Field and numerical analysis on effect of axial load on the lateral response of a pile

Abstract

Purpose Piles often carry combination of axial and lateral. Currently, piles are designed separately for axial and lateral load. In the literature, few information is available on the influence of axial load on lateral behaviour of the pile. This paper aims to present the results of load deformation of a pile under pure lateral load and combined axial and lateral load. Design/methodology/approach The field load tests were carried out on four different pile diameters at two different bridge sites. Moreover, the paper addresses the numerical simulation of filed load test carried out on the pile under the combination of axial and horizontal load. Findings After field load tests and numerical simulation, it was found that the vertical load had a remarkable effect on the lateral load response of a pile. The lateral deflection of the pile was decreased about 25% under the effect of vertical load. In addition to this, the results from field and numerical simulation are quite comparable. Originality/value Typical field load tests were simulated numerically. This research adds a value in the areas of pile foundation subjected to vertical and lateral load particularly for structure such as transmission line tower and jetty.

Height of interconnected fracture zone based on the impact of rock fragmentation and bulking

“…Theoretical research has indicated that the technical parameters of an interconnected fracture zone play a significant role in water-conservation coal mining (Jiao et al., 2018; Wang et al., 2017; Yin et al., 2019). In addition, various new techniques have been proposed for predicting the overburden failure zone, such as similar-material physical simulation and computer-based numerical simulation (Djamel et al., 2019; Huang and Wu, 2018; Yogendra and Gaurang, 2019), microseismic monitoring (Hill and Mauger, 2016; Tan et al., 2013; Yu et al., 2017), electromagnetic wave and resistivity chromatography (Li et al., 2019; Onyebueke et al., 2018), and the key stratum theory (Hu et al., 2019; Ju and Xu, 2013; Wu et al., 2014). All these methods have been analyzed qualitatively or quantitatively based on the simulation data and in-situ studies (Du and Gao, 2017; Guo et al., 2012; Liu et al., 2015; Miao et al., 2011).…”