About SHIMADA HIDEKI
About 九大 大学院工学研究院
About No-Dig Today
About slurry method
About rock mass
About machinery
About crushing and breaking
About stratum
About stone material
About gravel
About roller bit
About jacking method
About gravel bed
About cobble stone
About slurry method jacking method
About 破砕型推進機
About Tunneling machines or equipment
About 礫
About 地山
About 泥水式推進工法
About 状況