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1.
HDPE culvert pipe crown was damaged by impact loading
during construction when wet backfill material was
dumped from 20 feet above directly onto the pipe. The
pipe imploded.
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2.
LINK-PIPE® sleeves were used to build a tunnel shield,
that protected installers as they removed the next two
foot section of imploded pipe and associated backfill
material. |
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3. Damaged culvert parts were removed |
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4. The damaged part of the
pipe shown is fully restored with LINK-PIPE® sleeves.
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Below
are the links for the
web sites where Caltrans (California Department of
Transportation) and FHWA (Federal Highway Administration)
specified the
LINK-PIPE® PVC Sleeve and
GROUTING SLEEVE™ for the internal culvert repair.
"Culvert Repair
Practices Manual" volume 1 (FHWA) CHAPTER 6-36
"LINK-PIPETM
- Link Pipe Technologies of Ontario, Canada, has developed two
different
types of systems that may be used to repair certain types of
culvert problems.
Both
systems are normally used to repair relatively short sections
of long culverts or
pipelines
that are otherwise in reasonably good condition, although two
or more
sections
of these liners may be installed adjacent to each other. They
are particularly
applicable
for localized problems such as localized cracking, distortion
and infiltration
and
exfiltration. They may be installed without excavation and
normally without
dewatering.
Both systems are available in the United States."
(For
the original document please click here)
"Culvert Repair
Practices Manual" volume
2 (FHWA) Section Page B-155
(For
the original document please click here)
DIB
83 - Caltrans Supplement to FHWA Culvert Repair Practices
Manual Section 5.1.1.3.2
(For
the original document please click here)
