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Filtering by: Creator Hardy, J. T. (John T.) Remove constraint Creator: Hardy, J. T. (John T.) Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Subject Soil liquefaction Remove constraint Subject: Soil liquefaction

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  • Pore Water Pressure Response in Soil During Tsunami Loading : Numerical Formulation and Experimentation

    Creator:
    Abdollahi, Abbas
    Abstract:
    Tsunami loading can cause sediment instability, which can compromise the structural integrity of coastal buildings and infrastructure. To understand the process by which a tsunami can cause sediment instability, it is necessary to understand how the pore water pressure in the soil changes during tsunami loading. Tsunami run-up causes the...
    Resource Type:
    Dissertation
    Full Text:
    loading shown in Figure 6.31 at t=100 s. . . . 195 6.34 Pore water pressure response of the two

  • Influence of silt size and content on static liquefaction potential of sand

    Creator:
    Monkul, M. Murat
    Abstract:
    Different specimen preparation methods such as moist tamping, dry funnel deposition, slurry deposition, dry air pluviation have been reported in the literature to investigate the undrained behavior of silty sands. Similarly, different means have been used to densify the soils prepared with such methods. However, the influence of the densification...
    Resource Type:
    Dissertation
    Full Text:
    grateful for his help. I want to extend my thanks to the committee members Dr. Michael J. Olsen, Dr

  • Coastal Soil and Structure Behavior during Earthquake-Tsunami Multi-Hazards

    Creator:
    Qiu, Yingqing
    Abstract:
    Coastal multi-hazards, i.e., earthquakes followed by tsunamis, induce severe damage to coastal infrastructure. The multi-hazards can cause soil liquefaction, which is one of the major concerns for evaluating sediments transport potential and structure failure mechanisms. The objectives for this work is threefold. First, to build and validate a soil numerical...
    Resource Type:
    Dissertation
    Full Text:
    times during earth- quake loading and the quiescent period. t = 36 s is at the beginning of earthquake

  • Predicting pore pressure response in in-situ liquefaction studies using controlled blasting

    Creator:
    Eller, James Michael
    Abstract:
    Originally used as a method to densify loose soils, controlled blasting has expanded its applicability to geotechnical engineering by becoming a research tool to physically generate liquefaction for full-scale in-situ tests, ranging from seismic performance of deep foundations to evaluating ground improvement techniques. Current methods used to design the blasting...
    Resource Type:
    Masters Thesis
    Full Text:
    is 4.186 x 106 joules (J) per kilogram (kg) of TNT, with only about 67% of this energy converted

  • Evaluation of ocean wave-induced liquefaction in a large scale wave flume

    Creator:
    Thielen, David Leo
    Abstract:
    Ocean waves propagating over cohesionless seabed deposits produce cyclic shear stresses within the deposit. Under certain conditions these stresses may cause a progressive build-up of pore pressure. Pore pressure accumulation can result in liquefaction or a substantial decrease in the effective stress with attendant large deformations of the seabed deposit....
    Resource Type:
    Masters Thesis
    Full Text:
    this contribution. The author extends thanks to his major professor Dr. T. S. Vinson, and to Dr. W. G

  • Dynamic behavior of silty soils

    Creator:
    Sunitsakul, Jutha
    Abstract:
    The cyclic resistance of predominantly fine-grained soils has received considerable attention following ground and foundation failures at sites underlain by silt-rich soils during recent earthquakes. In several cases substantial ground deformation and reduced bearing capacity of silt soils has been attributed to excess pore pressure generation during cyclic loading. These...
    Resource Type:
    Dissertation
    Full Text:
    cyclic shear stress (t) components appropriate for K0 and sloping ground conditions. The cyclic demand

  • Shear reinforcement effects of discrete columns in liquefiable soils

    Creator:
    Rayamajhi, Deepak
    Abstract:
    Discrete columns, such as stone and soil-cement columns, are often used to improve the liquefaction resistance of loose sandy ground. In particular, stone columns are considered to increase resistance potential by densification, drainage, and reinforcement mechanisms. For silty soil, the shear stress reduction resulting from the reinforcing effect of stiffer...
    Resource Type:
    Dissertation