最终接头M止水带比例缩尺水密推拉试验研究
Research on reduced-scale watertight push-pull test of final joint M-typed waterstop
薛梦奇 1朱岭 1锁旭宏2
作者信息
- 1. 中交一航局第二工程有限公司,山东 青岛 266071
- 2. 中交一航局第二工程有限公司,山东 青岛 266071;兰州交通大学测绘与地理信息学院,甘肃 兰州 730070
- 折叠
摘要
深中通道最终接头止水密封系统由一道M止水带和一道充气止水带组成.M止水带一端安装在扩大段,另一端安装在推出段.由于M止水带体积巨大现场实际工况复杂,因此进行最终接头M止水带比例缩尺水密推拉试验.M止水带比例缩尺试验分为水密试验和推拉试验,推拉试验工装由水密试验工装改造而成.2次试验可以直观地在陆上观察到M止水带的水压承受情况及推拉后M止水带变化状态,2次试验分别验证了 M止水带在实际应用中的水密性能及伸缩回弹性能,结合试验工况可以制定相关措施,有效避免了实际应用中出现突发问题.
Abstract
The water-stop sealing system for the final joint of the Shenzhong-Zhongshan Link is composed of an M-typed waterstop and an inflatable waterstop.One end of the M-typed waterstop is installed in the expansion section and the other end is installed in the push-out section.Due to the huge volume of the M-typed waterstop and the complexity of the actual working conditions on site,the final joint M-typed waterstop reduced-scale watertight push-pull test was conducted.The reduced-scale test of M-typed waterstop is divided into watertight test and push-pull test,and the push-pull test tooling is transformed from the watertight test tooling.The two tests can intuitively observe the water pressure bearing condition of the M-typed waterstop and the change state of the M-typed waterstop after pushing and pulling on the land,and the two tests respectively verify the watertight performance and telescopic elastic performance of the M-typed waterstop in practical application,and relevant measures can be formulated in combination with the test conditions,which effectively avoids sudden problems in practical application.
关键词
钢壳沉管隧道/推拉式最终接头/隧道防水/M止水带/比例缩尺试验Key words
steel shell immersed tunnel/push-pull final joints/tunnel waterproof/M-typed waterstop/reduced-scale test引用本文复制引用
出版年
2024
NETL
NSTL
万方数据