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Title: Underground barrier construction apparatus with soil-retaining shield

Abstract

An apparatus is described for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment. 17 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Lockheed Martin Idaho Tech Co
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672676
Patent Number(s):
5,788,422
Application Number:
PAN: 8-725,448; TRN: 99:001120
Assignee:
Lockheed Martin Idaho Technologies Co., Idaho Falls, ID (United States) PTO; SCA: 540220; 054000; PA: EDB-98:121460; SN: 98002026916
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 4 Aug 1998
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 05 NUCLEAR FUELS; CONTAINMENT SYSTEMS; INSTALLATION; EARTHMOVING EQUIPMENT; DRILLING EQUIPMENT; DESIGN; SLURRIES; CURING; ENVIRONMENTAL TRANSPORT; MITIGATION; SANITARY LANDFILLS; RADIOACTIVE WASTE FACILITIES

Citation Formats

Gardner, B.M., Smith, A.M., Hanson, R.W., and Hodges, R.T. Underground barrier construction apparatus with soil-retaining shield. United States: N. p., 1998. Web.
Gardner, B.M., Smith, A.M., Hanson, R.W., & Hodges, R.T. Underground barrier construction apparatus with soil-retaining shield. United States.
Gardner, B.M., Smith, A.M., Hanson, R.W., and Hodges, R.T. Tue . "Underground barrier construction apparatus with soil-retaining shield". United States.
@article{osti_672676,
title = {Underground barrier construction apparatus with soil-retaining shield},
author = {Gardner, B.M. and Smith, A.M. and Hanson, R.W. and Hodges, R.T.},
abstractNote = {An apparatus is described for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment. 17 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {8}
}