原标题：广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段9月13日下午，广汕高铁增江特大桥成功合龙，标志着广汕高铁全线重难点工程建设取得了又一个突破性进展。
PEARL HARBOR, Hawaii -- The military next week plans to begin draining fuel from World War II-era underground fuel tanks in Hawaii, nearly two years after the massive facility sickened 6,000 people when it leaked jet fuel into a Pearl Harbor drinking water well.Removing the fuel is a key step toward shutting down the Red Hill Bulk Fuel Storage Facility as demanded by the state of Hawaii. The November 2021 spill poisoned the Navy's water system serving 93,000 people in and around Joint Base Pearl Harbor-Hickam. The leak continues to threaten an aquifer used by Honolulu's municipal water utility to serve 400,000 people on Oahu.“I want the community to know that my team and I understand the enormity and the significance of this mission,” Vice Admiral John Wade, the commander of Joint Task Force-Red Hill, said at a news conference.Work to drain the 104 million gallons (394 million liters) remaining in the tanks was scheduled to begin on Monday. Each tank is 250 feet (76 meters) tall and 100 feet (30 meters) wide. Gravity will feed fuel into fuel lines connected to the lower part of the tanks. The fuel will then flow downhill through pipelines for 3 miles (4.8 kilometers) to a tanker ship waiting at Pearl Harbor pier. It will take more than two days to fill each tanker. Wade said it would take three months to remove 99.9% of the fuel. Then, work will begin to remove a residual amount of an estimated 60,000 to 70,000 gallons that will have accumulated in low-point drains and bends. That work is expected to be finished in the spring. The moment is bittersweet for Lacey Quintero, whose Navy family was among the thousands who suffered health problems after drinking contaminated water in 2021. She's happy the fuel is being removed but the operation has stirred memories as the two-year anniversary of the spill approaches. “The timing of it, coupled with the dangers that are present during defueling — there’s fear,” she said. She's concerned that more fuel could spill into the Navy's drinking water well and poison the aquifer. She's also worried about possible explosions. Quintero and her husband, who is in the Navy, and their two children moved to Hawaii in November 2021 from California. They fell sick soon after moving. Her youngest, who was then 3 years old, vomited uncontrollably. The entire family complained of diarrhea and itchy skin. Quintero's arms and legs went numb and she struggled with chronic fatigue. Her husband is still stationed in Hawaii but they have moved to private housing off base which uses Honolulu municipal water. Yet she still suffers from stomach pains, migraines and skin issues. She has PTSD.“I have flashbacks of feeding my daughter this poison soup and watching her vomit it up,” she said.Quintero is one of 6,750 claimants seeking compensation from the U.S. government for what they experienced. Their attorney, Kristina Baehr, said claims for the first group of six plaintiffs were due to go trial in March. The state of Hawaii ordered the military to drain the tanks after the 2021 spill, saying they posed an imminent threat to the aquifer underneath. The Department of Defense challenged that order in court, but eventually acquiesced. It's spent the past year repairing the tanks and pipes so the fuel can be safely removed without additional leaks. For years the military said the tanks were vital to national security and resisted calls to close the facility or to move it. Military officials repeatedly reassured the public that Oahu's water was safe — even though the tanks had a history of leaks.The spill upset a broad cross-spectrum of Hawaii, and precipitated a crisis for the military in the islands. Many Native Hawaiians have been angered given the centrality of water in Hawaii’s Indigenous traditions.A Navy investigation pinned the cause of the spill on a series of mistakes. First, operator error caused a pipe to rupture on May 6, 2021, when fuel was being transferred between tanks. This caused 21,000 gallons (80,000 liters) of fuel to spill. Most of it flowed into a fire suppression line and sat there for six months, causing the line to sag.Then on Nov. 20, a cart rammed into the sagging line, releasing 20,000 gallons (75,700 liters.) A team thought they recovered all of this fuel, but they missed about 5,000 gallons (19,000 liters) which flowed into a French drain and from there into the drinking water well.The Navy reprimanded three now-retired military officers for their roles in the spill but didn't fire nor suspend anybody.。
二 | 大桥合龙后，设计时速350公里的广汕高铁建设将进入全线轨道铺设阶段。广汕高铁是广东省重点工程之一，起自广州新塘站，终至汕尾站。
三 | 广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段。
四 | 王建国摄由广铁集团广州工程建设指挥部建设管理、中国铁路广州工程局承建的增江特大桥为双塔双索面混凝土斜拉桥，为广汕高铁关键控制性工程。
五 | 大桥位于广州市增城区石滩镇境内，全长2569.480米，桥梁主跨 260米跨越增江水道，主塔采用高100米H型桥塔。主桥在全世界高速铁路斜拉桥建设中首次采用混凝土梁节段预制胶拼法施工，利用混凝土梁体自重大的特点，克服一般斜拉桥受空气流动性影响产生涡振现象，同时采用大型剪力键，提高梁体拼接缝的抗剪力性能。节段梁拼装通过纵向粗预应力钢棒与粘结胶有效结合，将各节段梁串联成整体而成桥，加大了梁体的刚性，降低了斜拉桥柔性变化特点，提高了高速铁路行车舒适性和安全性。这一创新性技术应用成为国内高速铁路建设的新标杆。广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段。王建国摄据广州工程建设指挥部有关负责人介绍，“主桥施工工序繁多，工艺复杂，精度控制要求高，成桥线形不易控制，施工难度高，安全风险大，是一座科技攻关型桥梁。
六 | 铁路部门于2019年12月专门成立了‘广汕高铁大跨度节段预制拼装混凝土斜拉桥关键技术及智能化研究’重点课题攻关小组，并如期攻克了相关难题。
七 | ”据悉，主桥节段梁对气温、混凝土质量和浇筑工艺均有严格要求，为确保顺利合龙，广州工程建设指挥部多次组织参建单位开展专题研究，制定增江特大桥合龙施工方案，对施工工艺进行详细分析和优化完善，并选定有利气温时段，最终实现了混凝土一次浇筑成功。广汕高铁联通京广、京港高铁和沿海铁路，是广东省“五纵二横”高速铁路网重要组成部分。广汕高铁建成通车后，广州到汕尾的旅行时间将由目前的2小时压缩到最快40分钟左右。沿线旅客出行将更加方便通畅、舒适便捷，对完善粤港澳大湾区综合交通体系建设，打造广州“1小时经济生活圈”，助推粤东地区加快融入粤港澳大湾区协同发展、促进乡村振兴具有重要意义。
八 | 采写：南都记者钟丽婷 实习生李露莉 通讯员林群海 柴晶玲返回搜狐，查看更多责任编辑：
