Pile Clusters Research Articles

Added Mass of Pile Group

Through laboratory investigation, it is shown that when a pile group is arranged in a cluster, the added mass (or inertial force) increases sharply after the spacing between piles falls below a certain critical value. Two configurations of pile group arrangement—circular and square shapes of approximately the same base diameter—were tested. The experimental results reveal that when the spacing between piles is smaller than two times the pile diameter, or the solidification ratio becomes larger than 0.5, the added mass of the pile group increases drastically. For pile groups with individual pile spacing less than this critical value, the volume enclosed, rather than the volume displaced, by the pile cluster should be used as bases for added mass computation.

Bearing capacity of pile clusters in settling ground : In Russian. 2R. RUSSIA MINIST. VYSSH. SREDN. SPETSIAL. OBRAZ. IZVEST. VYSSH. UCHEB. ZAVED. STROITEL. ARKHITEKT, N7, 1974, P37–42

Bearing capacity of pile clusters in settling ground : In Russian. 2R. RUSSIA MINIST. VYSSH. SREDN. SPETSIAL. OBRAZ. IZVEST. VYSSH. UCHEB. ZAVED. STROITEL. ARKHITEKT, N7, 1974, P37–42

Bearing capacity of pile clusters, in the type 1 settling ground, subjected to horizontal stresses In Russian : Kuzmenko, GV Shishko, GF 3R Stroitel. Konstrukt. V23, 1974, P139–146

Bearing capacity of pile clusters, in the type 1 settling ground, subjected to horizontal stresses In Russian : Kuzmenko, GV Shishko, GF 3R Stroitel. Konstrukt. V23, 1974, P139–146

Structural Action of Pile Cluster Dolphins

Dolphins were investigated for the three cases in which (1) piles are rigidly fastened at their heads; (2) shear flexibility is permitted between piles; and (3) plastic yield is permitted in the soil. It is shown that shear flexibility increased the efficiency of the structure, and yielding increased strength and energy absorption. A formula is obtained that gives the elastic energy absorption capacities of dolphins of standard geometry.