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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 73 for “"Friction angle"”.

  1. Influence of sand friction angle, grout stiffness, and confinement on the behavior of acrylamide and sodium silicate grouted sand

    Foong, Wai JoonThe University of Texas at Austin2021

    … properties, but do not incorporate the soil friction angle, which is also a commonly used soil parameter in geotechnical engineering. Thus, the objective of this study is to investigate whether the friction angle will influence the strength of a grouted soil – particularly 3 sand types of …

    texas Repository record

  2. Effects of Temperature on Residual Shear Strength of Cohesive Soils

    Ung, AidyVirginia Tech2023

    … procedure on temperature-dependent residual friction angle, and (3) temperature effects on residual friction angle of soils. The fall cone tests are used to determine temperature effects on the liquid limit, while a temperature-modified ring shear apparatus is used to evaluate the residual …

    vt Repository record

  3. A comparison of the behavior of intact and Resedimented Boston Blue Clay (BBC)

    House, Robert DonaldMassachusetts Institute of Technology2012

    … stress ratio, preconsolidation pressure and peak friction angle of RBBC were within ranges for intact BBC. Ranges for secant friction angle, swell ratio and undrained strength for intact BBC overlapped and were lower than ranges reported for RBBC. Both intact and RBBC CRS data plotted to the right …

    mit Repository record

  4. DEM Study of a Single Stone Column in a Clayey Stratum

    Santos, Anibal Enrique2024

    … an aggregate pier is defined by its internal friction angle. There are several factors affecting the friction angle of the granular material that include: confining stress, particle shape, relative density and particle distribution (gradation). These factors are not directly considered in the …

    arkansas Repository record

  5. Estudo da resistência ao cisalhamento e densidade relativa das areias e correlações com o SPT

    Pacheco, Edward BarrosUniversidade Federal do Rio de Janeiro1978

    … which permits to obtain the correlation "friction angle" X "relative density", performing an unique serie of shear test at constant density. Finally, in the third part, some existing propositions are analysed to evaluate the relative density and friction angle of sand, starting from the …

    brazil-uerj Repository record

  6. Effective and total stress strength interpretation for silts

    Pena, Bonifacio I. delaVirginia Tech1991

    … done on the test results. The effective stress friction angle were evaluated using the CU triaxial test results. Undrained strength parameters were determined from the CU and UU triaxial test results, and comparison were performed using the undrained strength ratio S<sub>u</sub>/p. Silt samples …

    vt Repository record

  7. Experimental study of shear behaviour of high density polyethylene reinforced sand under triaxial compression

    Wanyama, PaulGeotechnical Engineering Research Group2017

    … strength properties due to these inclusions. The friction angle increased up to a peak value on varying plastic strip length and concentration, beyond which further addition of plastic material led to a reduction in the friction angle. The greatest friction angle was reported at plastic strip …

    cape-town Repository record

  8. The influence of salinity on the mechanical behavior of high plasticity soils

    Fahy, Brian PatrickMassachusetts Institute of Technology2014

    … undrained shear strength and critical state friction angle of GOM El with increasing stress level were observed, corresponding with an increase in the value of KO. An increase in shear strength and critical state friction angle was observed with increasing salinity at a consolidation stress …

    mit Repository record

  9. From nanohardness to strength properties of cohesive-frictional materials : application to shale materials

    Ganneau, Francois P., 1979-Massachusetts Institute of Technology2004

    … extraction of strength properties of cohesive-frictional materials from nanoindentation tests has not been investigated in the same depth. The focus of this thesis is to investigate in depth the link between nanohardness of cohesive-frictional materials and strength properties. To address our …

    mit Repository record

  10. An Investigation into the Effects of Asperities on Geomembrane/Geotextile Interface Shear Characteristics

    Adeleke,DanielDepartment of Civil Engineering2020

    … asperity height at constant asperity density, friction angle increased by 25 %. Also, an average increase of 25 % in the friction angle was observed as asperity density was doubled at constant asperity height. However, the friction angle was not significantly affected by changes in asperity …

    cape-town Repository record

  11. Süreksizliklerin statik ve dinamik koşullardaki kesme dayanımının yapay süreksizlikler yoluyla karşılaştırılması

    Habibzadeh, FarhadFen Bilimleri Enstitüsü2020

    … as well. It was observed that the total friction angle for both loading conditions did not change significantly. On the other hand reductions as much as 50% or higher were observed for the "basic" friction angle for cyclically loaded circumstances compared to the monotonic conditions. In …

    ankara Repository record

  12. Normalized mechanical properties of resedimented Gulf of Mexico clay from Integrated Ocean Drilling Program Expedition Leg 308

    Mazzei, David P. C. (David Peter Clark)Massachusetts Institute of Technology2008

    … than what is expected, according to SHANSEP. Friction angle of the material ranges from approximately 220 to 260. There is not any apparent relationship between Ko and modulus, friction angle or consolidation stress. Reaching end of primary proved to be a difficult task, concluding that it is …

    mit Repository record

  13. Evaluating Performance of Hybrid Geosynthetic-Reinforced Retaining Walls

    Jiang, YanUniversity of Kansas2016

    … of secondary reinforcement, the backfill soil friction, the backfill soil dilation, the backfill soil modulus, the compaction stress, and the foundation compressibility. The parametric study shows that the maximum wall facing deflection decreased with an increase in the primary reinforcement …

    ku Repository record

  14. Terrain parameter estimation and traversability assessment for mobile robots

    Kang, Shinwoo, 1976-Massachusetts Institute of Technology2003

    … terrain parameters, cohesion and internal friction angle, is developed. The method uses onboard rover sensors and is computationally efficient. Terrain parameter estimation is of scientific interest, and can also be useful in predicting rover mobility on rough-terrain. A method to estimate …

    mit Repository record

  15. Comparison of direct shear and triaxial tests for measurement of shear strength of sand

    Rahman, Jamshed, author, Nelson, John D., advisor, Siller, Thomas J., committee member, Mielke, Paul W., committee memberColorado State University. Libraries1991

    … Wykeham Farrance machines gave almost the same friction angle that was higher than the benchmark value by 4 degrees. The friction angle value from the ELE machine was higher by 2.7 degrees while those from Clockhouse machine were lower by 4.5 degrees as compared to the benchmark value.

    colostate Repository record

  16. Geosynthetic Reinforced Soil: Numerical and Mathematical Analysis of Laboratory Triaxial Compression Tests

    Santacruz Reyes, KarlaVirginia Tech2017

    … to incorporate confining pressure dependency of friction angle and dilation parameters, while retaining the constitutive model's ability to represent nonlinear stress-strain response and plastic yield. Procedures to obtain the parameter values from drained triaxial compression tests on soil …

    vt Repository record

  17. Variation Of Geotechnical Strength Properties With Age Of Landfills Accepting Biosolids

    Pinapati, Kishore

    … is observed to decrease with time while the friction angle increases with time. Stability (the factor of safety against failure) of landfill slopes increases with time due to increased effective stresses and increased friction angle, as the organic material decays. This may result in …

    ucf

  18. Comparison and Correction of Multistage Triaxial Tests to Single Stage Triaxial Test for the Rock Mechanical Testing

    Al Salman, Malik Essam Hamzeh EssamUniversity of Houston2015

    … of Young’s modulus, Poisson’s ratio, stiffness, friction angle, and cohesion. We provide a detailed discussion of the techniques and measurements required to correct the MST results to those obtained from SST protocol. A single correction factor is found to relate the MST results to the SST. …

    houston Repository record

  19. Enhancement of Shaft Capacity of Cast-in-Place Piles Using a Hook System

    Abou El Hosn, GhaziCarleton University2015

    … passive inclusions were implemented. Residual friction angle for concrete-sand interface increased from 22 degrees to 29.5 degrees when two hook elements were used at the pile-soil interface. The pile-clay adhesion was also increased from 19 kPa to 34 kPa.

    carleton Repository record

  20. Use of Ultimate Load Theories for Design of Drilled Shaft Sound Wall Foundations

    Helmers, Matthew J.Virginia Tech1997

    … published correlations between blow count and friction angle for sands and gravels can be used to estimate friction angles for the partly saturated silty and clayey soils encountered at the test sites. A spreadsheet program was developed to automate the process of determining design lengths for …

    vt Repository record

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