【摘要】 云应盐矿区通过新旧盐井更替、改造井身结构、完善分采工艺等技术措施，提高了老采区的资源回收率，实现了对老采区的挖潜改造。更多还原

【Abstract】 Adoption of measures such as replacing old well with new one,improving well structure and perfecting the selective mining process in Yunying Salt Mine results in increase of resource recovery,realization of technical remoulding and topping of potentiality of old mining area.更多还原