Abstract
This paper proposes a new soil treatment method that employs reinforced deep mixing method (RDMM). In this method, the deep mixing pile is reinforced in a manner similar to a spirally reinforced concrete column. This paper aimed to evaluate the effectiveness of RDMM on improving the strength and deformation properties of a non-plastic soil. Four (4) experimental phases are conducted in this study and these are: 1) Physical property tests of the base soil, (2) Unconfined compressive strength (UCS) tests on unreinforced cement- admixed soil specimens, (3) Unconfined compressive strength tests on reinforced cement-admixed soil specimens, and (4) Construction and load testing of full-scale reinforced deep mixing pile. The results unconfined compressive strength tests revealed that the influence of longitudinal bars on the unconfined compressive strength of reinforced cement- admixed non-plastic soil is pronounced at low cement contents.
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