Loading Tests with Rehabilitated Pipes by Spiral Wound Lining Method Evaluating Influence of Poor Adhesion and Potential Propagation of Separation
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- ISHII Masayuki
- Academic Assembly, Shimane University
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- UENO Kazuhiro
- Academic Assembly, Shimane University
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- KAKINE Shinji
- Sekisui Chemical Co., Ltd.
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- KIKUCHI Ryuta
- Sekisui Chemical Co., Ltd.
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- WATANABE Mitsuhiko
- Sekisui Chemical Co., Ltd.
Bibliographic Information
- Other Title
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- 製管工法による更生管に対する付着不良の影響と剥離伝播の可能性に関する載荷試験
Abstract
<p>In composite designing of rehabilitated pipes by spiral wound lining methods, evaluation of the ultimate state of adhesion between an existing pipe and its reinforcement member is important. If deformation on a rehabilitated pipe causes overall separation between the existing pipe and its reinforcement member, even small area of poor adhesion may cause serious degradation of its strength and rigidity. Specimens of full-scale rehabilitated pipes with SPR Method are prepared with different conditions of adhesion; overall bonded, overall unbonded, and partially unbonded. Overall unbonded specimens showed smaller strength and rigidity compared to overall bonded ones. However, both of strength and rigidity of partially unbonded specimens showed little difference to fully bonded ones. It is concluded that propagation of separation, which originates from an area of poor adhesion and leads to an overall separation, does not occur until the ultimate state of rehabilitated pipes, as far as good adhesive strength is secured in bonded area.</p>
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 91 (2), II_61-II_68, 2023
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
- 1390579322261805056
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- ISSN
- 18847242
- 18822789
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Disallowed