In Chuo-ku, we release Chuo-ku ground information system from April 1, 2017.
http://jiban.city.chuo.lg.jp/chuojiban/useful.html
The Chuo-ku Ground Information System is a compilation of information on the ground (boring survey) in Chuo-ku on a map, which can be used as a reference material to grasp the ground conditions of homes and companies, and is a Tokyo that loves civil engineering, architecture, and development. It is a very fun system for Dumbo.
You can select the location you want to check on the map.
On the map page, the point where the boring data is located is shown in blue circles, and when selected, it turns to red circles, showing multiple data at that point.
If you select one of them, you will see the column diagram data of boring.
The data shown here is the data of Chuo-ku government office, which has a rebuilding plan. It seems that the N value of 50 or more suitable for the support layer is deeper than 17m, and it is necessary to drive the pile to the support layer more than the pile diameter, so a pile length close to 20m will be required.
On the map page, in addition to calculating distance and area and searching for addresses, you can overlap land condition maps and altitude maps by color, and change them to aerial photographs.
This is a land condition map, and the part shown in yellow is a natural embankment, the pink is a landfill, and Chuo-ku corresponds to the area and landfill that was called Edo Maejima before the Edo period.
Why don't you check the ground information of places related to yourself?
