H型长钢桩尖在密实土层中的应用

摘要

在钢筋混凝土桩基施工时,如果遇到工程区域地质持力层较密实且埋藏较浅或者持力层上面有较密实的覆盖层的情况,往往会造成沉桩困难、桩的入土深度不能满足使用要求等问题.结合具体工程的实践经验对此类工程问题进行分析,提出钢筋混凝土桩组合H型长钢桩尖的解决方案,并与普通钢筋混凝土桩基方案进行对比、通过计算及试桩试验对方案进行验证、对方案优点及适用性进行总结.%During the reinforced concrete pile foundation construction process, when the bearing stratum of engineering region is more compact and shallow buried or be covered by dense layer, the problems are tend to hap?pen, such as pile?sinking difficultly or embedded depth of pile cannot meet operating requirement. Combined with specific engineering practice experience and the analysis of such problems, the solution of reinforced concrete pile with long H?type steel pile tip was mentioned in this paper. The advantage and applicability of this solution was summarized by contrast with common reinforced concrete pile foundation, and it was verified by calculation and test piles.