环向加筋碎石桩极限承载力计算方法

doi:10.16046/j.cnki.issn2096-5680.2021.01.003

河北水利电力学院学报 ›› 2021, Vol. 31 ›› Issue (1): 15-21.DOI: 10.16046/j.cnki.issn2096-5680.2021.01.003

环向加筋碎石桩极限承载力计算方法

王超

廊坊市交通勘察设计院，河北省廊坊市爱民道40号 065000

收稿日期:2020-09-02 修回日期:2020-11-16 出版日期:2021-03-31 发布日期:2021-04-30
作者简介:王超(1982-),男,河北省廊坊市人,高级工程师,从事道路与桥梁工程技术研究｡E-mail:302503283@qq.com
基金资助:
国家自然科学基金面上项目(51978237);河北省人才培养工程资助项目(A201901066)

Calculation method of ultimate bearing capacity of ring reinforced gravel pile

WANG Chao

Langfang Traffic reconnaissance and Design Institute，Hebei，Langfang，065000

Received:2020-09-02 Revised:2020-11-16 Online:2021-03-31 Published:2021-04-30

摘要/Abstract

摘要： 土工合成材料环向加筋碎石桩与传统碎石桩相比具有更高的桩身强度,其承载力通常由桩身强度控制,因此环向加筋碎石桩桩身强度的计算对工程设计具有重要的意义。文中考虑土工合成材料环向加筋作用和桩周土附加应力影响,推导了环向加筋碎石桩桩身强度的计算方法,进而建立了由桩身强度确定的单桩承载力的计算方法,结合数值分析对其承载力解析解进行修正,研究成果可为环向加筋碎石桩复合地基承载力设计提供依据。

关键词: 桩身强度, 环向加筋, 碎石桩, 极限承载力

Abstract: Compared with traditional gravel piles, geosynthetic ring-reinforced gravel piles have higher pile strength. The bearing capacity is usually controlled by the strength of the pile. Therefore, the calculation of the strength of the reinforced gravel piles has great significance for design. In this paper, considering the effect of circumferential reinforcement of geosynthetics and the additional stress of the surrounding soil, the calculation method for the strength of the ring-reinforced gravel pile is deduced. Then, the calculation method for the bearing capacity of a single pile determined by the strength of the pile is established. Combined with numerical analysis, the analytical solution of its bearing capacity is revised. The research results can provide a basis for the bearing capacity design of the ring-reinforced gravel pile composite foundation.

Key words: pile strength, ring-stiffened, stone column, ultimate bearing capacity

中图分类号:

TU473.11

王超. 环向加筋碎石桩极限承载力计算方法[J]. 河北水利电力学院学报, 2021, 31(1): 15-21.

WANG Chao. Calculation method of ultimate bearing capacity of ring reinforced gravel pile[J]. Journal of Hebei University of Water Resources and Electric Engineering, 2021, 31(1): 15-21.

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环向加筋碎石桩极限承载力计算方法

Calculation method of ultimate bearing capacity of ring reinforced gravel pile

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