PWRI

Research Overview






A Study on new restoration technology for large scale embankment disaster.
@In this study,we examined analysis of correspondence plan,catching of needs for disaster spot,testing of safety and durability for restoration methods,in large-scale embankment disaster case of banking collapse.
The developed@technical guard us from large-scale embankment disaster.

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Development of maintenance for earth structure with consideration for the control level.
@In this research,destruction/deformation mode, deformation progress, and limited deformation of earth works are revealed through the past damage examples and model experiments. Final goal is to suggest the methods of health diagnostic, maintenance,and reinforcement
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A research of improvement of workability and quality control method for compaction work on embankment.
@In this research, compacti‚‚Ž tests are conducted with selected compaction machines under some kinds water contents of embankment material. Final goal is to evaluate compaction machines' applicability to some soil materials and suggest the quality control methods embankments.
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Effective maintenance method of ground anchors.

@In this research, countermeasures, for example additive construction of anchors, replacement of corrosion protection oil are simulated and tested. Final goal is to grasp quantitative effect, suggest selection methods and construct design approach for countermeasures.
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A Study on the improved soil used for earth structure.
@In this study, some embankment conditions are examined influence of soil improvement object support using by numerical analysis and centrifugal model tests.
@Therefore,we can design effective safety and durability in construction works.
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Construction Technology Team,
Geology and Geotechnical Research Group
,
The Public Works Research Institute
1-6 Minamihara, Tsukuba City, Ibaraki Prefecture, 305-8516
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FAX 029-879-6799
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