“(It’s) very disruptive, damaging, and just overall is not good.” “If every time a utility needs to build something across the right-of-way, you would have to block the road, dig it up, open a trench, lay down the pipeline or the pipe or cables, etc. Horizontal directional drilling can be used for smaller-scale purposes such as installing utility cables or pipelines and is quickly becoming a popular alternative to the trenching method, which involves digging or cutting up the ground. Three main stages of a typical horizontal directional drilling process: pilot bore drilling, reaming and pipe pulling. “Horizontal directional drilling: State-of-the-art review of theory and applications.” Tunnelling and Underground Space Technology 72: 162-173. Aria Ratnam, Shun Dong, and Cong Zeng (2018). Hall Endowed Professor, leads the project with Heather Shoup and Joseph Angeli, IDOT’s Central Bureau of Materials geotechnical engineer and District 6 permit technician, respectively.
Youssef Hashash, University of Illinois Urbana-Champaign Department of Civil and Environmental Engineering William J.
To serve this growing need, Illinois Center for Transportation and Illinois Department of Transportation aim to create standard guidelines in their joint project, “ R27-198: Development of Guidelines for Implementation of Horizontal Directional Drilling.” Advancements in horizontal directional drilling - a method in which a small-diameter tunnel is drilled under an area like a roadway or body of water - and lower installation costs have led to its increasing use in Illinois.
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