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</div> </div> <div class="content"><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">武漢浩川?？扑鹿こ逃邢薰緦I<a href='http://www.popechart.com/' target='_blank' class='key_tag'><font color=#2086ee><strong>沉井下沉</strong></font></a>，積累了豐富的經驗。由于大型沉井其自重較大且刃腳功能需要（接觸地基的斷面?。?，當施工場地表土地基承載力很低時，在制作第一段沉井前，應在地基表面鋪設砂墊層，并沿井壁周邊刃腳下鋪設承墊木。沉井澆筑前下刃腳部位做墊層，主要考慮沉井的自重與地基承載力的關系，以確保沉井制作完成后，避免沉井傾斜或不均勻沉降而產生裂縫，或產生垂直偏差或整體偏位需糾偏。沉井下沉，不論采用排水下沉或不排水下沉。沉井設計和施工時通常用下沉系數（即<a href='http://www.popechart.com/product/cjsg2e3/' target='_blank' class='key_tag'><font color=#2086ee><strong>沉井施工</strong></font></a>階段自重與阻止下沉的井壁四周土的摩擦力、刃腳踏面阻力等的比值）估算沉井能否順利下沉。當下沉系數不滿足時，要采取減小摩擦力的方法，以及增加重量等措施。故一般沉井可采取一次制作（灌筑）,依次下沉;分段制作、接高，依次下沉；或制作與下沉交替進行。此時，沉井整體已具有一定的強度和剛度，并可滿足調節不均勻沉降的需求。注重考慮的是如何下沉，所以在下沉過程中就不需要做墊層了。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;"><img src="/data/upload/image/20190428/1556412995927879.jpg" title="沉井下沉" alt="沉井下沉" width="500" height="333" border="0" vspace="0" style="width: 500px; height: 333px;"/></span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;"> </span></p><p><br/></p></div> <h3 class="tag">本文網址：http://www.popechart.com/news/404.html </h3> <h3 class="tag">關鍵詞：<a href="http://www.popechart.com/tag/%E6%B2%89%E4%BA%95%E4%B8%8B%E6%B2%89">沉井下沉</a>,<a href="http://www.popechart.com/tag/%E6%B2%89%E4%BA%95%E4%B8%8B%E6%B2%89%E5%B7%A5%E7%A8%8B">沉井下沉工程</a>,<a href="http://www.popechart.com/tag/%E6%B2%89%E4%BA%95%E4%B8%8B%E6%B2%89%E6%96%B9%E6%B3%95">沉井下沉方法</a> </h3> <div class="page">上一篇：<a href="http://www.popechart.com/news/403.html">沉井下沉工程技術分析</a><br />下一篇：<span><a href="http://www.popechart.com/news/405.html">沉井產生傾斜的可能原因及解決</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 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