Contractor is blind pouring a concrete tunnel liner (un-reinforced) in approximate 40' sections. It is a 24' diameter (finished diameter) and walls are a minimum of 18" thick (greater in a majority of the locations).
NOTE: There is almost no water infiltration into the tunnel and any that is...
Ishvaaag,
I truly appreciate your effort... unfortunately without MathCAD I cannot view the files. =(
On the embedment of the piling
The only reference I have seen in regards to the embedment depth (for clays) has been stated to use:
B/2 - in the USS Sheet piling manual (USSSPM)
and
Up to B/2 -...
Ishvaaag,
Thank you, however I am not sure if I clearly understand.
I would love to see the mathcad worksheets, however we do not have mathcad so I am unsure if I would be able to view them properly (but I am willing to give it a try)!
I am newer to cofferdam design (essentially my second one)...
I am working on a braced cofferdam.
It retains a stratified soil that turns into a clay till at the base (this layer is fairly deep).
My ultimate goal is to determine how deep I need to go with the sheet piling for stability during construction and of course to avoid heave at the bottom of the...
I am working on a Temporary sheet piling retention system (TSRS) for staged construction and have reached the deadman design. This particular system needs a tie-back.
My question is:
Is there any reference or guide that assists in this design in regards to the minimum requirements? I am not...
One item however..
I know that I already thanked everyone for the input, which was extremely helpful...
DWHA, you stated you have done a lot of temporary supports for contractors such as this?... How do you establish/are there any guides to make this determination for those of us (me) who do...
Kikflip - the column is a W14x90 and is for the partial demolition (staged construction) of a bridge. It is to be positioned under a cantilevered portion of a pier (I've attached a sketch). It isn't for erection as much as for mainaining traffic during...
I intend on calling for welding the angles to the base plate, however the purpose of this column it to act as a temporary support during staged construction. Therefore, it needs to be easily (comparitively speaking) assembled and dis-assembled.
A temporary support used on a previous project by...
I am new(er) in the design realm and am working on a column design. I have the column designed and the base plate established; my question is ...
How do I go about designing the angles, anchor bolts and welds I want to install at the top and bottom of my column to attach them to the plates...
Thank you PEInc,
THis is a single wall. It is being utilized for soil retention during a culvert extension.
I have actually figured the wall with no water behind it (for the reasons you have stated above). I utilized both a "c" value and a phi, delta, Ka & Kp values.
THe soil borings I have...
I will provide a little info and then follow with my question..
I have a job that requires a temporary sheet pile retaining wall (possibly a tied-back).
My soil is generaly a light clayey silt with traces of fine sand and gravel (For the most part). I have originally assumed there are cohesive...
Thank you for your feedback.
To be more detailed here is what I have.
I have an existing bridge and the wingwalls are failing. The owner (state) would like to obviously replace the wingwalls while maintaining the structure and it was suggested that they could be replaced with permanent sheet...
I am new to the design side of things and was just assigned a permanent sheet piling wing-wall design, but I do not have any soil information.
It is at all possible to design it? My first thought is no, but seeing as how I have limited experience in this arena (of design) I am hoping someone...
