Evaluation of fluid flow and transport processes in rock masses by using visualization technique and acoustic tomography
Project/Area Number |
24760690
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Earth system and resources enginnering
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Research Institution | Nagasaki University |
Principal Investigator |
LI Bo 長崎大学, 工学(系)研究科(研究院), 助教 (80578427)
|
Project Period (FY) |
2012-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | 亀裂性岩盤 / せん断 / 透水 / 物質移行 / 可視化 / 岩盤 / 亀裂 / ラフネス / ネットワーク / 廃棄物地層処分 / 岩盤亀裂 / 透水特性 / 物質移行特性 |
Research Abstract |
Coupled shear-flow and visualization tests were conducted on single rock fractures under boundary conditions reproduced from stress environment of actual rock masses, in order to estimate the hydro-mechanical characteristics of rock fractures. Prediction equations of the relation between mechanical aperture and hydraulic aperture taking into account the influences of surface roughness and Reynolds number were proposed based on numerical simulations on the fluid flow through rock fractures. Flow and tracer tests were conducted on models containing several intersecting fractures manufactured by glass plates to estimate the influence of geometrical distribution characteristics of fractures on the hydraulic behavior of fracture networks. Flow and mass transport properties of fracture networks were evaluated through numerical simulations on models with fracture distributions measured from real rock masses.
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Report
(3 results)
Research Products
(12 results)