Experimental Study on Effect of Disc Spacing on Soil Failure State of Expanded Pile under the Action of Horizontal Force and Application in Oceanographic Engineering

Qian, Y.; Fang, B.; Jin, Y., and Wang, R., 2020. Experimental study on effect of disc spacing on soil failure state of expanded pile under the action of horizontal force and application in oceanographic engineering. In: Yang, D.F. and Wang, H. (eds.), Recent Advances in Marine Geology and Environmental Oceanography. Journal of Coastal Research, Special Issue No. 108, pp. 283–287. Coconut Creek (Florida), ISSN 0749-0208. In oceanographic engineering, concrete expanded piles represent a new type of pile foundation. This article observes small-scale half-section model pile of undisturbed soil, analyzes horizontal displacement of pile top and failure state of soil around piles under the action of horizontal force, and then further determines the effect of disc spacing on horizontal bearing capacity of concrete expanded piles. The test program, process, and test precautions are elaborated in the article, and the new findings of the test results, which provide a reliable theoretical basis for their application in oceanographic engineering, are presented.