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Title: Method of lining a vertical mine shaft with concrete

Abstract

The apparatus includes a cylindrical retainer form spaced inwardly of the wall of the shaft by the desired thickness of the liner to be poured and having overlapping edges which seal against concrete flow but permit the form to be contracted to a smaller circumference after the liner has hardened and is self-supporting. A curb ring extends downwardly and outwardly toward the shaft wall from the bottom of the retainer form to define the bottom surface of each poured liner section. An inflatable toroid forms a seal between the curb ring and the shaft wall. A form support gripper ring having gripper shoes laterally extendable under hydraulic power to engage the shaft wall supports the retainer form, curb ring and liner until the newly poured liner section becomes self-supporting. Adjusting hydraulic cylinders permit the curb ring and retainer form to be properly aligned relative to the form support gripper ring. After a liner section is self-supporting, an advancing system advances the retainer form, curb ring and form support gripper ring toward a shaft boring machine above which the liner is being formed. The advancing system also provides correct horizontal alignment of the form support gripper ring.

Inventors:
 [1];  [2];  [3];  [2];  [4]
  1. (Mattawa, WA)
  2. (Richland, WA)
  3. (Spokane, WA)
  4. (Federal Way, WA)
Publication Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
863898
Patent Number(s):
US 4270876
Assignee:
United States of America as represented by United States (Washington, DC) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; lining; vertical; mine; shaft; concrete; apparatus; cylindrical; retainer; form; spaced; inwardly; wall; desired; thickness; liner; poured; overlapping; edges; seal; flow; permit; contracted; circumference; hardened; self-supporting; curb; extends; downwardly; outwardly; bottom; define; surface; section; inflatable; toroid; forms; support; gripper; shoes; laterally; extendable; hydraulic; power; engage; supports; newly; adjusting; cylinders; properly; aligned; relative; advancing; advances; boring; machine; formed; provides; correct; horizontal; alignment; bottom surface; wall supports; properly aligned; spaced inwardly; extends downwardly; hydraulic cylinders; form support; desired thickness; hydraulic cylinder; mine shaft; /405/425/

Citation Formats

Eklund, James D., Halter, Joseph M., Rasmussen, Donald E., Sullivan, Robert G., and Moffat, Robert B. Method of lining a vertical mine shaft with concrete. United States: N. p., 1981. Web.
Eklund, James D., Halter, Joseph M., Rasmussen, Donald E., Sullivan, Robert G., & Moffat, Robert B. Method of lining a vertical mine shaft with concrete. United States.
Eklund, James D., Halter, Joseph M., Rasmussen, Donald E., Sullivan, Robert G., and Moffat, Robert B. Thu . "Method of lining a vertical mine shaft with concrete". United States. https://www.osti.gov/servlets/purl/863898.
@article{osti_863898,
title = {Method of lining a vertical mine shaft with concrete},
author = {Eklund, James D. and Halter, Joseph M. and Rasmussen, Donald E. and Sullivan, Robert G. and Moffat, Robert B.},
abstractNote = {The apparatus includes a cylindrical retainer form spaced inwardly of the wall of the shaft by the desired thickness of the liner to be poured and having overlapping edges which seal against concrete flow but permit the form to be contracted to a smaller circumference after the liner has hardened and is self-supporting. A curb ring extends downwardly and outwardly toward the shaft wall from the bottom of the retainer form to define the bottom surface of each poured liner section. An inflatable toroid forms a seal between the curb ring and the shaft wall. A form support gripper ring having gripper shoes laterally extendable under hydraulic power to engage the shaft wall supports the retainer form, curb ring and liner until the newly poured liner section becomes self-supporting. Adjusting hydraulic cylinders permit the curb ring and retainer form to be properly aligned relative to the form support gripper ring. After a liner section is self-supporting, an advancing system advances the retainer form, curb ring and form support gripper ring toward a shaft boring machine above which the liner is being formed. The advancing system also provides correct horizontal alignment of the form support gripper ring.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}

Patent:

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