Constructing broken rock supports for roofs of cavities storing liquified hydrocarbon gases
专利汇可以提供Constructing broken rock supports for roofs of cavities storing liquified hydrocarbon gases专利检索，专利查询，专利分析的服务。并且Liquified natural gas, ethane or propane is stored in a cavity in which the roof is supported on broken rock placed in the lake. Very cheap broken rock containing a large volume of voids,when piled,is provided by building the cavity on a rock formation, breaking the rock formation into small pieces by rippers or giant teeth pulled by giant tractors, sieving the broken rock into fractions with each fraction having rock pieces with a minimum to maximum size ratio of 0.5, and piling the rock fractions without substantial mixing in the cavity. This allows storage cavities to be built at a fraction of the former cost and that also can not be damaged by sabotage and riots like former storage can be.，下面是Constructing broken rock supports for roofs of cavities storing liquified hydrocarbon gases专利的具体信息内容。
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