延安王瑶水库扩容工程迎关键进展 两座堆泥库投用破解清淤难题|国产人妻人伦又粗又大爽歪歪口述

1. 国产人妻人伦又粗又大爽歪歪口述小说

  中新网天津11月7日电 (记者 周亚强)全国150项重大水利工程之一的延安王瑶水库扩容工程迎来关键进展。记者7日从中交天津航道局获悉,随着马家沟、安渠两座堆泥库大坝正式完工并投入使用,制约工程推进的淤泥处置难题得到有效解决,水库清淤工作进入全面加速阶段。

图为马家沟堆泥库大坝。(中交天津航道局供图)

  王瑶水库是延安重要的“生命之库”,其扩容工程被纳入国家“十四五”水安全保障规划,计划清淤总量超过1600万立方米。面对黄土高原地区“山多平地少”的特殊地形,如何妥善处置大量清淤淤泥成为工程推进中的一大挑战。

  “搞定淤泥堆放,就等于打通了工程推进的关键堵点。”中交天航局王瑶水库扩容工程项目经理刘太训介绍,项目团队创新提出“依山建库、以坝纳泥”的解决方案,利用马家沟、安渠两处天然山谷地形,建成了两座总纳泥量达600万立方米的堆泥库,其容量相当于2400个标准游泳池,可容纳王瑶水库近60%的水下清淤量,成功破解了黄土高原水库清淤“无处纳泥”的行业困境。

  淤泥“安家”问题解决后,如何高效运输成为另一大考验。工程需将库底淤泥翻越53米高差,输送至14公里外的堆泥库。为此,项目专门调遣国内首艘大功率可拆装环保绞吸船“浚川”进场作业。这艘“清淤利器”配备500千瓦绞刀,最大挖深25米,每小时标准疏浚量可达1200立方米,即便面对深水区域的顽固淤积也能轻松应对。

国内首艘大功率可拆装环保绞吸船“浚川”进场作业。(中交天津航道局供图)

  值得一提的是,项目配套建设的三级接力泵站创新采用全电驱动,替代传统柴油机组,实现清淤全过程“零油耗、零污染、无泄漏”,每年可减少碳排放6000余吨。通过搭建船泵一体化“智慧物联”系统,实现了疏浚船、泵站与大坝的智能联动和远程操控。

  随着堆泥库正式投用,“浚川”船的清淤效能得以充分释放,目前日均清淤量可超2万立方米。按计划,未来8个月内将完成600万立方米的清淤任务。这些淤泥经沉降和无害化处理后,将转化为约1500亩高标准良田或林地,实现从“工程淤泥”到“生态资源”的价值提升。

  工程全面完工后,王瑶水库将恢复有效库容超1600万立方米,防洪标准大幅提升,为下游60万民众生命财产安全和420处革命旧址提供更加坚实的水安全保障。(完)

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