回填荷载作用下桶式结构的内力变化研究

曹永勇; 侯贺营; 张宁; 李文轩

doi:10.11779/CJGE2018S2022

回填荷载作用下桶式结构的内力变化研究 English Version

1. 南京水利科学研究院岩土工程研究所,江苏南京 210024;
2. 水文水资源与水利工程国家重点实验室,江苏南京 210029

基金项目: 国家自然科学基金项目（51609147）; 江苏省自然科学基金项目（BK20171129）; 南京水利科学研究院院基金项目（Y317006）

详细信息

作者简介:
曹永勇(1987- ),男,博士,工程师,主要从事土与结构相互作用现场试验与数值分析研究。E-mail: rawlinsoncao@hotmail.com.cn。

中图分类号: TU196
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出版历程
- 收稿日期: 2018-07-21
- 发布日期: 2018-10-29

Change of internal force of bucket-based structure under backfill loads

1. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China;
2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China

摘要

摘要: 单桶多隔舱型式的桶式结构已经在防波堤工程中得到了应用,但作为直立式岸壁结构,需要在陆侧进行回填,这种结构的安全可靠性尚未得到验证。通过原位试验对桶式结构的内力进行了测试,得到了下桶壁、隔舱、盖板和上桶壁等部位的内力数据。绘制了回填荷载作用下关键部位的混凝土应变随时间变化曲线和钢筋应力随时间变化曲线,发现了桶式结构各部位内力的发展规律,了解了陆侧回填工况下桶式结构的受力状况。试验结果表明结构本身在回填过程中具有良好的稳定性,为结构的进一步优化提供了数据支撑。
- 桶式结构 /
- 内力分布 /
- 回填荷载 /
- 原位试验
Abstract: The single-bucket and multi-compartment structure has been applied in breakwater engineering. However when it used as a vertical quay wall structure, backfilling at the land side is required, and its safety and reliability have not been verified. The internal forces of the bucket-based structure are measured by the in-situ tests, and those of the lower barrel wall, the compartment, the cover plate and the upper barrel wall are obtained. The variation curves of the vital part of concrete strain with time and reinforcement stress with time are plotted under the backfill loads. The development laws of internal force of each part of bucket structure are found, and the stress state of bucket structure at the land side under the backfilling condition is understood. The test results show that the structure has good stability in the backfilling process, and it may provide data support for further optimization of the structure.
- bucket-based structure /
- internal force distribution /
- backfill load /
- in-situ test

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参考文献(6)

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