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云南某炼油厂拟建场地经过平山填谷施工,地基土质极其不均匀,填方区虽经强夯处理也不能直接作为某种装置的基础。选择三个有代表性的装置区进行桩基试验,选择合理的持力层与桩型,确定单桩承载力。着重就单桩在竖向附加应力作用下,分析桩周土对桩身发挥的作用以及桩身应力分布、桩的侧摩阻力以及桩底端阻力情况并进行探讨,为桩基设计提供可靠依据。
After the construction site of a refinery in Yunnan passes through the Pingshan valley filling construction, the soil quality of the foundation is extremely uneven. Although the filling area can not directly serve as the basis of a certain type of device after being subjected to dynamic compaction. Select three representative device area for pile foundation test, choose a reasonable holding layer and pile type, determine the single pile bearing capacity. Focus on the single pile in the vertical additional stress under the action of the pile around the soil to play the role of the pile body and the pile stress distribution, pile lateral friction and resistance at the bottom of the pile to discuss and provide a reliable basis for the design of pile foundation .