堀削土砂リサイクル処理機械における土砂と添加剤の混合に関する研究

概要

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In the previous study, a simulator to analyze the behavior of excavated soils in the soil-recycling machine with single shaft was developed. In this study, the simulator developed in the previous study was extended to the soil-recycling machine with dual shafts and numerical simulation on the "Processed volume" and "Distance of mixing completion" was carried out. Furthermore, an experimental apparatus was made and mixing experiments of excavated soils and additives were carried out. From the comparison between the simulated results and experimental ones, the spring constant in the normal direction which is necessary to carry out the simulation was determined for each soil. It was confirmed that the spring constant decreases with increase the angle of internal friction of the soil. By using this simulator, several simulations were carried out. The effects of some parameters such as paddle inclination angle and pitch of the paddle on the mixing performance were made clear through them.
2000-10-25