slope stabilty of sides of canal in clay
slope stabilty of sides of canal in clay
(OP)
I want to the check slope stability of canal section which is excavated in expansive clay. At present soil profile shows stiff to hard clay but after excavation soil will be loosened up and shear strength will be reduced when water will flow throught it, as water will enter in pores and develops pore water presuure (in submerged case). I have soil parameters for present stage but no exact corelation for reductions in cohesion and friction once it is in submerged state. Another concern is that canal have a daily fluctions of abot 10-12 m in water level (maximum canal height is 16 m approx), I cannot provide lining to canal. Also available software with me does not take care of sudden drawdown case (in that case water will be present in pores and starts flowing back to u/s and thus add to driving moment but due to pore water reduced shear strength of soil is experienced) which may be experienced once canal works for a year or so. I have some literatures for methodology and principles but its not possible to check it mannually, please suggest me software which takes care of long term stability of side slope in clay under sudden drawdown case (which is expected the worse case).
RE: slope stabilty of sides of canal in clay
You may want to look at fully softened shear strength for long term static conditions.
RE: slope stabilty of sides of canal in clay
f-d
¡papá gordo ain't no madre flaca!
RE: slope stabilty of sides of canal in clay
(mr fattdad) i have borebog data for the same site and same place where i am going to construct my canal and water table is found more than 7-8 m deep so pheratic surface is not at top.
RE: slope stabilty of sides of canal in clay
RE: slope stabilty of sides of canal in clay
Not trying to stir trouble, but. . .
f-d
¡papá gordo ain't no madre flaca!
RE: slope stabilty of sides of canal in clay
My Internet search on Google shows they have lists of offices as well as a "contact us" page. Asking a few questions and you may be directed to some useful help. They have many canals in south-western states.
I once knew one of their engineers describe him and his buddies sitting on the bank of a canal with the slope paving all destroyed by expansive clay. They know about those things from experience.
RE: slope stabilty of sides of canal in clay
(fattdad) yes we had piezometer reading for 4 months and shows water table approx. 6 m deep.
RE: slope stabilty of sides of canal in clay
Hope this helps. I've been recently learning more on this through a project I'm working on for my DOT.
f-d
¡papá gordo ain't no madre flaca!
RE: slope stabilty of sides of canal in clay
RE: slope stabilty of sides of canal in clay
Sorry if I missed the bigger picture. . .
f-d
¡papá gordo ain't no madre flaca!