9月12日,广东省重大民生水利工程——粤东水资源优化配置工程二期隧洞实现全线贯通,标志着工程15条盾构区间全部贯通。
粤东水资源优化配置工程二期工程建成后可将韩江水资源调配至汕头等多个地区,多年平均取水量3.11亿立方米,服务人口850多万,将切实优化广东东部水资源配置格局,提升区域水安全保障能力。水电十一局承建工程施工1标。
施工中,水电十一局克服区间埋深大、断裂多、裂隙水发育,上软下硬地层岩石力学性能悬殊,中小型孤石成群分布、单一孤石强度高,相比初步设计地勘报告发生重大变化等多种不利条件,不断进行技术创新,细化每一个施工环节,推进了项目施工顺利进行。特别是面对世界级地下孤石群,水电十一局在世界首创盾构机洞内双模改造,解决了工程盾构施工的最大难题,为类似复杂地质条件下的盾构施工提供了全新的解决方案。
庆祝贯通
隧洞
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