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“性妇❌❌❌❌❌❌JAPPT”-译文小记

贵州水利“性妇❌❌❌❌❌❌JAPPT一号工程”夹岩工程王家坝隧洞全线完工

来源: 西安晚报
2024-12-27 12:46:59

最佳回答

“性妇❌❌❌❌❌❌JAPPT”贵州水利“性妇❌❌❌❌❌❌JAPPT一号工程”夹岩工程王家坝隧洞全线完工

  中新性妇❌❌❌❌❌❌JAPPT网贵州毕节12月25日性妇❌❌❌❌❌❌JAPPT电 (张红艳 李静)25日,贵州水利“一号工程”——夹岩水利枢纽及黔西北供水工程(简称夹岩工程)的关键部分——毕大供水工程王家坝隧洞宣告全线完工。这标志着毕大供水工程的全线贯通,未来每年将为毕节城区稳定提供1.6亿立方米的生产生活用水。

  夹岩水利枢纽及黔西北供水工程位于乌江一级支流六冲河中游。该工程由水源工程区、毕大供水区和灌区骨干输水区三大主要部分构成,旨在提供供水和灌溉服务,同时具备发电功能。工程竣工后,将惠及毕节和遵义两地的10个县(市、区),预计年供水量将达到6.88亿立方米,足以满足267万居民的日常用水需求,并为90万亩农田提供稳定的灌溉水源。

资料图:夹岩水利枢纽。(贵州水投供图)

  作为毕大供水工程的核心控制性工程,王家坝隧洞全长19.6千米,最大埋深达480米,衬砌断面直径达3米,设计流量为每秒6立方米。其建设难度之大,被誉为整个毕大供水工程中的“硬骨头”。

  “王家坝隧洞是整个毕大供水工程中难度最大的工程。”贵州水投夹岩公司负责人介绍道。在施工过程中,工程团队遇到了煤系地层、高地应力、软弱围岩、涌水涌泥等不良地质情况,特别是煤与瓦斯突出、有毒有害气体、隧洞严重变形等重大安全风险,这些都严重影响了施工进度。

  为加速隧洞贯通,贵州水投集团联合参建各方,共同攻克了“瓦斯防治、开挖支护、变形处理”三大技术难题。在瓦斯防治方面,工程参建方充分借鉴相关行业经验,开展专题研究,制定专项方案,采取24小时通风、自动与人工监测相结合的防控措施,有效保障了施工安全。

  针对煤系地层自性妇❌❌❌❌❌❌JAPPT稳性差的特点,参建方还采取了长探孔、短开挖、强支护的施工方案,确保了隧洞的安全开挖。

  在变形处理方面,面对隧洞部分区域发生的严重变形,工程团队采取人工配合小型机械分幅分部处理、加强通风与监测等措施,成功攻克了变形难题。

  隧洞衬砌过程中还采用了针梁台车,实现了施工流水化作业,达到了每天一仓12米的浇筑速度,保证了王家坝隧洞的顺利完工。(完)

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