摘要
静压预制混凝土小桩复合地基具有施工速度快、无污染、无噪音等优点以及地基承载力提高幅度大、压缩模量提高显著等特点。本文通过静压小桩复合地基载荷试验及分析,研究了预制静压桩复合地基桩土相互作用变化规律及刚性桩复合地基承载力设计计算方法。通过某工程实例的应用分析,验证了预制混凝土小桩复合地基承载力计算式中各项糸数取值的实用性。
The static-push-in-mini-pile (SPIMP) composite foundation processing technology has the advantages of short construction period, low noise, no pollution and so on; at the same time, the load bearing capacity and modulus of elastic are enhanced significantly. Based on the site loading experiment on SPIMP composite foundation, the interaction between pile and soil are studied in detail and the internal force analysis method is put forward. Finally, the case study calibrates the parameters in the analysis formula.
出处
《建筑科学》
2003年第5期37-41,共5页
Building Science
关键词
静压混凝土小桩
复合地基
承载力
载荷试验
预制静压桩
桩土相互作用
Static-push-in-mini-pile
composite foundation
experiment analysis
load bearing capacity
pile-soil interaction
