don't think there's any need to redo it.<\/p>\n

Actually, I don't have any information on that, so I don't know.<\/p>\n

However, as far as existing slopes are concerned, repair methods are currently widely used.<\/p>\n

We'll likely see more construction methods like that in the future.<\/p>\n

I'm looking forward to it.<\/p>\n

I\u2019d like to try making all sorts of things at home, too.<\/p>\n

 <\/p>\n

See you later.<\/p>","protected":false},"excerpt":{"rendered":"

Hello, everyone. This is Enta. Last night, all of our employees went out for yakiniku! Everyone\u2019s working so hard! We decided to go out and have some fun for a change. What makes me especially happy is how much the younger employees have grown\u2014it really amazes me. One of the younger employees who joined just a few months ago has really\u2026<\/p>","protected":false},"author":2,"featured_media":4025,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[43,1],"tags":[186,437,561,562,563,564,565],"class_list":["post-4022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-issues","category-others","tag-i-construction","tag-437","tag-561","tag-562","tag-563","tag-564","tag-565"],"acf":[],"yoast_head":"\n\u4f9b\u7528\u671f\u9593100\u5e74\u6642\u4ee3\u3068\u793e\u54e1\u306e\u6210\u9577\uff5c\u6cd5\u9762\u5c4b\u306e\u4eba\u6750\u80b2\u6210 - 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