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| 抛石挤淤机理及其颗粒流数值模拟研究 | |
| 引用本文： | 张明鸣,徐卫亚,夏玉斌,周先齐.抛石挤淤机理及其颗粒流数值模拟研究[J].中南大学学报(自然科学版),2010,41(1). |
| 作者姓名： | 张明鸣 徐卫亚 夏玉斌 周先齐 |
| 作者单位： | 1. 河海大学,水利水电工程学院,江苏,南京,210098;中国交通建设集团,水运规划设计院有限公司,北京,100007 2. 河海大学,岩土工程研究所,江苏,南京,210098 3. 中国交通建设集团,水运规划设计院有限公司,北京,100007 4. 厦门理工学院,建筑工程系,福建,厦门,361024 |
| 基金项目： | 国家自然科学基金重点资助项目 |
| 摘 要： | 利用压载挤淤理论对深圳港大铲湾三期陆域形成工程及海口马村港区一期工程抛石挤淤堤挤淤深度进行预测研究,比较挤淤深度计算值与实测值;通过理论分析,提出抛石挤淤机理;采用颗粒流理论(PFC)模拟抛石挤淤的施工过程及施工控制条件;比较相同作业条件下不同淤泥层厚度的挤淤深度关系。研究结果表明:挤淤深度计算值明显小于实测值;抛石挤淤机理不仅仅是压载问题,它还包含块石动能冲击和局部应力集中对挤淤深度的影响;在不同抛填强度、块石直径的挤淤深度,其模拟结果与实测结果基本吻合,一次性抛石量越大;块石直径越大,则挤淤深度越大;淤泥层厚度越大,则挤淤深度也越大。 |
| 关 键 词： | 抛石挤淤 压载法 颗粒流理论 |
Mechanism of backfilling rocks to squeeze out ooze and simulated by particle flow code |
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| ZHANG Ming-ming,XU Wei-ya,XIA Yu-bin,ZHOU Xian-qi.Mechanism of backfilling rocks to squeeze out ooze and simulated by particle flow code[J].Journal of Central South University:Science and Technology,2010,41(1). | |
| Authors: | ZHANG Ming-ming XU Wei-ya XIA Yu-bin ZHOU Xian-qi |
| Institution: | ZHANG Ming-ming1,3,XU Wei-ya2,XIA Yu-bin3,ZHOU Xian-qi4 (1. College of Water Conservancy , Hydropower Engineering,Hohai University,Nanjing 210098,China,2. College of Civil Engineering,3. Water Transportation Consultants Co. Ltd,Communication & Construction of China Group Corporation,Beijing 100007,4. Department of Architectural Engineering,Xiamen University of Technology,Xiamen 361024,China) |
| Abstract: | The replacement depths of the dikes in phase 3 of Dachan Bay Port in Shenzhen and phase 1 of Macun Port in Haikou were calculated with the theory of squeeze out ooze by loading. And the construction process and construction control method were modified with particle flow code theory (PFC). The mechanism of backfilling rocks to squeeze out ooze was put forward according to all the analysis results. The results show that the replacement depth calculated is less than that measured. According to the modified re... |
| Keywords: | backfilling rocks to squeeze out ooze ballast method particle flow code (PFC) |
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