hydro-mechanical process of LUSI mud volcano
| Project/Area Number |
20710138
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Natural disaster science
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
TANIKAWA Wataru Japan Agency for Marine-Earth Science and Technology, 高知コア研究所, 研究員 (70435840)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 液状化 / 泥火山 / 透水係数 / レオロジー / LUSI / 高間隙水圧 / 地震動 |
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| Research Abstract |
Hydraulic properties of sedimentary rocks in East Java where the disaster of mud eruption (LUSI) was occurred were measured by laboratory tests. Temporal and Spatial pore pressure distribution was evaluated by numerical model based on laboratory results. The numerical results showed that abnormally high pore pressure would have been generated at a clay rich formation that is the origin of erupted mud, and it is mainly caused by the formation of very low permeable layer and rapid sedimentation rate. Rheology measurement showed that viscosity of mud was decreased with increasing of liquid fraction and strain. Our result indicates that overpressure generation and fluid injection to the clay rich formation, both of which induce the reduction of sediment, is one of reasons for LUSI mud eruption.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Fluid transport properties and estimation of overpressure at the Lusi mud volcano, East Java Basin.2010
Author(s)
Tanikawa, W., Sakaguchi, M., Wibowo, H.T., Shimamoto, T., Tadai, O.
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Journal Title
Engineering Geology 116
Pages: 73-85
Related Report
Peer Reviewed
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