摘要
依托于广州市某热力电厂项目,通过单桩静载荷试验和有限元数值模拟,定量分析桩底沉渣厚度对灌注桩竖向承载性能的影响规律。结果表明:深厚软弱土层下卧岩层的地层条件的灌注桩的荷载-沉降曲线呈缓变型;随着桩底沉渣厚度增大,灌注桩的承载性状发生明显改变。可为类似工程提供参考依据。
Based on a thermal power plant project in Guangzhou,this paper quantitatively analyzes the influence of bottom sediment thickness on the vertical bearing performance of cast-in-place piles through single pile static load test and finite element numerical simulation.The results show that the load-settlement curve of the cast-in-place pile under the stratum condition of the deep and weak soil layer is slow‐ly changing;As the thickness of the bottom sediment increases,the bearing properties of the cast-in-place pile change significantly.It can provide a reference basis for similar projects.
作者
曾翔
ZENG Xiang(Guangdong Houpu Construction Engineering Co.,Ltd.Guangzhou 511493,China)
出处
《广东土木与建筑》
2021年第8期126-128,共3页
Guangdong Architecture Civil Engineering
关键词
桩底沉渣
真空联合堆载预压
数值模拟
灌注桩
bottom sediment
vacuum combined surcharge preloading
numerical simulation
cast-in-place pile
