• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Cold regions engineering 2009 : Cold regions impact on research, design, and construction >Spring Thaw Predictor And Development Of Real Time Spring Load Restrictions
【24h】

Spring Thaw Predictor And Development Of Real Time Spring Load Restrictions

机译：弹簧解冻预测器和实时弹簧载荷限制的发展

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

In the fall of 2006, the State of New Hampshire Department of Transportation (NHDOT) began a two - year study to develop a Real Time Spring Load Restriction Methodology. The methodology is intended to guide the Maintenance Districts in their management of spring load restrictions by identifying the beginning and duration of spring thaw. Two methods will be used to determine how long load restrictions will be needed after the date of actual thaw: frost tube readings and computer model forecasting.rnA total of nine sites in the central part of the state were instrumented with frost tubes, water wells, subsurface temperature and moisture sensors, and weather stations. Falling Weight Deflectometer (FWD) tests were conducted at those sites from January 2008 through June 2008 with an additional test in August 2008 and another in October 2008.rnThe U.S. Forest Service is continuing its work with the current developer of the Enhanced Integrated Climatic Model (EICM), which is embedded in the Mechanistic Pavement Design Procedure (MEPDG). It is proposed to use the EICM (isolated from the MEPDG) with the 7 - 10 day forecast temperatures to predict thaw.rnThis paper describes the overall project, data collected to date, and preliminary results.
机译：在2006年秋天，新罕布什尔州交通运输部（NHDOT）开始了为期两年的研究，以开发实时弹簧载荷限制方法。该方法旨在通过确定弹簧解冻的开始和持续时间来指导维护区管理弹簧载荷限制。实际解冻之日后，将使用两种方法来确定需要多长时间限制负载：霜管读数和计算机模型预测。rn在该州中部地区的总共9个站点安装了霜管，水井，地下温度和湿度传感器以及气象站。 2008年1月至2008年6月在这些地点进行了落锤偏折仪（FWD）测试，2008年8月又在2008年10月进行了另一次测试。美国森林服务局正在与增强型综合气候模式的开发者继续开展工作（ EICM），它嵌入在机械路面设计程序（MEPDG）中。建议使用EICM（与MEPDG隔离）结合7-10天的预报温度来预测融化。本文描述了整个项目，迄今为止收集的数据以及初步结果。

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