Lateral displacement of boundary wall of residential building due to timber piles installation in soft ground

Sailesh Shrestha; Norihiko Miura; Yuki Matsumoto

Sailesh Shrestha Former Lecturer/ Research fellow at Saga University, Japan
Norihiko Miura Laboratory of soft ground, Saga, Japan
Yuki Matsumoto Kyushu Piling Co. Ltd.

Keywords: FEM 3D, pile-installation, timber piles, lateral displacement

Abstract

Numerous investigations on piles' behavior in soft ground have been concerned with single piles' bearing capacity and settlement behavior. Relatively, little is known about the implications of installing group piles, such as the lateral displacement caused by driving piles into soft ground. The mechanism of lateral displacement of the ground and the boundary wall (BW) of residential buildings due to the timber pile installation in the soft ground was investigated by a series of three-dimensional (3D) finite element analyses and field measurements. Based on the numerical analyses, the magnitude of the lateral displacement of the ground in the construction site has been quantified at first in this paper after investigating the mechanism in terms of installation patterns, machine movement, auger drilling, type of the pile, the distance of the nearest row of the pile to the BW, and stiffness of the fill material. Then the construction methods to minimize lateral displacement of the boundary wall have been proposed in this study.

Author Biographies

Norihiko Miura, Laboratory of soft ground, Saga, Japan

Professor Norihiko Miura is the emeritus professor of Saga University, Japan. He is also one of the founders of the Lowland Technology International Journal. Currently, he is the President of the Laboratory of Soft ground, Saga, Japan. He is currently the editor of the Soft ground journal which is published yearly in the Japanese language.

Yuki Matsumoto, Kyushu Piling Co. Ltd.

He is deputy director at the Technology development department of Kyushu Piling Co. Ltd.