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广东麻将QUANGUOXIAOSHOUREXIAN:18031801234

高速铁路隧道中埋式止水带施工技术

作者:hengke来源:衡水茂发橡胶制品有限公司时间:2018-06-04 08:19 访问量:
描述:完全控制中埋式橡胶止水带按设计意图实现其设计空间位置及状态,推动隧道中埋式止水带安装工艺规范化、程序化和标准化施工管理。
中埋式止水带

高速铁路隧道中埋式止水带施工技术

中埋式橡胶止水带是在浇筑混凝土时被预埋在变形缝、施工缝内与混凝土连成一体,可有效地防止构筑物变形缝、施工缝处的渗水、漏水并起到减震缓冲等作用,从而确保工程构筑物防水要求的止水结构产品。隧道止水带安装是复合式衬砌隧道施工极为常规的一道工序,中埋式橡胶止水带一般设置在隧道洞口明暗挖交界或洞身围岩类别变化分界的变形缝处以及隧道二次衬砌施工缝处,上述“两缝”是隧道结构防水的薄弱环节,止水带安装质量的好坏直接影响到隧道防水质量,正是由于其工序、工艺简单,往往施工中其安装工艺细节容易被忽视,突出表现为工程实体中止水带的空间位置及状态与设计图纸相差甚远或误差较大,给隧道防水留下了较大的质量隐患。从目前国内已竣工并投入运营的隧道情况看,仍存在较多渗漏水现象,影响了隧道的行车安全和洞内设备的正常使用。目前国内尚没有中埋式止水带安装规范和成熟的工艺,即使是象中铁隧道集团这样国家级的专业隧道施工队伍,也未必做到了工艺上的精益求精。

一、 中埋式橡胶止水带施工方案

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二、工艺流程及操作要点

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三、中埋式止水带安装工艺流程

1、ZONGXIANGDINGWEIKAJUZHIZUO

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2、ZONGXIANGZHISHUIDAIANZHUANG

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四、中埋式橡胶止水带安全质量卡控要点安全卡控要点

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五、中埋式橡胶止水带质量卡控要点

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