巴基斯坦塔贝拉大坝五期扩建工程岩体坍塌进水：施工暂停、全体工人安全撤离
哈里布尔 — 巴基斯坦水电开发署11月9日表示，位于开伯尔-普赫图赫瓦省印度河上的塔贝拉大坝第五期扩建（T-5）水电工程当天发生岩体坍塌进水事故：在开挖一条连接隧洞时，一段软弱岩体垮塌，进水口蓄水坑的水涌入隧洞与在建厂房区域；施工已无限期暂停，全体工人安全撤离、无人伤亡。
水电开发署在声明中说，主隧洞、在建厂房、尾水渠与升压站均未受损，网上流传的「五号隧洞坍塌」说法不实；进水口蓄水坑的水已排空，在建厂房的排水作业已经展开。哈里布尔副专员 Wasim Ahmed 到场后表示情况完全受控；据《论坛快报》报道，一名巴基斯坦工人曾被水卷入，后被救援队救出。
塔贝拉大坝是世界上最大的土石填筑坝，是巴基斯坦电力与农业灌溉的支柱工程。T-5 工程把大坝原有的五号隧洞改造成发电引水隧洞，新建三台51万千瓦机组、总装机153万千瓦，由中国电建（PowerChina）承建，资金来自世界银行与亚洲基础设施投资银行；现场有包括中国工程师在内的多国外籍人员，事发后均已安全撤离。
这已是 T-5 工程约十五个月内第二次进水停工。今年7月，巴基斯坦政府一份调查认定，此前一次围堰垮塌中，承建方、监理与水电开发署均负有责任。当局已下令就本次事故展开高层调查，复工时间未定；工程完工目标此前已经推迟到2028年。
（来源：巴基斯坦水电开发署）
Rock Collapse Floods Tarbela Dam Extension Works in Pakistan: Construction Halted, All Workers Evacuated Safely
HARIPUR — Pakistan's Water and Power Development Authority (WAPDA) said on November 9 that a rock collapse flooded works at the Tarbela Dam's Fifth Extension (T-5) hydropower project on the Indus River in Khyber Pakhtunkhwa province: while crews were excavating a connecting tunnel, a weak rock mass gave way and water from the intake pit rushed into the tunnel and the under-construction powerhouse area. Construction has been suspended indefinitely, all workers were evacuated safely, and no one was hurt.
In its statement, WAPDA said the main tunnel, the powerhouse under construction, the tailrace culvert and the switchyard were undamaged, and rejected circulating reports that Tunnel Five had collapsed. The water in the intake pit has been fully drained, it said, and dewatering of the powerhouse area has begun. Haripur Deputy Commissioner Wasim Ahmed, who visited the site, said the situation was fully under control; the Express Tribune reported that one Pakistani worker was swept into the water and was pulled out by rescue teams.
The Tarbela Dam is the world's largest earth-and-rock-fill dam and a mainstay of Pakistan's electricity supply and agricultural irrigation. The T-5 project converts the dam's existing Tunnel Five into a power tunnel and adds three 510-megawatt units, for 1,530 megawatts in total. It is built by PowerChina and financed by the World Bank and the Asian Infrastructure Investment Bank; foreign personnel on site, including Chinese engineers, were all evacuated safely.
It is the second time in about 15 months that water has halted work at T-5. A Pakistani government inquiry in July 2026 found the contractor, the consultant and WAPDA jointly responsible for an earlier cofferdam collapse. Authorities have ordered a high-level inquiry into Monday's incident, no restart date has been set, and the project's completion target had already slipped to 2028.
(Source: Pakistan Water and Power Development Authority)
来源：巴基斯坦水电开发署
发布：GSM·美国（发布链接）
图片来源：图：巴基斯坦塔贝拉大坝（资料图），美国政府摄，公共领域，经 Wikimedia Commons。 / Photo: The Tarbela Dam in Pakistan (file photo), by the United States government, public domain, via Wikimedia Commons.
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