Is there a rule of thumb if geotech report is 10 yrs old or whatever, it's not reliable anymore?
Assuming no fill is added or any other soil modification.
maxim22,
You were able to approximate that 2 meter water drawn out at sand soil, it will have <5 mm settlement due to change in soil stress.
How did you come up with that <5mm approximation. What formula did you use? What if it's clay soil?
Ive read about fines should not be drawn out and proper filter should be installed. Can I physically see this. There is a portion at the wellpoints where the pipe is transparent and I can see the water being drawn out and it looks "clear" but I'm not experienced enough on this to tell if soil...
I can't find this on ASCE website
"An ASCE manual [3-26] on the side effects of dewatering
discusses settlement, how its potential can be
evaluated, and measures to prevent it."
This inside a plant. There are underground pipelines all over, some are crossing the wellpoints. Above grade are just a bunch of pipe supports, no major or big structure near it.
We (plant) own everything around the excavation so no lawsuit.
I'm thinking as long as the excavation is properly...
Who is the better expert ask about this, a geotech or a hydrologist?
Obviously there is an effect/settlement but difficult to quantify.
What book or study you recommend about this topic?
If excavation is properly shored, I need to determine the effect of lowering water table on surrounding foundation specifically how much settlement are we expecting.
Any good recommendation about this topic. I'm googling this topic also.
I have an excavation that is about 15w'x15L'x10 deep. Dewatering is installed (pipes with pump) to keep water level at bottom of excavation. Water level normally at 4'. There are foundations and structures around the...
3DDave,
I checked the fence inside the plant and there is a hinge at bottom of the gate post below the gate beam.
I don't have to worry about the gate falling down because the beam will prevent it.
I didn't realize there is a matching plug. I will check again later.
I did notice with the much...
I can't bolt using this hinge because the hinge does not rotate. It's the gate post that rotates.
But I get the idea, I'll find something where part of the hinge rotates.
I have a modified chainlink fence (long story why it looks like this, attached).
The bottom of gate is 6' above.
I need to verify if the hinge will not lose friction/clamp force after several years outside.
I don't what the gate to fall and hit someone.
Do you think the hinge I'll be using...
I was able to find 90 degree hinge but it does not lock.
I was told to have in ground pipe lock. I cannot lock in ground (long story).
I need to have a locking mechanism when the gate is open 90 degrees that is not in ground.
Anyone got a recommendation how to lock a chainlink fence gate hinge at 90 degrees.
Our standard gate hinge opens at 180 degrees or 270 degrees.
The hinge does not have to lock, as long as I can lock the gate at 90 degrees.
Maybe an extra hinge or lock that I can add to the gate or a...
I've been asked to do a pre-construction checklist for a site grading/preparation project inside a refinery plant. I've been looking online but can't find a good goby. I'm doing a list of things/activities that needs to be looked at and "checked" before doing construction. Anyone got a goby?
I have an existing elevated slab, 1'-3" thick with reinforcement top and bottom.
I'll be drilling numerous holes for threaded rod hilti epoxied to connect structures (not heavy) on top of it.
I'm not concerned about load/bending stress, I'm more concerned about the effects of drilling numerous...
I have Roarks but not sure what formula to use for this case or how to approach this. Can I assume fixed 4 sides and just calculate the plate thickness but how do I check the stack/cylinder thickness and/or their composite action with plate...
