Study On Model Test Of Nodular Pile Uplift Bearing Characteristics

Nodular pile is a new type of steel reinforced concrete pile. It is mad e using pre-tensioned prestressed technology and centrifugal molding by professional manufacturers. Based on the common precast pile, Precast n odular pile is a new pile with circumferential ribs, reinforced concrete pip e pile is formed by centrifugal separation section along the pile is a new p ile, which belongs to one kind of variable section pile. Compared with the traditional prestressed pipe pile, it has these advantages that reliable conn ection, convenient construction, high strength and low cost. In this paper, we aim to investigate for bamboo pile uplift performanceof in-depth anal ysis, the main content of the study:(1)On the basis of previous studies, made a more in-depth study in basic failure form of equivalent cross section, the determination of ultimate bearing capacity and deformation of uplift piles of calculating methods and pile side friction characteristics of piles,provides a good theoretical basis for nodular pile.(2)To analysis the mechanism of nodular pile by using indoor model test, which compares the pull-out bearing performance of nodular pile wit h that of the single pile.(3)Three sets of nodular pile tests with different bamboo spacing are designed to investigate the bearing performance,and to find out the The most reasonable bamboo spacing.(4)Based on the field test and indoor model test results,the finite ele ment analysis is conducted using FEM software ABAQUS to find out the most reasonable bamboo spacing.(5)To study the influence of altering geotechnical parameters on the indoor model test and numerical simulation results By the finite element software.