湖北首例！武天高速项目嵩阳枢纽互通两座既有预应力斜腿钢构天桥顺利拆除
<section style="letter-spacing: 1px;line-height: 2;"><section style=" margin-top: 10px;margin-bottom: 10px;" powered-by="xiumi.us"><section style="width: 100%;transform: rotate(0deg);"><section style="width: 50px;height: 4px;margin-left: auto;background-color: rgb(44, 127, 201);"><svg viewbox="0 0 1 1" style="float:left;line-height:0;width:0;vertical-align:top;"></svg></section></section><section style="margin-top: -4px;padding: 10px;background-color: rgba(22, 108, 184, 0.07);"><p style="text-wrap: wrap;" powered-by="xiumi.us">日前记者获悉，历时22天，武天高速一标武汉段跨汉蔡高速GL5预应力斜腿钢构天桥拆除作业，于9月24日顺利完成。本次施工作业在不中断交通的条件下，采用两阶段导边施工，对半幅高速封闭导行、两座跨高速预应力斜腿钢构天桥同步拆除的方案，为湖北省首例。</p></section></section><p style="text-wrap: wrap;" powered-by="xiumi.us"><br/></p><section style=" text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;" powered-by="xiumi.us"><section style="vertical-align: middle;display: inline-block;line-height: 0;"></section></section><section powered-by="xiumi.us"><p style="text-wrap: wrap;"><br/></p><p style="text-wrap: wrap;">嵩阳枢纽互通为武天高速线路控制节点，今年9月以来，受京港澳高速改扩建施工封闭交通影响，大量社会车辆选择汉蔡高速作为导行线路，那么如何在保障车辆安全通行下，顺利完成两座跨汉蔡既有天桥的拆除工作，成了本次施工的最大难点。</p><p style="text-wrap: wrap;"><br/></p></section><section style="display: inline-block;width: 100%;border-width: 0px 0px 0px 3px;border-style: solid;border-left-color: rgb(44, 127, 201);border-right-color: rgb(44, 127, 201);padding: 10px;" powered-by="xiumi.us"><p style="text-wrap: wrap;" powered-by="xiumi.us">据项目技术负责人介绍，为保证方案的成功实施，项目部坚持“技术先行保安全，施工协调两不误”的原则，历经两轮专家论证评审，克服“斜腿钢构预应力桥”拆除过程中产生不可预见水平推力的风险问题，采用先断预应力后“积木拆卸”的方式将整个天桥切割为44块（单块最大重量16.05吨）。</p></section><p style="text-wrap: wrap;" powered-by="xiumi.us"><br/></p><section style=" text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;" powered-by="xiumi.us"><section style="vertical-align: middle;display: inline-block;line-height: 0;"></section></section><section powered-by="xiumi.us"><p style="text-wrap: wrap;"><br/></p><p style="text-wrap: wrap;">“切割过程中涉及多次复杂应力变化，我们设计方也是对项目部提供的计算书做了大量复核，确保万无一失。”中交二公院武天高速项目设代组负责人梅春告诉记者，“切割拆除，我们按照先切割防撞墙，再切割两侧板面，接着切割中间板面，最后切断主梁的拆除思路，北侧拆完立即对另外半幅高速封闭倒边，一步一步推进。”</p><p style="text-wrap: wrap;"><br/></p></section><p style="text-wrap: wrap;" powered-by="xiumi.us">最终在不中断高速通行的条件下，湖北武天高速投资建设有限公司严格按照拆除方案，采取单幅双向通行的导行措施进行施工，按期完成了既定拆除任务，同时，建设单位还积极与多方沟通协作，采取进一步优化半幅占道宽度的方案，解决了斜腿钢构桥底部一侧存在超宽车辆无法通行的难题。<br/></p><p style="text-wrap: wrap;" powered-by="xiumi.us"><br/></p><section style=" text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;" powered-by="xiumi.us"><section style="vertical-align: middle;display: inline-block;line-height: 0;"></section></section><section powered-by="xiumi.us"><p style="text-wrap: wrap;"><br/></p><p style="text-wrap: wrap;">嵩阳枢纽互通跨线施工的顺利完成，不仅为年底全面完成跨线施工打下坚实基础，也为省内后续在不中断交通条件下拆除跨高速预应力斜腿钢构桥提供了“武天经验”。</p><p style="text-wrap: wrap;"><br/></p><section style="white-space: normal;box-sizing: border-box;font-size: 16px;margin-bottom: 0px;"><section powered-by="xiumi.us" style="margin-top: 0.5em;margin-bottom: 0.5em;box-sizing: border-box;"><section style="height: 1px;background-color: rgb(160, 160, 160);box-sizing: border-box;line-height: 0;"><br/></section></section></section><p style="margin: 0cm 0cm 0.0001pt;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;line-height: 19.2pt;text-align: left;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="letter-spacing: 0.544px;max-width: 100%;color: rgb(136, 136, 136);font-size: 14px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="color: rgb(136, 136, 136);font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;font-size: 14px;letter-spacing: 0.544px;text-align: left;">来</span><span style="color: rgb(136, 136, 136);font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;font-size: 14px;letter-spacing: 0.544px;text-align: left;">源：蔡甸融媒<span style="letter-spacing: 1px;text-wrap: wrap;">记者 吴亭 杨铭 通讯员 鄢健</span></span></span></p><p style="margin: 0cm 0cm 0.0001pt;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;line-height: 19.2pt;text-align: left;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="letter-spacing: 0.544px;max-width: 100%;color: rgb(136, 136, 136);font-size: 14px;box-sizing: border-box !important;overflow-wrap: break-word !important;">制作：<span style="letter-spacing: 1px;text-wrap: wrap;">韩晓民</span> | </span><span style="color: rgb(136, 136, 136);letter-spacing: 0.544px;font-size: 14px;">编辑：方丹 熊霞 | </span><span style="letter-spacing: 0.544px;color: rgb(136, 136, 136);font-size: 14px;">责编：方军</span></p><p style="margin: 0cm 0cm 0.0001pt;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;line-height: 19.2pt;text-align: left;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="color: rgb(136, 136, 136);font-size: 14px;max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="letter-spacing: 0.544px;max-width: 100%;line-height: 19.2pt;"><strong style="letter-spacing: 0.544px;"><span style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="letter-spacing: 0.544px;"><span style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;">出品：</span></strong>蔡甸区融媒体中心</span></strong></span></span></p><p style="margin: 0cm 0cm 0.0001pt;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;line-height: 19.2pt;text-align: left;box-sizing: border-box !important;overflow-wrap: break-word !important;"><br/></p><p style="margin: 0cm 0cm 0.0001pt;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif;letter-spacing: 0.544px;line-height: 19.2pt;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="letter-spacing: 0.544px;max-width: 100%;color: rgb(136, 136, 136);font-size: 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!important;overflow-wrap: break-word !important;"><span style="letter-spacing: 0.544px;max-width: 100%;color: rgb(136, 136, 136);font-size: 14px;box-sizing: border-box !important;overflow-wrap: break-word !important;">投稿邮箱：2187431778@qq.com</span></p></section></section><link rel="stylesheet" href="//bbs.whcdrm.com/source/plugin/wcn_editor/public/wcn_editor_fit.css?v134_g3y" id="wcn_editor_css"/>
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