Retention in the sediment and rock-solid floor. Japan country energy storage has been in the form of air under pressure in conglomerate layers. (Shidahara et al., 2000) and in the limestone layers (Liang and Lindblon, 1999) in the United States and the United Kingdom have used various rock-solid floor to store energy in the form of compressed air (McKay et al., 1989; Salter et al., 1984; 1978; and Morfeldt, Pincus, 1975), etc. There are many researchers have studied and analyzed in order to design such stone floor in the cavity carefully.
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