Laboratory investigation of unsaturated hydraulic properties of bottom sand drainage layer constructed in shallow land waste repository
-
- NAKAFUSA Satoru
- Decommissioning Project Department, The Japan Atomic Power Company
-
- KOBAYASHI Kaoru
- Research Institute of Technology, Tobishima Corporation
-
- MATSUMOTO Kazunobu
- The 1st Laboratory, Research Institute of Technology, Tobishima Corporation
-
- MORII Toshihiro
- Research Institute for Natural Hazards and Disaster Recovery, Niigata University
Bibliographic Information
- Other Title
-
- キャピラリーバリアを利用した盛土式廃棄物処分施設における底部集排水砂層の垂直応力下での排水に関する性能評価
Abstract
A technical feasibility of a shallow land waste repository for very low level radioactive waste placed by a bottom sand drainage layer with a capillary barrier is discussed. As unsaturated hydraulic properties of the sand determine water divergence through the bottom sand drainage layer, it is required to study an effect of overburden pressure loaded by the shallow land on it. In the study, a soil-water characteristic curve and an air entry value of sand are measured by a soil-water retention test using a microporous membrane. The overburden pressures which will be mobilized in the shallow land waste repository, from 0 to 200 kPa, are loaded onto sand specimens. No or negligible change in the soil-water characteristic curve and the air entry value of the sand were found. This leads to a practical feasibility of constructing the shallow land waste repository placed by the bottom sand drainage layer.
Journal
-
- Japanese Geotechnical Journal
-
Japanese Geotechnical Journal 8 (2), 197-207, 2013
The Japanese Geotechnical Society
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282680235435520
-
- NII Article ID
- 130004482917
-
- ISSN
- 18806341
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed