Hyperbolic rheological model with shear stress limit for acrylamide polymer modified bentonite drilling muds

Experimental study on performance of geosynthetic-reinforced soil model walls on rigid foundations subjected to static footing loading

1. Formation of Natural Soil Deposits. 2. Engineering Properties of Soils. 3. Soil Exploration. 4. Soil Compaction and Stabilization. 5. Water in Soil. 6. Stress Distribution in Soil. 7. Consolidation of Soil and Settlement of Structures. 8. Shear Strength of Soil. 9. Shallow Foundations. 10. Pile Foundations. 11. Drilled Caissons. 12. Lateral Earth Pressure. 13. Retaining Structures. 14. Stability Analysis of Slopes. Answers to Selected Problems. Appendix: Conversion Factors. Index.

Soils and Foundations

https://upcommons.upc.edu/bitstream/handle/2099/16659/IP_S8_1_Bouazza_Extended-Abstracts%20SEG2015.pdf;sequence=1

An experimental investigation of the influence of intermittent and continuous operating modes on the thermal behaviour of a full scale geothermal energy pile

Numerical studies of anchored sheet pile wall behavior constructed in cut and fill conditions

Conventional methods used for the design of anchored sheet pile walls are based on the lateral force and moment equilibrium of active and passive earth pressures and anchor force. Although it has been known for decades that the stress concentration occurs around the anchor level because of the restricted wall movements, this stress concentration is not considered in determining the lateral earth pressures. A parametric study using conventional and numerical methods was performed to investigate the behavior of single-level anchored sheet pile walls, and the lateral earth pressures, wall bending moments, and anchor forces were analyzed. The study results indicate that the conventional methods for the conditions considered and cases studied overestimate the wall bending moments, whereas the anchor forces are underestimated. New lateral earth pressure coefficients that consider the stress concentration around the anchor level were developed and proposed to be used in the design of single-level anchore...

Lateral Earth Pressure Coefficients for Anchored Sheet Pile Walls

Two types of polyethylene are used for pipeline systems: medium density polyethylene and high density polyethylene. A polyethylene pipe, being a thermoplastic, softens on heating and hardens on cooling. Because of the viscoelastic nature of polyethylene, stresses decrease under applied constant strain and strains increase under applied constant stress. To account for the complex behavior of polyethylene pipe, laboratory tests were performed to study its thermal and mechanical properties. This paper presents the test results, findings, and design recommendations for polyethylene pipe properties. The tests were performed in a temperature controlled room, where properties were investigated for thermal variations expected in the field. Two types of tests were performed: stress relaxation tests and temperature ramp tests. Test methods and properties are summarized for relaxation modulus, instantaneous modulus, Poisson’s ratio, thermal expansion/contraction coefficient, and stress relaxation rates.

Ömer Bilgin

Papers

Numerical studies of anchored sheet pile wall behavior constructed in cut and fill conditions

Lateral Earth Pressure Coefficients for Anchored Sheet Pile Walls

Thermal and Mechanical Properties of Polyethylene Pipes

Failure mechanisms governing reinforcement length of geogrid reinforced soil retaining walls

Geotechnical Properties of Marine and Deltaic Soft Clays