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Title: Methods and system for subsurface stabilization using jet grouting

Abstract

Methods and systems are provided for stabilizing a subsurface area such as a buried waste pit for either long term storage, or interim storage and retrieval. A plurality of holes are drilled into the subsurface area with a high pressure drilling system provided with a drill stem having jet grouting nozzles. A grouting material is injected at high pressure through the jet grouting nozzles into a formed hole while the drill stem is withdrawn from the hole at a predetermined rate of rotation and translation. A grout-filled column is thereby formed with minimal grout returns, which when overlapped with other adjacent grout-filled columns encapsulates and binds the entire waste pit area to form a subsurface agglomeration or monolith of grout, soil, and waste. The formed monolith stabilizes the buried waste site against subsidence while simultaneously providing a barrier against contaminate migration. The stabilized monolith can be left permanently in place or can be retrieved if desired by using appropriate excavation equipment. The jet grouting technique can also be utilized in a pretreatment approach prior to in situ vitrification of a buried waste site. The waste encapsulation methods and systems are applicable to buried waste materials such as mixed waste, hazardousmore » waste, or radioactive waste.

Inventors:
 [1];  [2];  [1];  [1];  [1]
+ Show Inventor Affiliations
  1. Idaho Falls, ID
  2. Iona, ID
Issue Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
OSTI Identifier:
872642
Patent Number(s):
5980446
Assignee:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09B - DISPOSAL OF SOLID WASTE
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
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DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
methods; subsurface; stabilization; jet; grouting; systems; provided; stabilizing; buried; waste; pit; term; storage; interim; retrieval; plurality; holes; drilled; pressure; drilling; drill; nozzles; material; injected; formed; withdrawn; predetermined; rate; rotation; translation; grout-filled; column; minimal; grout; returns; overlapped; adjacent; columns; encapsulates; binds; entire; form; agglomeration; monolith; soil; stabilizes; site; subsidence; simultaneously; providing; barrier; contaminate; migration; stabilized; left; permanently; retrieved; desired; appropriate; excavation; equipment; technique; utilized; pretreatment; approach; prior; situ; vitrification; encapsulation; applicable; materials; mixed; hazardous; radioactive; term storage; situ vitrification; simultaneously providing; mixed waste; buried waste; hazardous waste; waste material; waste materials; radioactive waste; predetermined rate; waste site; interim storage; encapsulation method; /588/405/

Citation Formats

Loomis, Guy G, Weidner, Jerry R, Farnsworth, Richard K, Gardner, Bradley M, and Jessmore, James J. Methods and system for subsurface stabilization using jet grouting. United States: N. p., 1999. Web.
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Loomis, Guy G, Weidner, Jerry R, Farnsworth, Richard K, Gardner, Bradley M, & Jessmore, James J. Methods and system for subsurface stabilization using jet grouting. United States.
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Loomis, Guy G, Weidner, Jerry R, Farnsworth, Richard K, Gardner, Bradley M, and Jessmore, James J. Fri . "Methods and system for subsurface stabilization using jet grouting". United States. https://www.osti.gov/servlets/purl/872642.
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@article{osti_872642,
title = {Methods and system for subsurface stabilization using jet grouting},
author = {Loomis, Guy G and Weidner, Jerry R and Farnsworth, Richard K and Gardner, Bradley M and Jessmore, James J},
abstractNote = {Methods and systems are provided for stabilizing a subsurface area such as a buried waste pit for either long term storage, or interim storage and retrieval. A plurality of holes are drilled into the subsurface area with a high pressure drilling system provided with a drill stem having jet grouting nozzles. A grouting material is injected at high pressure through the jet grouting nozzles into a formed hole while the drill stem is withdrawn from the hole at a predetermined rate of rotation and translation. A grout-filled column is thereby formed with minimal grout returns, which when overlapped with other adjacent grout-filled columns encapsulates and binds the entire waste pit area to form a subsurface agglomeration or monolith of grout, soil, and waste. The formed monolith stabilizes the buried waste site against subsidence while simultaneously providing a barrier against contaminate migration. The stabilized monolith can be left permanently in place or can be retrieved if desired by using appropriate excavation equipment. The jet grouting technique can also be utilized in a pretreatment approach prior to in situ vitrification of a buried waste site. The waste encapsulation methods and systems are applicable to buried waste materials such as mixed waste, hazardous waste, or radioactive waste.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
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Works referenced in this record:

Innovative grout/retrieval demonstration final report
report, January 1995

Innovative subsurface stabilization project -- Final Report
report, November 1996

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