A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Demonstration of close-coupled barriers for subsurface containment of buried waste
This paper discusses the installation of a close-coupled barrier and the subsequent integrity verification. The demonstration was installed at a benign site at the Hanford Geotechnical Test Facility, 400 Area, Hanford, Washington. The composite barrier was emplaced beneath a 7,500 liter tank. The tank was chosen to simulate a typical DOE Complex waste form. The stresses induced on the waste form were evaluated during barrier construction. The barrier was constructed using conventional jet grouting techniques. Drilling was completed at a 45 deg angle to the ground, forming a conical shaped barrier with the waste form inside the cone. Two overlapping rows of cylindrical cement columns were grouted in a honeycomb fashion to form the secondary backdrop barrier layer. The primary barrier, a high molecular weight polymer manufactured by 3M Company, was then installed providing a relatively thin inner liner for the secondary barrier. The primary barrier was emplaced by panel jet grouting with a dual wall drill stem, two phase jet grouting system.
Demonstration of close-coupled barriers for subsurface containment of buried waste
This paper discusses the installation of a close-coupled barrier and the subsequent integrity verification. The demonstration was installed at a benign site at the Hanford Geotechnical Test Facility, 400 Area, Hanford, Washington. The composite barrier was emplaced beneath a 7,500 liter tank. The tank was chosen to simulate a typical DOE Complex waste form. The stresses induced on the waste form were evaluated during barrier construction. The barrier was constructed using conventional jet grouting techniques. Drilling was completed at a 45 deg angle to the ground, forming a conical shaped barrier with the waste form inside the cone. Two overlapping rows of cylindrical cement columns were grouted in a honeycomb fashion to form the secondary backdrop barrier layer. The primary barrier, a high molecular weight polymer manufactured by 3M Company, was then installed providing a relatively thin inner liner for the secondary barrier. The primary barrier was emplaced by panel jet grouting with a dual wall drill stem, two phase jet grouting system.
Demonstration of close-coupled barriers for subsurface containment of buried waste
B. P. Dwyer (author)
1996
23 pages
Report
No indication
English
Radiation Shielding, Protection, & Safety , Radioactive Wastes & Radioactivity , Adhesives & Sealants , Composite Materials , Ceramics, Refractories, & Glass , Containment Systems , Radioactive Waste Disposal , Cost , Field Tests , Grouting , Hanford Reservation , Installation , Liners , Performance , Remedial Action , Underground Disposal , Washington , Cements , Polymers , EDB/052002 , EDB/054000
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