I def agree as well with working the engineers. I have a few friends who are civil engineers as well, i'm also two years into my associates in civil. They really need to get these kids that are straight out of school onto some jobsites and watch the operations.
Looking for Ideas for an excavation
I am getting ready to bury a 10,500 gal water tank for a fire suppression system. The tank is going in the ground 9' from an existing building, the top of the footing is 5'8" below grade(1 foot footing). The dimension of the tank is 13'2" top to bottom, with either 12" of stone under it or on undisturbed soil, there is a 4' round sump station located 5-10' away from it/building that is 4'8" deeper than the bottom of the tank.
My question is this: the tank was supposed to go in back in the early part of sept when the water table was much lower, but the engineers and precast co have been redesigning if for the last month and a half and the water table is up substantially, finish grade on top of the tank is 410' and the water table is at 394.
I need to make sure that the building does not shift but with the water up I am worried about the 45* slope leading up to the existing footing is going to undermine. Driving sheet piling will cost 22K, I was going to underpin the corner originally, but with the water up that doesn't seem like a good idea. I obviously will de water and drop the table some, but am nervous about the proximity of the building. It is up to me for BMP to design the support.
Any ideas?
to add insult to injury the engineers wont answer the questin how much ground cover over the tank.:laughing: I guess it is not that important
Thanks in advance.
John
My question is this: the tank was supposed to go in back in the early part of sept when the water table was much lower, but the engineers and precast co have been redesigning if for the last month and a half and the water table is up substantially, finish grade on top of the tank is 410' and the water table is at 394.
I need to make sure that the building does not shift but with the water up I am worried about the 45* slope leading up to the existing footing is going to undermine. Driving sheet piling will cost 22K, I was going to underpin the corner originally, but with the water up that doesn't seem like a good idea. I obviously will de water and drop the table some, but am nervous about the proximity of the building. It is up to me for BMP to design the support.
Any ideas?
to add insult to injury the engineers wont answer the questin how much ground cover over the tank.:laughing: I guess it is not that important
Thanks in advance.
John
21 - 27 of 27 Posts
Update
Update,
This sucker is FINALLY going in the ground today, after a 2 month fight over the change order to build the tank to code and who was going to pay it(I won) I get to put this thing to rest today.:clap: This is the last bit of UG on the project from hell. I will post pictures later of the dig and the tank. Water was only an issue on the last 2 feet. I ended up using a 10-16ft trench box for the deepest portion, and placing a sump in the low corner of the hole with a 2" submersible pump going 24/day. The tank got reconfigured to be done in two parts: one 8'x16'x11' and one 6ft round wet well 17' deep, 12" blue brute connecting the two. Had to pull 3 ft of frost over the weekend to start the dig on monday, used a Thawsall and as Dayexco would say it worked slicker then snot on a doorknob.
Update,
This sucker is FINALLY going in the ground today, after a 2 month fight over the change order to build the tank to code and who was going to pay it(I won) I get to put this thing to rest today.:clap: This is the last bit of UG on the project from hell. I will post pictures later of the dig and the tank. Water was only an issue on the last 2 feet. I ended up using a 10-16ft trench box for the deepest portion, and placing a sump in the low corner of the hole with a 2" submersible pump going 24/day. The tank got reconfigured to be done in two parts: one 8'x16'x11' and one 6ft round wet well 17' deep, 12" blue brute connecting the two. Had to pull 3 ft of frost over the weekend to start the dig on monday, used a Thawsall and as Dayexco would say it worked slicker then snot on a doorknob.
Proect idea
Please I need the house idea to design a sewage disposal system in a water logged area, where the groud water table is at 1.2 meters to the surface, the component includes septic tank, soak away and check tanks
Please I need the house idea to design a sewage disposal system in a water logged area, where the groud water table is at 1.2 meters to the surface, the component includes septic tank, soak away and check tanks
huh? your profile says you're an engineer?Please I need the house idea to design a sewage disposal system in a water logged area, where the groud water table is at 1.2 meters to the surface, the component includes septic tank, soak away and check tanks
Right, but if you get the guys that build these things in the field to tell you how to do them, you get all the info you need. No work, send a big bill, everyone wins :whistlinghuh? your profile says you're an engineer?
i'm guessing this is a HO that wants to go to the rental yard this wknd...get some equipment, stop by at home depot, grab some material, and do it himself.
What is a soak away? I'm assuming your not from the U.S.Posted by tosinelect
Please I need the house idea to design a sewage disposal system in a water logged area, where the groud water table is at 1.2 meters to the surface, the component includes septic tank, soak away and check tanks
21 - 27 of 27 Posts
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