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California Meadows/ SR 29 / SR 37
Sanitary Sewer
Rerouting Project
Vallejo, California |
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Jet Grouting |
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Drilling is performed along an embankment for soil stabilization in
preparation for the installation of a new 60-inch diameter sanitary pipe.
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Project Overview: |
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Layne GeoConstruction designed and constructed a continuous arrayof jet grouted columns to provide soil stabilization
for micro-tunneling operations installing a new 60-inch diameter sanitary pipe. Work was undertaken along the alignment
of the micro-tunnel construction, on an embankment within a protected and environmentally sensitive bay, and parallel to
a busy state road. Although the contract design specified soil mixing, project test sections included double and
single-fluid jet grouting. Single-fluid jet grouting was chosen to mitigate environmental impacts.
A total of 1,965, 3 feet diameter jet grouted columns were installed. The average drill depth was 17 feet, with a jetting
length of 11 feet, within very soft to soft bay mud and organic peaty soil conditions.
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Value of Work Performed: |
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$1,100,000 |
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Project Duration: |
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4 months |
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Project Completion Date: |
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February 2002 |
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Project Reference: |
Project Designer:
URS Corporation
Chris Mueller
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Owner:
Vallejo Sanitation and Flood Control District
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General Contractor:
Steve P. Rados, Inc.
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