Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking

H. Shimada, Y. Yoshida, T. Sasaoka, S. Fujita, M. Ichinose, M. Iino, K. Matsui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lubrication can effectively reduce the needed thrust if a discrete layer of lubricant is maintained between a pipe and the excavated soil. A lower frictional force allows greater jacking lengths to be achieved. The reduction of frictional stress around the pipe strongly affects the efficiency of lubrication injection. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. The lubricant should also fill the over-break void completely to minimize surface settlement. However, for a commercial lubricant to be effective, it has been suggested that ingredients such as sodium and potassium be eliminated. As a result, in order that a lubricant does not lose its function as a support against the overburden pressure of an over-cutting area and to enable a reduction in thrust, a higher quality lubricant which can overcome these problems must be developed as soon as possible. In this paper, in order to examine the characteristics and behavior of a material developed as a lubricant for extra-large-diameter slurry pipe jacking systems, a fundamental investigation is performed and the various results are discussed.

Original languageEnglish
Title of host publicationInternational Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW
Pages296-300
Number of pages5
Publication statusPublished - Dec 1 2008
Event26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW - Moscow, Russian Federation
Duration: Jun 3 2008Jun 6 2008

Publication series

NameInternational Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW

Other

Other26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW
CountryRussian Federation
CityMoscow
Period6/3/086/6/08

Fingerprint

pipe jacking
lubricant
lubricants
lubrication
slurry
Lubrication
Lubricants
Pipe
injection
requirements
thrust
soils
pipe
Soils
water pressure
ground water
cutting (process)
ingredients
overburden
void

All Science Journal Classification (ASJC) codes

  • Geology
  • Geophysics
  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Building and Construction

Cite this

Shimada, H., Yoshida, Y., Sasaoka, T., Fujita, S., Ichinose, M., Iino, M., & Matsui, K. (2008). Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking. In International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW (pp. 296-300). (International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW).

Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking. / Shimada, H.; Yoshida, Y.; Sasaoka, T.; Fujita, S.; Ichinose, M.; Iino, M.; Matsui, K.

International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW. 2008. p. 296-300 (International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shimada, H, Yoshida, Y, Sasaoka, T, Fujita, S, Ichinose, M, Iino, M & Matsui, K 2008, Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking. in International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW. International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW, pp. 296-300, 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW, Moscow, Russian Federation, 6/3/08.
Shimada H, Yoshida Y, Sasaoka T, Fujita S, Ichinose M, Iino M et al. Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking. In International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW. 2008. p. 296-300. (International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW).
Shimada, H. ; Yoshida, Y. ; Sasaoka, T. ; Fujita, S. ; Ichinose, M. ; Iino, M. ; Matsui, K. / Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking. International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW. 2008. pp. 296-300 (International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW).
@inproceedings{40f3e371ccc54a1ea5c48068f3ab7f24,
title = "Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking",
abstract = "Lubrication can effectively reduce the needed thrust if a discrete layer of lubricant is maintained between a pipe and the excavated soil. A lower frictional force allows greater jacking lengths to be achieved. The reduction of frictional stress around the pipe strongly affects the efficiency of lubrication injection. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. The lubricant should also fill the over-break void completely to minimize surface settlement. However, for a commercial lubricant to be effective, it has been suggested that ingredients such as sodium and potassium be eliminated. As a result, in order that a lubricant does not lose its function as a support against the overburden pressure of an over-cutting area and to enable a reduction in thrust, a higher quality lubricant which can overcome these problems must be developed as soon as possible. In this paper, in order to examine the characteristics and behavior of a material developed as a lubricant for extra-large-diameter slurry pipe jacking systems, a fundamental investigation is performed and the various results are discussed.",
author = "H. Shimada and Y. Yoshida and T. Sasaoka and S. Fujita and M. Ichinose and M. Iino and K. Matsui",
year = "2008",
month = "12",
day = "1",
language = "English",
isbn = "9781605604138",
series = "International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW",
pages = "296--300",
booktitle = "International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW",

}

TY - GEN

T1 - Lubrication property requirements for injection into over-cutting area using extra-large-diameter slurry pipe jacking

AU - Shimada, H.

AU - Yoshida, Y.

AU - Sasaoka, T.

AU - Fujita, S.

AU - Ichinose, M.

AU - Iino, M.

AU - Matsui, K.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Lubrication can effectively reduce the needed thrust if a discrete layer of lubricant is maintained between a pipe and the excavated soil. A lower frictional force allows greater jacking lengths to be achieved. The reduction of frictional stress around the pipe strongly affects the efficiency of lubrication injection. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. The lubricant should also fill the over-break void completely to minimize surface settlement. However, for a commercial lubricant to be effective, it has been suggested that ingredients such as sodium and potassium be eliminated. As a result, in order that a lubricant does not lose its function as a support against the overburden pressure of an over-cutting area and to enable a reduction in thrust, a higher quality lubricant which can overcome these problems must be developed as soon as possible. In this paper, in order to examine the characteristics and behavior of a material developed as a lubricant for extra-large-diameter slurry pipe jacking systems, a fundamental investigation is performed and the various results are discussed.

AB - Lubrication can effectively reduce the needed thrust if a discrete layer of lubricant is maintained between a pipe and the excavated soil. A lower frictional force allows greater jacking lengths to be achieved. The reduction of frictional stress around the pipe strongly affects the efficiency of lubrication injection. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. The lubricant should also fill the over-break void completely to minimize surface settlement. However, for a commercial lubricant to be effective, it has been suggested that ingredients such as sodium and potassium be eliminated. As a result, in order that a lubricant does not lose its function as a support against the overburden pressure of an over-cutting area and to enable a reduction in thrust, a higher quality lubricant which can overcome these problems must be developed as soon as possible. In this paper, in order to examine the characteristics and behavior of a material developed as a lubricant for extra-large-diameter slurry pipe jacking systems, a fundamental investigation is performed and the various results are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84877838022&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877838022&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84877838022

SN - 9781605604138

T3 - International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW

SP - 296

EP - 300

BT - International Society for Trenchless Technology - 26th No-Dig International Conference and Exhibition 2008, No-Dig 2008 MOSCOW

ER -