• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transportation Research Record >Deflections of Polyvinyl Chloride Pipes in Clayey Backfill
【24h】

Deflections of Polyvinyl Chloride Pipes in Clayey Backfill

机译：粘土回填料中聚氯乙烯管的变形

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Seven different rib profiled polyvinyl chloride (PVC) pipes were investigated in a test facility developed at the Bangladesh University of Engineering and Technology. The pipes were backfilled with native Dhaka clay. Use of native soil as backfill material saves the additional costs associated with importing materials and conserves resources such as granular soil. The test facility was designed to study the performance of buried pipes under a quasi-live load. The study revealed that the PVC pipes with diameters ranging from 203 to 790 mm, areas per unit lengths of 13 to 34 mm~2/mm, and moment of inertia per unit length of 266 to 7,925 mm~4/mm performed reasonably well in the backfill of native Dhaka clay. Pipes were tested in three different burial depths: 600, 900, and 1,200 mm. Deflections of the pipes corresponding to a maximum wheel load of 73.3 kN (16,500 lbf) were between 0.17% and 0.64% of the pipe diameters. Deflections were calculated with the current design methods for live load and compared with the measurements. The comparison revealed that a method based on a load spreading rate of 1.15 times the depth calculated the effect of surface live load reasonably well. However, a method based on analysis of the soil-pipe interaction is required to account for live load over a wider range of installation conditions.
机译：在孟加拉国工程技术大学开发的测试设施中研究了七种不同的肋形聚氯乙烯（PVC）管。管道用本地达卡粘土回填。使用天然土壤作为回填材料可节省与进口材料相关的额外成本，并节省诸如粒状土壤的资源。该测试设备旨在研究准活荷载下埋管的性能。研究表明，直径为203至790 mm，每单位长度面积为13至34 mm〜2 / mm和每单位长度惯性矩为266至7,925 mm〜4 / mm的PVC管在室温下表现良好。达卡土的回填土。在三种不同的埋深下对管道进行了测试：600、900和1200 mm。对应于最大车轮载荷为73.3 kN（16,500 lbf）的管道挠度为管道直径的0.17％至0.64％。使用当前的活荷载设计方法计算挠度，并将其与测量值进行比较。比较表明，一种基于深度的1.15倍载荷扩展率的方法，可以很好地计算表面活荷载的影响。但是，需要一种基于土管相互作用分析的方法来考虑更广泛安装条件下的活荷载。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号