| 摘要: |
| 海堤施工期安全稳定受到多种因素的影响，一直都是工程建设中的难点。施工监控是提高海堤施工期安全的有效方法，但施工监控的质量很大程度上取决于监控控制标准的合理性，合理有效的监控控制标准是保障施工安全的重要前提。目前工程应用中仍以经验控制为主，缺乏理论依据。结合某海堤工程，利用正交试验法对影响海堤稳定的各种因素进行分析，得到了影响海堤稳定的最主要影响因素为内摩擦角，并基于此分析了海堤安全系数与水平位移速率的关系，最终提出了水平位移速率监控控制标准。工程实践表明，该控制标准能较好地反映海堤变形特点，具有较好的工程指导意义，可为类似工程制定科学合理的控制标准提供参考。 |
| 关键词: 海堤稳定 正交试验法 水平位移速率 施工监控 控制标准 |
| DOI： |
| 分类号:U656.31+4 |
| 基金项目:交通运输部科研项目（No.JTSBD2010-10-087）；中国交通建设股份有限公司科研项目(No.2008-ZJKJ-16) |
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| Monitoring control standard for seawall based on orthogonal design |
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HU Heng, DONG Zhi-liang
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CCCC Fourth Harbor Engineering Institute Co., Ltd.
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| Abstract: |
| The seawall stability influenced by many factors has always been one of the difficult problems in engineering construction. Construction monitoring is an available method to improve the safety of the seawall, which has been widely used in seawall construction of hydraulic engineering and port waterway engineering. However, the quality of the construction monitoring mostly depends upon reasonableness of the control standard, and a reasonable and available monitoring control standard is the important prerequisite to ensure the construction monitoring. At present, in the current engineering practice the control standard is still mainly based on engineering experiences, lacking in appropriate theoretical basis. Taking a seawall project as a case study, many factors of the seawall stability are analyzed with the orthogonal design, and it is found that the most important factor impacting the seawall stability is the angle of internal friction. And based on this point for analyzing the relationship between the safety factors and the horizontal displacement rates, the monitoring control standard of the horizontal displacement rates is put forward. The engineering practice, showing that the control standards can well reflect the deformation characteristics of the seawall, can provide a lot of references for similar works in the development of scientific and reasonable control standards. |
| Key words: seawall stability orthogonal design horizontal displacement rate construction monitoring control standard |
