| 曹妃甸浅滩表层砂体插桩深度研究 |
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| 引用本文： | 陶常飞,吴建政,亓发庆,张子鹏.曹妃甸浅滩表层砂体插桩深度研究[J].海岸工程,2008,27(4):54-59. |
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| 作者姓名： | 陶常飞 吴建政 亓发庆 张子鹏 |
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| 作者单位： | 1. 中国海洋大学,海洋地球科学学院,山东,青岛,266100
2. 国家海洋局,第一海洋研究所,山东,青岛,266061 |
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| 摘 要： | 曾妃甸浅滩原为古滦河三角洲，三角洲废弃后，海底表层沉积物在波浪潮流的簸选及自重应力作用下，沉积物颗粒粗化，粒度单一，且堆积紧密，工程强度较高。平台在该海医插桩时往往难以贯穿该层，其实际插桩深度较预定深度存在较大偏差。本文对此类砂体的形成机制、插桩过程中土体的压实作用对砂体强度的影响进行了分析，在对砂体力学参数做出适当调整后，运用太沙基地基极限荷载公式进行计算，得到了与实际情况较为一致的结果。
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| 关 键 词： | 曹妃甸浅滩 “铁板沙” 太沙基地基极限荷载公式 |
Study on the Pile Penetration Depth into the Sand Sediment of the Caofeidian Shoal |
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| TAO Chang-fei,WU Jian-zheng,QI Fa-qing,ZHANG Zi-peng.Study on the Pile Penetration Depth into the Sand Sediment of the Caofeidian Shoal[J].Coastal Engineering,2008,27(4):54-59. |
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| Authors: | TAO Chang-fei WU Jian-zheng QI Fa-qing ZHANG Zi-peng |
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| Institution: | TAO Chang-fei1,WU Jian-zheng1,QI Fa-qing2,ZHANG Zi-peng1(1.College of Marine Geosciences,Ocean University of China,Qingdao 266100,China,2.First Institute of Oceanography,SOA,Qingdao 266061,China) |
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| Abstract: | The Caofeidian Shoal was developed from the ancient Luanhe River Delta.After the delta had been obsolete,the sediments became coarser and denser with a higher strength for engineering,and the particle size of the sediments was going to be monotonous due to the long-term actions of waves,tides and self-weight stress.When piles for the construction of drilling platform are driven in this area,it is difficult to penetrate through the sediment and the actual depth of the pile panetration often has errors to be ... |
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| Keywords: | Caofeidian Shoal sands as hard as iron plate formula of Terzaghi ultimate bearing capacity for foundations |
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