A huge centrifuge at Public Works Research Institute, Japan

Main features of the PWRI geotechnical centrifuge III are following :

• One of the largest dynamic centrifuges in the world (Radius : 6.6 m, Maximum acceleration : 150 G, Maximum payload : 5 ton).
• A shaking table is mounted which can precisely simulate strong earthquake motions such as the Hyogo-ken Nambu earthquake by fixing the swing platform to the rigid rotating arm.
• Electric signal outputs from the transducers are transmitted to a control room through multiport fiber-optic rotary joint on the rotating axis, which provides precise data acquisition at high speed.
• This centrifuge has two swing platforms at both ends of the arm to enable static tests such as soft ground consolidation at the same time, for experimental efficiency.