International Session 国際セッション (2)

[CS2-08] 単粒子強度に着目した回転破砕による礫材の粒度変化特性

*金 在完¹、中島 典昭²、安福 規之¹ (1. 九州大学、2. 日本国土開発)

キーワード：回転式破砕混合工法、単粒子強度試験、粒度分布曲線、箱ひげ図

A large amount of high-quality soils is required of large projects. But high-quality soil is insufficient. In this paper, the rotary crushing and mixing method was dealt for the following reasons. Twister method is applicable cohesive soil and soft rocks as well although the type of soil was difficult to handle for soil improvement and crushing and mixing are done in large quantities with conveyor belts. In order to make efficient use of the Twister method, this paper focused on the single particle strength test, and conducted a basic study on the grain size distribution of gravel materials.