Design, construction and performance of a soil nailed excavation in Hong Kong

Soil Nailing is an insitu ground improvement technique. For the last decade, this technique has been widely used in Hong Kong as an economic, effective and simple means for stabilizing cut slopes and retaining excavations. This paper describes the design, construction and performance of an instrumented soil nailed excavation in Hong Kong. Interpretation and analysis of field monitoring results are also presented. The behaviour of the nailed excavation derived from numerical modelling is compared to the field measurements. Le cloutage du terrain est une technique d’amelioration du sol sur le site. Durant la derniere, decennie, cette technique a ete amplement utilisee a Hong Kong, comme etant les moyens economique, efflcace et simple de stabilisation des pentes coupees et de retention des excavations. Ce papier decrit le dessin, la construction et l’execution d’une excavation de sol cloute, au truchement d’equipement; a Hong Kong. Les resultats d’interpretation et d’analyses de control du terrain sont aussi presentes. La conduite de l’excavation cloutee derivee du modelage numerique est comparee aux mesurages du champ.