A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Investigations of Axial Capacity of Model Grouted Piles in Marine Calcareous Sediments
Two series of model pile tests have been carried out in a specially-designed apparatus to investigate the characteristics of skin friction on grouted piles in an offshore calcareous sand. The first series of tests has investigated the influence of overburden pressure and relative density on static friction and soil modulus, and the degradation of skin friction under displacement-controlled cyclic displacement amplitude exceeds the displacement required to cause slip of the pile under static loading. The second series of tests has investigated the stability of the pile under various combinations of mean and cyclic load levels. On a cyclic stability diagram plotting cyclic load level against mean load level, two distinct zones have been identified, a stable zone in which cyclic loading has no effect on pile capacity, and an unstable zone in which cyclic loading causes the pile to fail within a specified number of cycles. These cyclic stability characteristics have been compared with some field test results and found to be consistent over a wide range of load levels. A theoretical analysis based on a simple degradation model is described, and is shown to predict the general behavior of the model pile tests reasonably well.
Experimental Investigations of Axial Capacity of Model Grouted Piles in Marine Calcareous Sediments
Two series of model pile tests have been carried out in a specially-designed apparatus to investigate the characteristics of skin friction on grouted piles in an offshore calcareous sand. The first series of tests has investigated the influence of overburden pressure and relative density on static friction and soil modulus, and the degradation of skin friction under displacement-controlled cyclic displacement amplitude exceeds the displacement required to cause slip of the pile under static loading. The second series of tests has investigated the stability of the pile under various combinations of mean and cyclic load levels. On a cyclic stability diagram plotting cyclic load level against mean load level, two distinct zones have been identified, a stable zone in which cyclic loading has no effect on pile capacity, and an unstable zone in which cyclic loading causes the pile to fail within a specified number of cycles. These cyclic stability characteristics have been compared with some field test results and found to be consistent over a wide range of load levels. A theoretical analysis based on a simple degradation model is described, and is shown to predict the general behavior of the model pile tests reasonably well.
Experimental Investigations of Axial Capacity of Model Grouted Piles in Marine Calcareous Sediments
C. Y. Lee (author) / H. G. Poulos (author)
1990
38 pages
Report
No indication
English
Structural Analyses , Soil & Rock Mechanics , Physical & Chemical Oceanography , Ocean Sciences & Technology , Mineral Industries , Pile foundations , Bearing capacity , Ocean bottom , Sediments , Offshore structures , Calcareous soils , Bearing tests , Pile structures , Sands , Soil pressure , Soil tests , Friction factor , Offshore drilling , Foreign technology , Grout
Capacity of model grouted piles in calcareous sediments
| British Library Conference Proceedings | 1998
Friction capacity of model grouted piles in calcareous sediments
| British Library Conference Proceedings | 1999
Grouted Driven Piles in Calcareous Soil
| British Library Conference Proceedings | 1994
Design of Grouted Offshore Piles in Calcareous Soils
| British Library Conference Proceedings | 1992