尼泊尔特里苏利河流域上周遭遇致命洪灾，冰川溃坝引发的洪水冲入正在施工的水电工程隧道1。工人彭巴·敦杜·塔芒和约30名同事正在建造隧道混凝土衬层时，突然的强气流和洪水迫使他们仓皇逃离1。塔芒表示，洪水追赶了他长达20分钟1。尼泊尔官方数据显示，这场灾害已造成超过1000人丧生，约4000人失踪，其中数百人可能是在众多水电隧道网络中工作的劳工1。
灾害对普通民众造成了深重创伤。塔芒失去了6名家庭成员——母亲、哥哥、嫂子和他们的3个孩子1。同事伊莎·加勒的损失更为惨重，8名家庭成员在灾难中丧生，其中包括他的母亲和大女儿1。约50至60名工人与塔芒一起从隧道中逃出1。
卫星图像数据显示，灾害发生前冰川表面运动加速，融水变褐，周围岩石出现裂缝1。科学家指出，下游地区收到洪水预警需要10分钟以上，而完善的预警系统可能挽救大量生命1。尼泊尔99%以上的电力来自水电1，上特里苏利3B水电项目原定于次年开工运营1。
A catastrophic flooding event struck Nepal's Trisuli River valley last week when a glacial dam burst, sending torrents of water into hydroelectric project tunnels where workers were laboring on concrete lining.1 The death toll has exceeded 1,000 people, with approximately 4,000 missing, among them hundreds believed to be workers engaged in the extensive network of hydroelectric tunnels across the country.1
Pemba Dandu Tamang, one of the affected workers, described a harrowing escape as he and roughly 50 to 60 colleagues fled the tunnel.1 He recounted that a sudden surge of compressed air and floodwaters forced the group to evacuate, with the water chasing him for approximately 20 minutes as they rushed to safety.1 The tragedy has devastated Tamang personally—he lost six family members, including his mother, brother, sister-in-law, and their three children.1 A coworker, Isha Gale, suffered even greater losses, with eight family members dead including her mother and eldest daughter.1
Satellite imagery revealed warning signs before the disaster, showing accelerated surface movement on the glacier, browning meltwater, and emerging rock fractures in the surrounding terrain.1 Scientists have noted that communities downstream received only 10 or more minutes of warning before the floods arrived, and they emphasize that an improved early warning system could have saved numerous lives.1 Nepal relies overwhelmingly on hydroelectric power, with more than 99 percent of its electricity generated from water sources, making such projects critical to the nation's energy infrastructure.1 The Upper Trisuli 3B hydroelectric project was originally scheduled to begin operations the following year.1
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