Model Experiment on the Horizontal Resistance Force of Buried Pipe in Liquefied Ground
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- ITANI Yoshinori
- Kubota Corporation
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- FUJITA Nobuo
- Kubota Corporation
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- SAWADA Yutaka
- Graduate School of Agricultural Science, Kobe University
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- ARIYOSHI Mitsuru
- National Institute for Rural Engineering
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- MOHRI Yoshiyuki
- Faculty of Agriculture, Ibaraki University
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- KAWABATA Toshinori
- Graduate School of Agricultural Science, Kobe University
Bibliographic Information
- Other Title
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- 液状化地盤における埋設管の水平抵抗力に関する模型実験
- エキジョウカ ジバン ニ オケル マイセツカン ノ スイヘイ テイコウリョク ニ カンスル モケイ ジッケン
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Abstract
Generally, the damage of pipeline becomes heavy when liquefaction occurs. However, the seismic behavior of pipeline in the liquefied ground is unknown enough. Therefore, the seismic design are not established systematically. In particular, the thrust force due to internal pressure constantly acts on pipe bend of the pressure line, such as irrigation pipelines. The resistance for the thrust force is passive earth pressure behind the pipe bend, but it is not considered that the passive earth pressure decreases when the liquefaction occurs. In the present study, model experiments were carried out in order to discuss the mechanical behavior of the pipe bend laterally loaded in the liquefied ground. As a result, it was revealed that the horizontal displacement of the pipe is increase and the horizontal resistance force is decrease significantly during liquefaction. In addition, it was found that the coefficient of subgrade reaction in the liquefied ground was reduced to 1/7 to 1/8 compared to that in non-liquefied ground.
Journal
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- Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
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Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 83 (1), 77-83, 2015
The Japanese Society of Irrigation, Drainage and Rural Engineering
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Keywords
Details 詳細情報について
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- CRID
- 1390282680266678016
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- NII Article ID
- 130005128637
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- NII Book ID
- AA12240517
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- ISSN
- 18847242
- 18822789
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- NDL BIB ID
- 026197302
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed