Construction Productivity Advancement Research (CPAR) Program: Geosynthetic Confined Pressurized Slurry (GeoCoPS): Supplemental Notes for Version 1.0

Construction in environmentally sensitive areas (e.g., wetlands) requires using techniques causing minimum disturbance and damage. One such technique can be achieved with the aid of dikes made of geosynthetic tubes. The flat tube can be placed manually and then be filled with slurry by pumping. The...

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Bibliographic Details
Main Authors: Leshchinsky, Dov, Leshchinsky, Ora
Format: Report
Language:English
Subjects:
ARMY CORPS OF ENGINEERS
Civil Engineering
COMPILERS
Computer Programming and Software
COMPUTER PROGRAMS
CPAR(CONSTRUCTION PRODUCTIVITY ADVANCEMENT RESEARCH)
ENVIRONMENTAL PROTECTION
FLUID DYNAMICS
FORTRAN
GEOCOPS COMPUTER PROGRAM
GEOCOPS(GEOSYNTHETIC CONFINED PRESSURIZED SLURRY)
GEOSYNTHETIC TUBES
GEOSYNTHETICS
GEOTEXTILES
Hydrology, Limnology and Potamology
NUMERICAL ANALYSIS
PARAMETRIC ANALYSIS
PARTICLES
RETENTION(GENERAL)
SENSITIVITY
SHELLS(STRUCTURAL FORMS)
SLURRIES
TUBES
Water Pollution and Control
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Summary:Construction in environmentally sensitive areas (e.g., wetlands) requires using techniques causing minimum disturbance and damage. One such technique can be achieved with the aid of dikes made of geosynthetic tubes. The flat tube can be placed manually and then be filled with slurry by pumping. The quickly formed dike then may retain water on one side while allowing construction on the other. Over time, vegetation may grow over the tube's exposed surface. Tubes can also be used to contain and cap contaminated soil by forming a working table over very soft soil, thus allowing the construction of an embankment. Tubes filled with mortar or sand have been used to construct groins to control beach erosion. Tubes are made of sewn geosynthetic sheets. Inlet openings on top allow for the attachment of a pipe that transports hydraulic fill into the tube. If the fill is sandy and the geosynthetic is very pervious (e.g., geotextile), these inlets should be spaced closely (30 ft apart) to ensure uniform filling of the tube. For example, flow and movement are possible only when sand particles are suspended in a sand/water mixture. If the inlets are spaced too far apart, water in the sand/water mixture will be lost by seepage through the wall of the tube, and movement of sand into the tube will stop. If clayey slurry is used, the inlets can be located as far as 500 ft apart because the fine clayey particles tend to rapidly blind the fabric, slowing down the water escape through the geotextile. The scope of this report is limited to the design aspect of selecting a geosynthetic. Also included with AD-M000 683.