Whats the best (and cheapest) way to plaster up sand walls to make sure they don't cave in?
I'm constructing an underground room at the moment and need to decide on a method. I've though about using concrete, but would it stick and if I mix it with sand would it be thick enough to smear onto the walls?
I was told by my father I should build a frame inside using 2x4s and hang chickenwire off them, then mash cement into the wire and against the wall.
How deep underground and how large would you want your new grave to be? If it's really sand, nothing would help to keep it from caving in after a heavier rain (ok, something would - digging the site up and constructing a proper shelter before covering the structure with sand again).
There are special formulations of concrete used in such a scenario, usually referred to as shockrete but chances are you don't have the means of producing it or pumping it. You're probably better off using timber supports but unless you know what you're doing (i.e. old timey mining techniques) there's a good chance you'll kill yourself anyway
Okay, how about stacking sandbags against the wall?
I'd appreciate if someone could give actual advice rather than "LOL ITS A GRAVE".
It's obviously possible, otherwise basements and cellars wouldn't be a thing...
Your dad's idea isn't total shit. Try stucco wire? idk if it really is any different from chicken wire but its what I use with cement.
Don't be an asshat and you shouldn't die... hopefully...
Cellars are built with at least half a foot of reinforced concrete. Unless you plan on digging everything out, pouring a concrete structure capable of withstanding however many feet of sand (which is basically all the weight of solid stone without any of the structural integrity), you might as well stick a headstone on top.
everything is already dug.
Would stair-stepping like this with sandbags filled with 13 parts sand/1 part cement be sufficient enough to prevent cave ins?
No, it needs to be solid, not bags. Use cinder blocks with rebar cores and fill em with concrete.
Better yet, hire a contractor to design it for you. DIY the construction if you want, but you really need to get the structure engineered. This is not something to fuck with or do half assed, you will die if you do.
You need SOLID concrete, reinforced with rebar.
If you make walls out of bags of ANYTHING the weight of the sand and dirt will slowly push them, making the room smaller until they give in and collapse.
For all it seems to be the Mos Eisly of the internet, people on this site always seem to have the same reaction to underground stuff.
And it nearly always indicates that trying to DIY anything underground is gunna kill you.
Personally i would take the advice, get a contractor. If 4chan is worried about you, it's time to re-evaluate some life choices.
>And it nearly always indicates that trying to DIY anything underground is gunna kill you.
When putting thousands of pounds of stuff over your head, it's a good idea to make sure it's done right. Get a contractor, OP. Build a real underground room, then apply cemented, reinforced sand to the inside as decoration.
if you know the materrial and particle size of the soil around you, you can calculate the angle of repose. if your sandbag slope is less then that angle, you might be ok... BUT, its going to have a lot of pore space; expect it to soak up water like a sponge and drain into your structure regardless of the plastering job. you are basically making an artificial aquifer :/
>plaster up sand walls to make sure they don't cave in?
You don't. You need to use something like shotcrete and reinforced supports.
There was an old engineer who i saw get in trouble for keeping his daughter or some girl in an underground basement he built himself for like 18 years or something and having kids with her and stuff.
He built his own though, so look up how he did that and copy his methods
Right, cause everyone only carries liability insurance and the absolute minimum at that. I don't know about you mate but I'd like to get some money back on my car if it gets rekt and it happens to be my fault or the other fucker scampers off/has no insurance.
Or you could just give the DMV a bond but I've never heard of anyone ever doing that.
Engineering is important. Most of all because of the geology. Sand is free draining you know? I assume since the sand is 8ft deep youre not on a hillside. How will you keep the flood of water out? The first time it rains, that basement will flood unless you also build a sump.