盐穴储气库建槽工程实践与顶板极限跨度分析

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Abstract According to the analysis of an engineering case of building sump of Jintan salt cavern，some problems existing in the engineering case are discussed. The experience and lesson are summarized，and some ideas and suggestions are proposed. Then，some key factors that should be considered in the design progress of solution mining are discussed. The necessity of determining limit diameter of cavern roof is expounded. And a method of calculating limit exposed diameter of cavern roof is presented. With this method，the limit roof diameters of some salt caverns are studied basing on simulation test. The limit roof diameters of salt caverns with different lateral solution angles and cavern heights are obtained，and their laws are studied.

Key words： rock mechanics salt rock gas storage solution mining building sump of salt cavern engineering practice diameter of cavern roof

Received: 01 May 2012

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http://www.rockmech.org/EN/Y2012/V31/Is2/3703

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