A new IPS earth retention system
Kim N.K., Park J.S., Jang H.J., Kim M-H Y, Han M.Y., Kim S.B. · IOS Press eBooks · 2005
A new innovative prestressed wale earth retention system (IPS) has been developed and introduced. The system uses a wale prestressed by steel wires. The IPS wale system consists of wales, steel wires, H-beam support legs, and hydraulic jacks. The IPS provides a high flexural stiffness to resist the bending by earth pressures. The IPS earth retention system provides a larger spacing of support, economical benefit, construction easiness, good performance, and safety control. This paper explains basic principles and mechanism of the IPS earth retention system and presents advantages and limitations of this earth retention system. This paper also presents the results of field tests, which investigate applicability and safety of the IPS earth retention system. The field tests applied in a trench excavation and in an urban excavation performed successfully.