引江补汉工程新增一条掘进超千米的隧洞|色狠狠一区二区三区香蕉
中新网武汉7月17日电 (郭晓莹 刘陈)记者17日从中国能建葛洲坝集团获悉，截至目前，引江补汉工程土建施工及金结机电安装7标段16号平洞掘进已超千米，洞室掘进施工“进度条”持续刷新。
引江补汉工程7标项目位于湖北省襄阳市谷城县和保康县，主要包括16.55千米输水隧洞，以及竖井和多个支洞建设。工程沿线地质条件复杂，断层多、地下水多、软岩多。
此次掘进突破千米大关的16号平洞全长2.45千米，最大埋深409米，岩层破碎、断层交错，采用钻爆法施工，作业空间受限，技术难度大、安全风险高。
面对严峻挑战，现场项目部倒排工期、挂图作战，根据围岩情况动态优化爆破参数与施工方案，实施“分区分段”精准爆破，人机协同优化喷浆路径，施工效率全面提速。
引江补汉工程是南水北调后续工程首个开工项目。工程从长江三峡库区出发，从地下穿越194.7公里的崇山峻岭，抵达丹江口水库坝下，把长江水引入汉江。工程建成后将进一步打通长江向北方输水通道，增加南水北调中线一期工程调水量，大幅提高汉江流域水资源调配能力，并为引汉济渭工程实现远期调水规模创造条件。(完)
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