Chapter 5

A Case History of Jet Grouting in Marine Clay

Ing Hieng Wong1; Teoh Yaw Poh2    1 MITIC Engineers Pte Ltd., Singapore2 Building and Construction Authority, Singapore

Abstract

The basement excavation of the proposed Singapore Post Centre involved extensive jet grouting to improve the soft marine clay present within the excavation. The treated soil mass, with much improved strength and deformation characteristics, was intended to act as an internal strut below the bottom of the excavation level, reducing movements caused by the basement excavation.

This chapter presents the performance of a well-instrumented field jet grout trial and production grouting carried out during the construction of the building basement. Results of monitoring ...

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