Improved Geotechnical Site Characterization Using Measurement While Drilling
| 项目名称： | Improved Geotechnical Site Characterization Using Measurement While Drilling |
| 摘要： | The objectives of this research are (1) to provide proof-of-concept for measurement while drilling (MWD) in Illinois, (2) to provide guidance to Illinois Department of Transportation (IDOT) on using MWD to more accurately identify site stratigraphy, (3) to develop methods to obtain Illinois-specific correlations to soil and rock properties using the drilling parameters obtained from the four categories, and (4) to explore use of MWD for design of driven pile and drilled shaft deep foundations. The goals of this research are to unlock MWD as a technique to complement standard technology practices of SPT borings, rock coring, and Rimac testing (as well as complementing emerging technologies such as cone penetrometer test and geophysics in the near future), to expand subsurface investigations to include MWD boreholes alongside current SPT borings, and to improve the reliability of interpreted ground conditions. Using MWD in IDOT practice will provide higher quality geotechnical and geological subsurface data that will reduce the cost of field exploration, design, and construction of IDOT infrastructure and provide drill rig performance information (e.g., drill component damage detection, time-to-repair using machine learning). Specific beneficial outcomes will involve correlating MWD data with SPT N-value equivalents; new tools to distinguish glacial tills, soft weathered rock, and harder competent rock layers; improved rock property data such as recovery, rock-quality designation, rate, and unconfined strength; standardized methods for collecting MWD data and developing boring logs that are gINT compatible. |
| 状态： | Active |
| 资金： | 562500 |
| 资助组织： | Illinois Department of Transportation |
| 开始时间： | 20210816 |
| 预计完成日期： | 20240815 |
| 主题领域： | Data and Information Technology；Geotechnology；Highways |
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