Numerical Modelling of Shoring Systems: Case Study

Abstract

The present paper discussed different shoring systems for retaining Earth for shallow as well as deep excavations in soil. Numerical modelling technique has been used to simulate the different types of shoring systems. Three case studies have been taken for evaluating the shoring system for excavation at other conditions. The results of the numerical simulation in terms of Bending moment, shear forces, displacement, and axial forces have been analysed for these cases. Based on the analysis, the Solder piles (ISMB 450 mm) have been suggested for Project A with a depth of 19 m. Two/three anchors were suggested with a maximum load of 600 Kn with two loops of 15.2 mm strands & 9 m bond length. The RCC Contiguous Piles of 750 @ 850 mm spacing has been installed for Project B to the depth of 18.5 m. Anchors were designed with a maximum load of 578 kN with two loops of 15.2 mm strands. The micro pile is recommended for Project C based on the geotechnical condition of the area. Self-drilling Bolts (R32N (UL = 280 KN)) with 6 m length at 2.0 × 2.0 m c/c spacing has been installed on slope surface. Anchors were installed with a maximum load of 600 kN with two loops of 15.2 mm strands & 13 m bond lengths. The paper discusses the importance of installing anchors in the conjugation of shoring structures to increase the stability of the system. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.