山岳トンネル (7)

[VI-921] Development of "high-speed,high-rigidity bolt (high-high bolt) system"

*安田 耕治¹、足立 忠彦¹、水谷 和彦²、寺戸 秀和³、浅井 勉¹、岩本 昭仁¹、森田 篤²、櫻井 孝臣² (1. 株式会社カテックス、2. 前田建設工業株式会社、3. （一社）日本建設機械施工協会 施工技術総合研究所)

Keywords:high-speed, high-rigidity bolt, high speed construction, supplementary construction method, high strength improved ground

An expressway and a high stiff bolt system are to use a high stiff bolt for a core, and for high-speed boring to become possible compared with supplementary construction method of a conventional duplex tube boring system, it's possible to place it without disturbing a natural ground by boring water. It's possible to improve settlement and high strength in several minutes, and the combination which will be high stiff volt and high-strength silica resin later is the technology which can expect early displaced restraint. I'll report on developed expressway "and" high stiff bolt (high high bolt) system by this report.