Abstract
Reinforced Earth (R/E) is a patented system for the construction of earth retaining structures, which has been developed and is used extensively overseas. The system is now available in New Zealand, the licence holder being Reinforced Earth Limited. This paper briefly reviews the use, advantages, disadvantages, design methods, patented components and construction techniques associated with R/E retaining structures. Seismic design of R/E structures is discussed in general and a particular seismic design method is considered in detail. The paper also describes the design of a large R/E retaining wall, of 1800 m area and 13 m maximum height, in a seismically active area of New Zealand. A simplified empirical seismic earth pressure loading is proposed for approximate design.
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