Improved design for settlement of helical pile in clay

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Polishchuk, A.I.^1 ; Maksimov, F.A.^1

Department of Foundations, Kuban State Agrarian University Named after I.T. Trubilin, Kalinina Str., 13, Krasnodar

350044, Russia^1

关键词: Applied loads;    Design solutions;    Direct shear test;    Improved designs;    Non linear;    Pile-settlement;    Semi-solids;    Settlement forecast;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012110/pdf
DOI  :  10.1088/1757-899X/451/1/012110

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

A method is being developed for calculating the settlement of a single two-bladed helical pile in clay. It is proposed to use the results of laboratory direct shear tests to determine the pile settlement, caused by shear deformation around the pile. The method takes into account the real behavior of the soil during shear deformation, which theoretically allows one to obtain a non-linear dependence of the pile settlement on the external applied load, observed in the experiments. This solution is based on the use of a patented design solution of a two-bladed helical pile. Using the example of comparison with the results for soils with semi-solid consistency, it is shown that the method allows increasing the reliability of settlement forecast in clay.