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“女啊~你TM别添了”-环球时报

云南昭通市镇雄县女啊~你TM别添了“1·22”山体滑坡灾害成因公布

来源: 新浪新闻
2024-12-17 16:56:14

最佳回答

“女啊~你TM别添了”云南昭通市镇雄县女啊~你TM别添了“1·22”山体滑坡灾害成因公布

  中新女啊~你TM别添了网昆明12月17日电 (罗女啊~你TM别添了婕)云南省应急管理厅近日公布《昭通市镇雄县“122”山体滑坡灾害调查评估报告》(下称《报告》)。调查认定,此次灾害是位于高陡地形上的层状碎裂岩体,在强烈的风化卸荷及长期降水入渗、反复的冻胀冰劈等因素影响下,突遇气温骤降伴随雨雪等局地小气候,导致临界稳定态滑源岩体结构失稳,诱发突发性山体滑坡,造成重大人员伤亡和经济损失的自然灾害。

  2024年1月22日5时51分,昭通市镇雄县塘房镇凉水村突发山体滑女啊~你TM别添了坡灾害,造成44人遇难,经济损失约1.45亿元。

  《报告》显示,昭通市镇雄县“122”山体滑坡灾害规模级别为中型滑坡,灾情等级属特大型灾害范畴。滑坡形成原因为:单薄高陡地形地貌和节理发育的岩层结构具备发生滑坡的自然条件;表层岩体受长期风化侵蚀、降水入渗、冻胀冰劈等作用影响,泥质粉砂岩不断产生破碎崩解或加速岩体节理发育,具备形成高位滑移铲刮的外界条件;滑坡前山区局地气温同比偏高,突遇气温骤降,并伴随降雨至冻雨至降雪等气候剧烈变化过程,冻胀冰劈等致灾激发力短时激增,致使临界稳定态滑源岩体结构强度减弱失稳诱发导致山体滑坡。

图为云南省昭通市镇雄县“122”滑坡影像图。《报告》截图

  此次灾害主要特点为隐蔽性大,突发性强。滑坡点位置高陡,植被茂密隐蔽性强。灾害发生前,该点不在地质灾害隐患判定标准认定范畴,因此未纳入在册地质隐患点管理。正常巡查时未发现该滑坡点有明显变形迹象。灾害发生在夜间,临灾前无任何前兆突然发生。

  破坏力强,灾害损失大。约16万立方米滑坡体瞬间滑落,具有强大的冲击力和摧毁力,造成52户381间房屋被掩埋(或倒塌)、44人遇难,经济损失约1.45亿元。其中,房屋及家庭财产损失1.07亿元。

  受灾区窄,救援展开难。由于滑坡体堆积区域狭窄,施展救援空间极为有限,现场大型救援设备和大量救援人员难以全面铺开,给现场救援的组织和协调带来极大的挑战,特别是土石方掘进和清理运输难度极大。

  《报告》显示,镇雄县全力做好受灾群众搬迁安置,集中安置房按照“人均25平方米、每户不超过150平方米”的标准建设,以满足不同家庭人口的需求,选址县城南部新区,一期项目已于2月19日开工,计划于2025年春节前完成搬迁入住。

  镇雄县位于云贵川三省结合部。该县地处乌蒙山脉北缘斜坡山地,地质构造复杂,地质条件脆弱,地质灾害易发高发,属地质灾害威胁重点防范县。(完)

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