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Guidelines for Installation of Utilities Beneath Corps of Engineers Levees Using Horizontal Directional Drilling
Applications for permits to drill beneath levees are increasing in permitting offices of the U.S. Army Corps of Engineer Districts. This report provides a basis for consistent and science-based consideration of these permit applications. It describes methods of horizontal directional drilling (HDD) beneath levees and lists the types of geotechnical and other data that are essential to judging the safety of proposed drilling for infrastructure modifications and installation of utilities. Critical considerations include setback distances, levee toe stability, thickness and integrity of the top stratum, and other geotechnical parameters. Data provided for vertical and horizontal permeabilities, top stratum thickness, hydraulic gradient at levee toe, and other parameters are based on experience in the U.S. Army Engineer Districts, Vicksburg and St. Louis, and the California Department of Transportation. in appropriate geotechnical settings with appropriate operational care, utilities can be installed beneath flood-control levees using HDD without compromising the integrity and function of the levee.
Guidelines for Installation of Utilities Beneath Corps of Engineers Levees Using Horizontal Directional Drilling
Applications for permits to drill beneath levees are increasing in permitting offices of the U.S. Army Corps of Engineer Districts. This report provides a basis for consistent and science-based consideration of these permit applications. It describes methods of horizontal directional drilling (HDD) beneath levees and lists the types of geotechnical and other data that are essential to judging the safety of proposed drilling for infrastructure modifications and installation of utilities. Critical considerations include setback distances, levee toe stability, thickness and integrity of the top stratum, and other geotechnical parameters. Data provided for vertical and horizontal permeabilities, top stratum thickness, hydraulic gradient at levee toe, and other parameters are based on experience in the U.S. Army Engineer Districts, Vicksburg and St. Louis, and the California Department of Transportation. in appropriate geotechnical settings with appropriate operational care, utilities can be installed beneath flood-control levees using HDD without compromising the integrity and function of the levee.
Guidelines for Installation of Utilities Beneath Corps of Engineers Levees Using Horizontal Directional Drilling
C. A. Latorre (author) / L. D. Wakeley (author) / P. J. Conroy (author)
2002
44 pages
Report
No indication
English
Civil Engineering , Soil & Rock Mechanics , Geotechnical engineering , Water wells , Drilling , Environmental engineering , Construction equipment , Permeability , Toxic hazards , Geology , Trenches , Pipelines , Army corps of engineers , Horizontal orientation , Radioactive wastes , Contamination , Hazardous wastes , Public utilities , Hydraulics , Civil engineering , Gradients , Drilling machines , Infrastructure , Directional drilling , Hdd(Horizontal directional drilling) , Annular space , Fiber optic cables , Hydrofracture , Residual pressure , Trenchless technology
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