桩基中性点深度估算方法对比分析

胡昕; 张希宏; 刘厚健; 刘志伟

桩基中性点深度估算方法对比分析 English Version

中国电力工程顾问集团西北电力设计院,陕西西安 710032

基金项目: 西北电力设计院技术创新项目( XB1-TM12-2010)

详细信息

作者简介:
胡昕 (1979 – ) ,男,新疆阿勒泰人,博士,工程师,主要从事特殊土工程特性、地基基础工程及边坡工程等方面的研究与设计工作。

中图分类号: TU473
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出版历程
- 收稿日期: 2011-08-01
- 发布日期: 2011-12-06

Comparison and analysis of estimation methods for depth of neutral point of pile foundation

Northwest Electric Power Design Institution, China Power Engineering Consulting Group Corporation, Xi′an 710032, China

摘要

摘要: 通过对现有桩基中性点估算方法的总结分析,探讨了它们各自的特点及其适用范围,并结合工程实例对实测值和估算值进行了比较,对各种估算方法进行了评价。研究表明：经验取值法最为简便易行,但估算结果偏大；渐次趋近法适用范围最广,但估算过程较为繁琐,估算结果准确度较差；日本规范法和理论近似解法涉及参数较多,但估算结果较为贴近实际。
- 桩基础 /
- 负摩阻力 /
- 中性点 /
- 荷载传递
Abstract: By analyzing of the existing methods for the neutral point of piling foundation, their features and applications are studied. The measured and predicted values are compared, and the various means are evaluated with engineering illustrations. The results indicate that the method of empirical value is the simplest and easiest one, but its predicted value is large. The gradually approaching method can be used under most conditions, but its forecasting process is complicated. The Japanese standard method and the theoretical approximation method involve more parameters, but their predicted values are more close to the measured ones.
- pile foundation /
- negative skin friction /
- neutral point /
- load transfer

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参考文献(18)

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