Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behavior of Single Pile in Expansive Clay
The paper describes the results of a series of laboratory experiments carried out to study the behavior of piles in expansive clay. Measurements are presented for the progress of swelling with time, at various points in the clay after it is subjected to a controlled change in moisture content. Measurements of pile head movement and tensile force in the pile are then presented with particular attention being paid to their relationship with soil surface movement. The influence of a number of variables is then examined including: (i) compressive axial load on the pile, (ii) an applied overburden pressure on the soil surface, (iii) the presence of a stable sand layer below the expansive clay layer. Finally, comparisons are made between the observed behavior and that predicted from a theoretical boundary element analysis. The general trends of behavior are adequately reproduced by the theory, but the detailed variations of pile movement and pile force with time are not always predicted accurately by the theory employed. Suggestions are made for refinements to the theory to reproduce more closely the real behavior.
Behavior of Single Pile in Expansive Clay
The paper describes the results of a series of laboratory experiments carried out to study the behavior of piles in expansive clay. Measurements are presented for the progress of swelling with time, at various points in the clay after it is subjected to a controlled change in moisture content. Measurements of pile head movement and tensile force in the pile are then presented with particular attention being paid to their relationship with soil surface movement. The influence of a number of variables is then examined including: (i) compressive axial load on the pile, (ii) an applied overburden pressure on the soil surface, (iii) the presence of a stable sand layer below the expansive clay layer. Finally, comparisons are made between the observed behavior and that predicted from a theoretical boundary element analysis. The general trends of behavior are adequately reproduced by the theory, but the detailed variations of pile movement and pile force with time are not always predicted accurately by the theory employed. Suggestions are made for refinements to the theory to reproduce more closely the real behavior.
Behavior of Single Pile in Expansive Clay
P. K. Challa (Autor:in) / H. G. Poulos (Autor:in)
1992
74 pages
Report
Keine Angabe
Englisch
Structural Analyses , Soil & Rock Mechanics , Clays , Pile driving , Soil-structure interactions , Pile structures , Soil properties , Soil tests , Moisture content , Bearing capacity , Test facilities , Boundary element method , Overburden , Loads(Forces) , Modulus of elasticity , Earth movements , Tensile properties , Foreign technology
Behaviour of single pile in expansive clay
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