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style="font-size: 14px; font-family: 微軟雅黑, "Microsoft YaHei";">地址：武漢市東湖新技術開發區關南四路35號</span></p><p style="line-height: 2em;"><span style="font-size: 14px; font-family: 微軟雅黑, "Microsoft YaHei";">網址 : www.popechart.com </span></p><p><br/></p></div> </div> </div> <div class="right"> <div class="sitemp clearfix"> <h2> 水庫淤積形成原因 </h2> <div class="site">您的當前位置： <a href="http://www.popechart.com/">首頁</a> >> <a href="http://www.popechart.com/news/">新聞中心</a> >> <a href="http://www.popechart.com/news/xydt/">行業新聞</a> </div> </div> <div class="content">  <div class="news_detail"> <h1 class="title">水庫淤積形成原因</h1> <div class="info_title clearfix"> <h3 class="title_bar"> 發布日期：<span>2021-06-21</span> 作者：<span>武漢浩川?？扑鹿こ逃邢薰?/span> 點擊：<span><script src="http://www.popechart.com/data/include/newshits.php?id=736"></script></span> </h3> <div class="share">  <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div class="content"><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">水庫淤積是水庫設計和管理中的一個難題。在河道上興建水庫會改變河流的水流條件和泥沙運動狀態，使泥沙在水庫庫區內淤積，從而降低水庫的使用效益，甚至導致水庫失效報廢。因此，人類在修建水庫時不能不認真考慮泥沙淤積和水庫壽命問題。</span></p><p><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">水庫是如何積淤的？</span></p><p style="text-align: center; line-height: 1.75em;"><img src="/data/upload/image/20190516/1557974452801770.jpg" alt="水庫淤積.jpg" width="500" height="333" border="0" vspace="0" title="水庫淤積.jpg" style="width: 500px; height: 333px;"/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">水庫淤積與許多因素有關，其中zui主要的原因是，水庫蓄水后，庫區和回水段的水深及過水斷面積都增大了，水面坡度減小，導致庫水的流速減緩，輸沙能力降低，其挾帶的泥沙就部份或全部地在水庫庫底沉積下來。雖然，人們可以采取適當措施減緩淤積的速度，但是，水庫淤積通常是很難*的。 </span></p><p><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">河流中的泥沙運移和淤積是地球表面泥沙運動的一個組成部份。地球表面的泥沙運動可分為侵蝕、搬運和沉積三個過程，其動力有水、風、冰和重力等，泥沙運動和地球的內應力作用一起塑造著地球的外貌。當談到泥沙運動時，侵蝕是指巖石或土壤被剝離(或溶蝕)、并被移走的過程，侵蝕所產生的土壤或巖石顆粒即稱為泥沙；如果按照搬運方式來劃分，泥沙有兩種，懸浮在水流中運動的是懸移質泥沙，而沿河底滾動、滑動或躍移的為推移質泥沙；當泥沙由運動狀態變為靜止狀態時稱為泥沙的沉積，泥沙在水庫中沉積就形成了水庫淤積。 </span></p><p><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">泥沙在水庫中淤積的過程是，當水流進入庫尾時，粗沙首先沉積下來，逐漸形成三角洲；同時異重流挾帶著細沙向壩前推進，并沿途不斷擴散，這樣細沙將沉積在整個水庫范圍內，其中大部份沉積在壩前；壩前主河道內的淤積物稱為底積層，原河漫灘上的稱河漫灘淤積。由于水庫回水的影響，在水庫庫尾以上的河道內還會發生泥沙淤積，稱為回水區淤積。 </span></p><p><br/></p></div> <h3 class="tag">本文網址：http://www.popechart.com/news/736.html </h3> <h3 class="tag">關鍵詞：<a href="http://www.popechart.com/tag/%E6%B0%B4%E5%BA%93%E6%B7%A4%E7%A7%AF">水庫淤積</a>,<a href="http://www.popechart.com/tag/%E6%AD%A6%E6%B1%89%E6%B0%B4%E4%B8%8B%E5%88%87%E5%89%B2">武漢水下切割</a>,<a href="http://www.popechart.com/tag/%E6%AD%A6%E6%B1%89%E6%B0%B4%E4%B8%8B%E5%88%87%E5%89%B2%E5%85%AC%E5%8F%B8">武漢水下切割公司</a> </h3> <div class="page">上一篇：<a href="http://www.popechart.com/news/735.html">水下管道鋪設概述</a><br />下一篇：<span><a href="http://www.popechart.com/news/737.html">水下打撈方法</a></span></div> </div> <div class="relateproduct relate"><h4>Z近瀏覽：</h4> <div class="content"> <ul id="relate_n" class="news_list clearfix"> </ul> </div> </div>  <div class="relate_list"> <div class="relateproduct relate"><h4>相關產品：</h4> <div 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$(".kf-content").animate({opacity:'show'},'normal',function(){ $(".kf-content").show(); }); $(this).hide(); }); $('.close-btn').on('click',function(){ $(".kf-content").animate({width:'hide',opacity:'hide'},'normal',function(){ $(".kf-content").hide(); }); $('.kf-open').show(); }); </script> <script type="text/javascript"> var href="data/images/other/20190422092235_500.png"; if(href=="") { $(".code").css("display","none"); } var currentid='8'; if(currentid!='7') { switch(currentid) { case '1': $('.kf_btn').css('background','url("http://www.popechart.com/template/default/images/kf/qing.png") left 33px no-repeat'); $('.top_bg').css('background','url("http://www.popechart.com/template/default/images/kf/qing1.png") left bottom no-repeat'); $('.othercolor').css('background','#40c0ac'); break; case '2': $('.kf_btn').css('background','url("http://www.popechart.com/template/default/images/kf/puper.png") left 33px no-repeat'); 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$('.top_bg').css('background','url("http://www.popechart.com/template/default/images/kf/cheng1.png") left bottom no-repeat'); $('.othercolor').css('background','#e65a22'); break; case '6': $('.kf_btn').css('background','url("http://www.popechart.com/template/default/images/kf/green.png") left 33px no-repeat'); $('.top_bg').css('background','url("http://www.popechart.com/template/default/images/kf/green1.png") left bottom no-repeat'); $('.othercolor').css('background','#78cf1b'); break; case '8': $('.float-kf').css('display','block'); break; case '9': $('.float-kf').css('display','none'); $('.kf-switch').css('display','block'); break; } } var _windowScrollTop=0; //滾動條距離頂端距離 var _windowWidth=$(window).width(); //窗口寬度 $(window).scroll(actionEvent).resize(actionEvent); //監聽滾動條事件和窗口縮放事件 //響應事件 function actionEvent(){ _windowScrollTop = $(window).scrollTop(); //獲取當前滾動條高度 // _windowWidth=$(window).width();//獲取當前窗口寬度 moveQQonline();//移動面板 } //移動面板 function moveQQonline(){ 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