By C J F P Jones, West Yorkshire Metropolitan County Council
This paper was first published in GE’s October 1978 issue and is based on a lecture given by the author at last year’s TRRL/Harlot-Wan University symposium on reinforced earth.
Model studies have shown that reinforced earth structures can be constructed in a variety of ways and confiigurations. The three methods currently in use are shown in Rg. 1. Each method can accommodate the differential vertical settlement within the soil mass which is a feature of reinforced earth and which results in the reinforcing elements moving together.
The concertina and telescope methods are used by the Reinforced Earth Company using proprietary facing units. The York method (sliding) was developed by Jones (1973, 1978).Only the telescope and York methods of construction are currently in use in Britain, although a crude derivation of the concertina method has been used for temporary site works.