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Microtunneling under a River through Mixed Ground Conditions

Camp, D. Craig

This recently completed 440-meter river crossing in Korea advance through 65 meters of rock not exceeding UCS 1200 kgf/cm², 130 meters of soft clay, silt, and sand not exceeding N=30, and 220 meters in rock ranging between UCS 400 – 600 kgf/cm². The river crossing, utilizing 1778-mm OD x 19-mm Wall x 6000-mm steel casing pipe without intermediate jacking stations, was part of a 7 kilometer LNG transmission line. The was completed without changing disk cutters or using the airlock. The airlock was incorporated into the machine design because of the long drive.

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Microtunneling under a River through Mixed Ground Conditions

Camp, D. Craig

This recently completed 440-meter river crossing in Korea advance through 65 meters of rock not exceeding UCS 1200 kgf/cm², 130 meters of soft clay, silt, and sand not exceeding N=30, and 220 meters in rock ranging between UCS 400 – 600 kgf/cm². The river crossing, utilizing 1778-mm OD x 19-mm Wall x 6000-mm steel casing pipe without intermediate jacking stations, was part of a 7 kilometer LNG transmission line. The was completed without changing disk cutters or using the airlock. The airlock was incorporated into the machine design because of the long drive.

Microtunneling under a River through Mixed Ground Conditions

Camp, D. Craig

This recently completed 440-meter river crossing in Korea advance through 65 meters of rock not exceeding UCS 1200 kgf/cm², 130 meters of soft clay, silt, and sand not exceeding N=30, and 220 meters in rock ranging between UCS 400 – 600 kgf/cm². The river crossing, utilizing 1778-mm OD x 19-mm Wall x 6000-mm steel casing pipe without intermediate jacking stations, was part of a 7 kilometer LNG transmission line. The was completed without changing disk cutters or using the airlock. The airlock was incorporated into the machine design because of the long drive.

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Title:

Microtunneling under a River through Mixed Ground Conditions

Contributors:

Camp, D. Craig (author)

Conference:

Pipeline Division Specialty Conference 2001 ; 2001 ; San Diego, California, United States

Published in:

Pipelines 2001 ; 1-9

Publication date:

2001-07-01

ISBN:

DOI:

https://doi.org/10.1061/40574(2001)26

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Pipe materials , South Korea , Construction , Design , Pipes , Soil conditions , Rehabilitation , River crossings , Steel pipes , Pipelines , Tunnels

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