Negative Skin Friction on Piles in Loess Collapsible Under Overburden Pressure
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摘要: 通过现场在天然状态下和经过振冲密实砂桩处理后的两个区域进行的单桩竖向静载荷试验和桩身应力测试,确定了不同区域的单桩竖向抗压极限承载力,并对天然和经挤密砂桩处理两种不同状态下的桩身侧阻力及桩端阻力进行了对比分析,得出在沙漠地区,经过振冲密实砂桩处理后,钢筋混凝土灌注桩的桩身侧阻力及桩端阻力会有较大地提高,设计上可以通过减短桩长来大大节约此类项目在地基基础上的资金。Abstract: Through the field in the natural state and, after vibroflotation sand compaction pile treatments on two regions of the static load test of pile and pile stress tests. The Author Had determined the different regions of the vertical ultimate carrying capacity of single pile, and the natural compaction sand pile under two different conditions of pile body side friction are analyzed. After vibroflotation sand compaetion pile treatments, the reinforced concrete filling pile side resistance and end resistance of the pile will be greatly improved, designed by the length shortened to save such projects in foundation of funds.
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Key words:
- sand /
- filling pile /
- capacity /
- dense sand pile /
- pile stress
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