• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Field and numerical investigation into pipe bursting and horizontal directional drilling pipeline installation ground movements.
【24h】

Field and numerical investigation into pipe bursting and horizontal directional drilling pipeline installation ground movements.

机译：管道爆破和水平定向钻井管道安装地面运动的现场和数值研究。

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

Pipe bursting and horizontal directional drilling (HDD) are two common construction techniques used to install new pipelines in the subsurface without the use of an open trench. Because of the relatively young age of these trenchless technologies, solutions are not readily available to predict soil movements in the shallow near-surface environment. Instead, designers of pipe bursting and HDD installations rely on generalized rules of thumb to determine the required depths of cover and clearances between new installations and existing utilities and/or structures to ensure detrimental damage does not occur. Current pipe bursting rules of thumb require clearances based on the degree of upsizing of the replacement pipe. Unfortunately, these guidelines do not consider the depth of the pipe bursting installation, magnitude of the overburst, soil properties, location and relative condition of the existing utility and/or structure in relation to the new installation, or the allowable deflection for an existing utility/structure. Current HDD industry rules of thumb are based on installation depth and product pipe diameter. Unfortunately, these guidelines do not consider the diameter of the bore, soil properties, magnitude of the bore pressurization induced displacement fields, location and relative condition of the existing utility and/or structure in relation to the new installation, or the allowable deflection for an existing utility/structure. A lack of published case histories involving these trenchless technologies increases the difficulty in assessing whether current rules of thumb are sufficient to adequately protect existing utilities and/or structures in response to pipe bursting or HDD installations.; A research program, originating back to 1996 at the University of Waterloo, Waterloo, Ontario, Canada initiated research efforts into the behaviour of polyethylene pipes during installation using HDD construction practices. Monitored parameters during installation advanced the understanding of the installation process. Work completed and presented as part of this research builds on this initiative expanding it to include additional instrumentation and the development of an updated data acquisition system. Results of this research work have been used to assess HDD rules of thumb associated with the behaviour of the pipe and subsurface during and following installation. (Abstract shortened by UMI.)
机译：爆管和水平定向钻探（HDD）是用于在不使用明沟的情况下在地下安装新管道的两种常见施工技术。由于这些非开挖技术的年龄相对较小，因此尚无法获得用于预测浅层近地环境中土壤运动的解决方案。取而代之的是，爆管和HDD安装的设计人员依靠通用的经验法则来确定所需的覆盖深度以及新安装与现有公用设施和/或结构之间的间隙，以确保不会发生有害的损坏。当前的管道爆裂经验法则要求根据更换管道的尺寸来确定间隙。不幸的是，这些指南没有考虑爆管安装的深度，爆破的幅度，土壤特性，现有公用设施和/或与新安装有关的结构的位置和相对状况，或现有公用设施的允许挠度/结构体。当前的HDD行业经验法则基于安装深度和产品管道直径。不幸的是，这些指南没有考虑孔的直径，土壤特性，孔加压引起的位移场的大小，现有公用设施和/或结构相对于新设备的位置和相对状况，或者未考虑管道的允许挠度。现有的公用事业/结构。缺乏涉及这些非开挖技术的案例历史记录，增加了评估当前经验法则是否足以对管道爆裂或HDD安装做出充分保护的现有公用设施和/或结构的难度。一项始于1996年的研究计划始于加拿大安大略省滑铁卢的滑铁卢大学，它采用HDD构造方法对聚乙烯管道在安装过程中的性能进行了研究。安装过程中受监视的参数使您对安装过程有了更深入的了解。作为这项研究的一部分，已完成并提出的工作建立在该倡议的基础上，将其扩展为包括其他仪器和开发更新的数据采集系统。这项研究工作的结果已用于评估HDD的经验法则，这些经验法则与在安装过程中及安装后管道和地下管道的行为有关。 （摘要由UMI缩短。）

著录项

  • 作者

    Duyvestyn, Glenn Martin.;

  • 作者单位

    University of Waterloo (Canada).;

  • 授予单位 University of Waterloo (Canada).;
  • 学科 Engineering Civil.
  • 学位 Ph.D.
  • 年度 2005
  • 页码 479 p.
  • 总页数 479
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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