Peaking Deflections of Flexible Thermoplastic Pipe

机译：挠性热塑性塑料管的峰值挠度

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Most thermoplastic pipes exhibit peaking behavior during the initial backfilling process. It is shown with the actual field data that the peaking deflections can be beneficial for minimizing the long-term deflections of the pipe. An approach similar to the one proposed by Spangler is used to derive a formula for estimating the peaking deflections of thermoplastic pipe due to forces generated during the initial backfilling. The formula is tested in light of a number of field installation cases. The results show that the proposed formula predicts peaking deflections of both PVC and HDPE pipes accurately under a variety of backfilled conditions.

机译：大多数热塑管在初始回填过程中都会出现峰化现象。实际的现场数据表明，峰值挠度可能有利于最大程度地减小管道的长期挠度。一种类似于Spangler提出的方法，可用来推导一个公式，用于估算由于初始回填过程中产生的力而导致的热塑性管的峰值挠度。该公式已根据许多现场安装案例进行了测试。结果表明，所提出的公式可准确预测各种回填条件下PVC和HDPE管的峰值挠度。

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来源
《Pipeline Division Specialty Conference; 20050821-24; Houston,TX(US)》|2005年|P.1089-1100|共12页
会议地点 HoustonTX(US)
作者
Teruhisa Masada; Shad M. Sargand;
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作者单位

Department of Civil Engineering, Ohio University, Athens, Ohio, 45701-2979;

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原文格式 PDF
正文语种 eng
中图分类管道运输;
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专利

1. Peaking Deflections of Flexible Pipe during Initial Backfilling Process [J] . Teruhisa Masada, Shad M. Sargand Journal of Transportation Engineering . 2007,第2期

机译：初始回填过程中挠性管的峰值挠度
2. Performance of buried HDPE pipes - part I: peaking deflection during initial backfilling process [J] . Zhou M., Du Y. J., Wang F., Geosynthetics International . 2017,第4期

机译：HDPE埋管的性能-第一部分：初始回填过程中的峰值挠度
3. Analytical model for tensile armors lateral deflections and buckling in flexible pipes [J] . Li Xiaotian, Vaz Murilo Augusto, Custodio Anderson Barata Marine Structures . 2019,第MARa期

机译：挠性管中拉伸装甲的横向变形和屈曲的解析模型
4. Peaking Deflections of Flexible Thermoplastic Pipe [C] . Teruhisa Masada, Shad M. Sargand, American Society of Civil Engineers(ASCE) Pipeline Division Specialty Conference . 2005

机译：柔性热塑性管的峰值挠度
5. Measurement of backfill effects on circumferential bending in lined-corrugated thermoplastic pipes and fibre reinforced cement pipes. [D] . Munro, Scott Matthew. 2006

机译：测量衬里波纹热塑性管和纤维增强水泥管中回填对周向弯曲的影响。
6. Lay-Up and Consolidation of a Composite Pipe by In Situ Ultrasonic Welding of a Thermoplastic Matrix Composite Tape [O] . Riccardo Dell’Anna, Francesca Lionetto, Francesco Montagna, 2018

机译：热塑性基体复合带的原位超声焊接敷设和固结复合管
7. Deflection of a flexible pipe culvert when stressed beyond the elastic limit [O] . Rahman, Abu Sharf Misih-ur 1950

机译：应力超过弹性极限时，挠性涵管的挠度
8. Method for Prediction of Flexible Pipe Deflection (Revised May 1, 2000) [R] . 2000

机译：柔性管挠度预测方法（2000年5月1日修订）

Peaking Deflections of Flexible Thermoplastic Pipe

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