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Hi I am modeling pipe buried in soil. The pipe is modeled by shell while the soil is modelled by solid element. I want to describe interaction (surface to surface : frictional) between them and my question is: -is this interaction possible in abaqus - I got the following message which I...

Hello I am running simple Monte Carlo Simulations via @Risk using the data below , but I don"t know why I am getting abnormal output results. Input A (Normal Dis): SD= 0.000243 mean = 0.00081 Input B (Normal Dis): SD= 0.03 mean = 0.2 Output = 0.000000615*(Power(0.0000361966 +...

Hello, I am carrying out two-ways ANOVA analysis on different random variables and I need your comments please to make sure that I am (being not statistician or probability guy) not doing an error 1- Should these random variables be normally distributed in order for ANOVA analysis and the...

Can any one guide me to analytical formulas calculating vertical stress distribution in soil underlined by a conceret slab over which a surface load (like traffic loading) is applied. Or formulas to calculate vertical stress in soil under a conceret rigid pavement slab. (Elastic slab resting on...

Can any one guide me to analytical formulas calculating vertical stress distribution in soil underlined by a conceret slab over which a surface load (like traffic) is applied. Or formulas to calculate vertical stress in soil under a rigid pavement slab Thanks

Hello all, My materials is nonlinear elastic with a modulus of elasticity given as function of the mean stress or pressure ( given in table or equation format) . How can I define the modulus of elasticity function in this case..? Do I really need to use USDFLD. I appreciate it if you can detail...

-Can Abaqus model a fabric sheet in plane strain (2D analysis). What element one should use in this case. I do not think we should use truss since truss can take compression. thanks for help

Excavation has been made in big slope with fine grained materials with high groundwater table (seepage)to fix the largte diameter watermain line. Go thing that the slope is highly vegetated and not exposed to mechanical load. Any recommendation on backfill materials around and above the line. I...

Anyone can guide to a reference on Estimating settlement of a dry sandy soil foundation (densification) induced by a driving (by vibration) a nearby (10 m far) pile. Estimating the liquefaction potential of saturated sandy soil as a result of the pile driving/ Can the Peak.Particle.Velocity...

I have a small diameter utility pipeline crossing a small dyke/dam (around 2.5 m height). Dam authority is concerned about erosion potential of the dam body due to this horizontal penetration. Do you recommend anything for mitigation/prevention (of any detremintal effect on the dam due to this...

There is 1 ft diameter hole to be drilled to depth of 50 m ( for insatlling some type of casing)adjacent to a toe of a slope dyke. Since there is concern that this hole maybe a potential for concentrated flow (erosion) if not backfilled properly, it is required that a that backfill should be...

Hi everyone, A buried cased transmittion steel pipeline with dimater of around 1 ft and internatl pressure of around 2100 Kpa experience maximum deflection of 1 in along a 25 m length due to surface loading. How can one know that this deflection is acceptable in terms of servicability/integrity...

If you are performing a stability analysis using for example limit equilibrium method (or limit state analysis) , and you failure surface (mode) giving FOS of 0.7 and another failure surface (mode) giving FOS of 0.9. Which failure will occur first (which mode is more critical) in this case.? I...

We want to move huge amount of soil ( around 2000 cubic m)from over a specific area in a private land and dump those on a different area within the same region. I really appreciate your geotechnical key points/inputs that should be considered in this operation.

Hi Those of u who use AutoPipe software for analysis of buried pipeline. I have simple question: We are monitoring a pipeline by installing a settlement sensors. and we are getting displacements that we wish to apply in Autopipe to get the due stresses. Now is there a way to apply these...

Hello, Does any one know what groundwater BC should be applied on the downstream edge of an earth dam (water existing on the upstream but no water on the downstream side) where phreatic surface exit location can be computed via FLAC correctly. thank u

Hello, Does anyone know any formulas that help in evaluating the potential of driving proccess of piles on adjacent buried steel pipelines. Pipelines are from 2 to 4 inches steel pipelines buried at 3 to 5 ft in very soft soil. The piling of the buliding are made of woood (8 to 12 inches)and...

Are you aware of any geotechnical book or source that gives guidance on cost estimate for various projects in geotechnical engineering.. ? I have finished the preliminary design and caculated the quantities. I just want to survey the operations involved in the project with making sure that I did...

I am trying to transfer results from a model to a new model; i.e the results obtained from the original model will be initial conditions for the second model. Can any body elaborate the steps to do so pls. The manuals are not clear about that ; i.e they say use IMPORT option when For doing the...

Dear all, B bar (pore pressure coefficient) equals to the pore pressure divided by the vertical overburden pressure. It ranges from 0 to 1. It is unity when one assumes that the soil is under undrained state ( e.g, soft soil under staged loading). I am doing staged construction, but I have a...