CAJ | 학술논문

锚杆是GRF桩基础区别于普通直桩的显著区别，为了进一步揭示GRF桩基础锚杆的承载机理，结合已有实测数据，利用有限元软件MSC ．Marc ，建立GRF桩基础的三维非线性模型，分析竖向荷载作用下GRF桩基础锚杆的承载机制。结果表明：锚杆对于GRF桩基础的承载力贡献随着桩顶荷载的增加而增大；当桩顶荷载增大到一定值时，锚杆对桩基础承载力贡献会显著的增大；在一定的范围内，锚杆间距对GRF桩基础的极限承载力、沉降量和端阻力影响甚微，模型试验结果与现场实测数据较为吻合。研究结果对进一步揭示GRF桩基础锚杆的承载机理有一定的参考价值。
묘간시GRF장기출구별우보통직장적현저구별，위료진일보게시GRF장기출묘간적승재궤리，결합이유실측수거，이용유한원연건MSC ．Marc ，건립GRF장기출적삼유비선성모형，분석수향하재작용하GRF장기출묘간적승재궤제。결과표명：묘간대우GRF장기출적승재력공헌수착장정하재적증가이증대；당장정하재증대도일정치시，묘간대장기출승재력공헌회현저적증대；재일정적범위내，묘간간거대GRF장기출적겁한승재력、침강량화단조력영향심미，모형시험결과여현장실측수거교위문합。연구결과대진일보게시GRF장기출묘간적승재궤리유일정적삼고개치。
The anchor of the GRF pile makes a significant difference between GRF pile foundations and ordinary pile foundations .By combining the existing experimental data ,a 3D nonlinear model of geo-reinforcement foundation was es-tablished using the finite element software MSC .Marc ., through which the bearing mechanism of geo -reinforcement foundation under vertical load was analyzed .The results indicate that the contribution of the anchor to the bearing capaci-ty of the geo-reinforcement foundation increases with the increasing of the pile head load .When the pile head load in-creases to a certain value ,the contribution of the anchor to the bearing capacity of the foundation increases significantly . Whereas when the interval space of the anchors is in a certian range ,its effects on the ultimate bearing capacity ,settle-ment and the end resistance of the geo-reinforcement foundation is negligible .Furthermore ,the model test result is in consistent with that of the field measured data .The results of the study have certain referential value for further research on revealing the mechanism of bearing capacity of the anchor .