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mine floods
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mine floods
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矿井水灾
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mine floods
矿井水灾
矿山在建设和生产过程中,因人为因素(如影响、揭露或破坏含水层、隔水层和导水断层,引起围岩岩层移动和地表塌陷等)和自然因素(如地表河流决堤、水库溃坝、山洪暴发、暴雨等),使不同形式、不同水源的水通过各种通道进入矿井,造成矿井涌水超出矿井正常排水能力,给矿山建设和生产带来不利影响及灾害的过程和结果。是矿山常见的一种主要灾害。
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terra-cotta figures of warriors and horses of the Han Dynasty unearthed at Xianyang
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terra-cotta figurines in the Wanzhang Mausoleum of Ci County
terracotta figurines of opera performers and dancers excavated from the Mausoleums of the Southern Tang Dynasty
terra-cotta figurines of the Spring and Autumn period and the Warring States period
terracotta warriors and horses at Shizishan
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更新时间:2026/8/6 5:19:50