发明名称 SKIKTARTAD STOEDKONSTRUKTION, FOERFARANDE FOER FRAMSTAELLNING DAERAV SAMT ANVAENDNINGEN AV STOEDKONSTRUKTIONEN. SIIRRETTY PAEIVAEMAEAERAE - FOERSKJUTET DATUM PL 14 ç 06.05.1987
摘要 The support structure according to the invention has at least two ice layers lying one on top of the other, the density of the lower layer being less than the density of the upper layer. The upper layer forms a support surface and the lower layer distributes the loads directed towards the support surface. The structure is formed by spraying, onto a support base, a first layer of ice whose average density is less than 800 kg/m3, and by arranging on top of this, either by spraying or by screening, a second layer of ice whose density is at least 800 kg/m3. The support structure according to the invention is used, for example, as an ice route and casting mould for hardening stone aggregates.
申请公布号 FI871965(A) 申请公布日期 1988.11.07
申请号 FI19870001965 申请日期 1987.05.04
申请人 VALTION TEKNILLINEN TUTKIMUSKESKUS 发明人 KAERNAE, TUOMO KALERVO;HAKALA, RISTO AULIS;MAKKONEN, LASSE JUHANI
分类号 E02B17/00;E04G;E04G21/00;F25C3/00;(IPC1-7):E04G/ 主分类号 E02B17/00
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