Hello, everyone.
This is Enta.
This is the Moldam construction method, which has been in high demand recently.
What kinds of stone walls collapse?
We get inquiries like that, but it usually falls apart lol
There are many different types of stone masonry out there, and in some cases, the backfill isn't properly filled with concrete, or
Stone walls that already have cracks in them have begun to crumble and will collapse during heavy rain or similar conditions.
Even if the gaps in the stone wall are tightly packed, its ability to hold back soil is very limited to begin with.
I think it would be better if the residential units on top were as light as they used to be.
However, since modern homes are very heavy, the force is absorbed by the masonry and other structural elements.
In particular, when soil becomes saturated during heavy rain, it can collapse all at once.
Since the Moldam method is strictly a surface treatment, it creates continuity among individual stones that are on the verge of crumbling, thereby
This is a construction method designed to minimize the overall impact.
However, it is also true that it cannot fully withstand the high earth pressure exerted by water-saturated soil.
To do that, you need to remove the water, which is the cause. (In cases where the collapse is caused by water)
Drainage drilling is an effective way to maximize the effectiveness of the Mouldam method.
Lately, I’ve been wondering—why don’t people install drains when they build a house?
You drive piles all the time, don't you?
I think that's a good idea, too.
But I can’t help thinking that, if we’re going to do this anyway, we might as well install a drainage system (subsurface drainage) under the house.
It's just a simple drawing, but this is the general idea.
The light blue pipe with holes in it is the underground drainage pipe.
When building a house, following this method will minimize the earth pressure acting on the stone wall.
Especially during heavy rain, water and soil can push against the stone wall!
Water is the cause of earth pressure.
Simply removing that will make the ground much more stable.
What's more, it's effective against liquefaction.
Since installing culverts in just a few places can be quite effective, I think it’s a good idea to include them in the foundation when building a house.
This is especially true for those building homes on high ground.
By the way, since it has become increasingly common lately to drill drainage boreholes in embankments and the like,
It seems people are starting to realize just how important it is to drain water!
By the way, Ishio-kun, a construction-themed YouTuber, was explaining the Moldam method lol.
Be sure to check it out^^
See you later.
