Now showing items 2701-2720 of 2722

    • Side Load Transfer in Driven and Drilled Piles 

      Michael W. O'Neill (American Society of Civil Engineers, 1983)
      Driven and drilled piles transfer comparable unit loads to over consolidated clays, yet the stresses to which they subject the soil are different. Fullscale load tests of piles of both types in the overconsolidated Beaumont ...
    • Dynamic Lateral Pile‐Group Effects 

      Takaaki Kagawa (American Society of Civil Engineers, 1983)
      Dynamic lateral pile‐group effects are studied parametrically for a linearly elastic soil‐pile‐structure system. The soil layer is assumed homogeneous, and all piles are identical and vertical. Pile‐group responses for the ...
    • Compaction and Related Properties of Retorted Oil Shale 

      Wesley G. Holtz (American Society of Civil Engineers, 1983)
      AS part of a project to demonstrate the feasibility of retorting oil shale by the Paraho vertical retort process, laboratory and field tests were per formed to determine the physical and chemical properties of retorted oil ...
    • Consolidation Curves for Clays 

      Eulalio Juárez‐Badillo; Benito Chen (American Society of Civil Engineers, 1983)
      A general nonlinear differential equation for the one‐dimensional consolidation of saturated plastic soils, taking into account the variations of compressibility and permeability of the soil, is integrated by numerical ...
    • Three‐Dimensional Behavior of Sand with Anisotropic Fabric 

      Hidetoshi Ochiai; Poul V. Lade (American Society of Civil Engineers, 1983)
      The three‐dimensional, drained stress‐strain and strength behavior of Cambria Sand prepared in cubical specimens with cross‐anisotropic fabric was studied using triaxial compression, plane strain, and cubical triaxial tests ...
    • Shear Strength of Clay in Centrifuge Models 

      Michael C. R. Davies; Richard H. G. Parry (American Society of Civil Engineers, 1983)
      Since centrifuge time is expensive it is necessary to keep testing times to a minimum. Where clay forms an important part of the soil model, reasonable drainage periods can only be achieved by using a high permeability ...
    • Mechanisms of Strength for Frozen Sand 

      John M. Ting; R. Torrence Martin; Charles C. Ladd (American Society of Civil Engineers, 1983)
      Various physical mechanisms controlling the strength of frozen sand are proposed, evaluated and quantified by drawing upon an extensive literature survey, unconfined creep data on frozen sand and frozen saturated wetting ...
    • Shallow Land Burial of Low‐Level Radioactive Waste 

      David E. Daniel (American Society of Civil Engineers, 1983)
      Low‐level radioactive waste has been produced since the early 1940's. Most of it has been buried in shallow pits at 11 existing sites. Several of the existing sites have performed poorly. Inability to control flow of surface ...
    • Geotechnical Characterization of Desiccated Clay 

      Larry J. Mahar; Michael W. O'Neill (American Society of Civil Engineers, 1983)
      Conventional testing procedures produce scatter and bias in indicated properties of soils, such as desiccated clays. This paper describes and compares several conventional and nonconventional methods for characterizing the ...
    • Ground Response Curves for Rock Tunnels 

      Edwin T. Brown; John W. Bray; Branko Ladanyi; Evert Hoek (American Society of Civil Engineers, 1983)
      Calculations of support pressure—tunnel convergence relationships, or ground response curves are used to improve understanding or rocksupport interaction and to aid in the dimensioning of tunnel support elements. Methods ...
    • Effect of Creep on Shear Modulus of Clays 

      G. A. Athanasopoulos; F. E. Richart, Jr. (American Society of Civil Engineers, 1983)
      An experimental study using resonant column tests determined the effects of drained shearing creep on the low‐amplitude shear modulus,
    • Effect of Stress Release on Shear Modulus of Clays 

      G. A. Athanasopoulos; F. E. Richart, Jr. (American Society of Civil Engineers, 1983)
      An experimental study using resonant column tests determined the effect of a temporary release of confining pressure (under conditions of no drainage) on the low‐amplitude shear modulus,
    • Dynamic Response and Liquefaction of Earth Dams 

      Tareg Ahmad; Mansouri; John D. Nelson; Erik G. Thompson (American Society of Civil Engineers, 1983)
      A model for predicting the dynamic response and liquefaction of earth structures was developed. The model was based on Biot's theory for the propagation of elastic waves in a porous medium and an empirical relation put ...
    • Nonlinear Torsional Dynamic Response of Footing 

      Robert Henke; F. E. Richart, Jr.; Richard D. Woods (American Society of Civil Engineers, 1983)
      A physical experiment was conducted in which dynamic torsional loadings were applied to a rigid circular model footing resting on a surcharged granular test bed. High amplitudes of strain, such as those encountered in large ...
    • Pore Pressure Development During Cyclic Loading 

      Ching S. Chang; Ching L. Kuo; Ernest T. Selig (American Society of Civil Engineers, 1983)
      A mathematical expression is developed for the relationship between the excess pore pressure buildup in sands during cyclic loading and the normalized number of cycles. This expression is based on the equations proposed ...
    • Increase in SPT <i>N</i>‐Values Due to Displacement Piles 

      Mysore S. Nataraja; Barbara E. Cook (American Society of Civil Engineers, 1983)
      A technique that was used to estimate the safety factor against liquefaction by predicting the increase in SPT N-values due to driving of displacement piles in sand is presented. The prediction method involved applying ...
    • Bearing Capacity of Strip Footing above Void 

      R. L. Baus; M. C. Wang (American Society of Civil Engineers, 1983)
      The bearing capacity behavior of strip footing located above a continuous void in silty clay soil was investigated experimentally and analytically. The experiment was performed in a test tank which contained a compacted ...
    • Borehole Sealing for Underground Waste Storage 

      Roland Pusch (American Society of Civil Engineers, 1983)
      Rock drilling is involved in field investigations in the search for suitable sites for nuclear waste repositories. The boreholes have to be sealed with some low-permeable, ductile, and chemically stable plugs. Compacted ...