Change in Self-potential Due to Groundwater Control Works for Landslide Prevention
Bibliographic Information
- Other Title
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- 地すべり対策地下水排除工による自然電位の変化
- ジスベリ タイサク チカスイ ハイジョコウ ニ ヨル シゼン デンイ ノ ヘンカ
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Abstract
Self-potential exploration is a simple technique for observing electric potential in the ground. Non-polarization type electrodes using lead - lead chloride solution and a high input impedance voltage meter were used to measure selfpotential in this study. Streaming potential is one origin of self-potential related to soil water movement. Generation of streaming potential was verified by an infiltration test with a sand column. Field observations of self-potential were conducted at a slope landslide before and after groundwater control works were completed. Self-potential values decreased around drainage pipes after groundwater control work. Groundwater level was lowered by groundwater control works and induced water movement toward the drainage pipes at depths of 5 and 10 meters below the ground surface. The reason for the decrease in self-potential around drainage pipes is thought to be caused by downward water seepage.
Journal
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- 農業工学研究所技報
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農業工学研究所技報 203 231-237, 2005-03-31
NATIONAL INSTITUTE FOR RURAL ENGINEERING INDEPENDENT ADMINISTRATIVE INSTITUTION
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Details 詳細情報について
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- CRID
- 1390299903956101888
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- NII Article ID
- 40007065061
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- NII Book ID
- AN10101373
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- NDL BIB ID
- 7761296
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- ISSN
- 09153314
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Allowed