Abstract
In the evaluation of ground improvement by jet grouting, the compressive strength test is generally employed by means of the boring core specimen, which can be obtained as a test cylinder. However, the ground improvement without such improve condition is estimated to be able to support a certain extent of load. The purpose of this study is to establish the evaluating criterion of condition of jet grouting, and to propose the evaluation method for ground improvement. Furthermore, the present study discusses the estimation method for strength of whole improvement of ground.
