Recent content by amlinerrichard

Miningman, I didn't realize that only mining people understood that only miners can send a possibility of a fix.

I thought you said the tunnel was about 11 ft. tall and 9 ft. wide.

You may be able to slip line the tunnel with a pipe that is not attacked by the chlorine. Then pressure grout the annular space between the pipe and old tunnel.

What are they using the tunnel for? Can you expose one end of the tunnel?

The HDPE manhole rings we used were made in Stacy, MN. Do a search on them. There may be a local company in your neck of the woods.

Contact the Kansas board that regulates PE licenses. They will spell out exactly what you need.

There are a few "rubberized" inserts to seal the adjusting rings, both inside MH and outside. That said find out what the Waste water people use on the MH's.

If the main pressure is 170 psi, the fixtures in building hooked up to it would be blowing fixtures all over. The main is probably 10 feet deep so the pressure at the hydrant may be 5 psi less due to the lift to the hydrant.

Look for a couple hog or beef farms near your area. check with them to see if they would take the seaweed. then they can supply the trailer? to haul it back to there feedlot. Should be cheaper to drag the weeds to a spot that they can get to. You may have to help with the loading.

Standard test for pressure lines is 2 times the working pressure plus 50 psi. Leakage is less than 20 gal per internal inch diameter per day

Could you post a drawing of the Grit tank?

What is in the pipe? max pressure?

shotcrete is a sprayed on concrete. Cement sand and pea rock. Call a couple contractors that do that work.

Have you looked at "microtunneling"? What is the project? Pipelines?

Attach a curved steel angle all around the HDPE. Shotcrete the angle to the block. Maybe add a few #4 rebar before the shotcrete.