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。
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.
作者
王超
WANG Chao(Langfang Traffic Reconnaissance and Design Institute, 065000, Langfang, Hebei, China)
出处
《河北水利电力学院学报》
2021年第1期15-21,共7页
Journal of Hebei University Of Water Resources And Electric Engineering
基金
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)。
关键词
桩身强度
环向加筋
碎石桩
极限承载力
pile strength
ring-stiffened
stone column
ultimate bearing capacity
