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砂性土地基中静压PHC管桩施工 |
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CONSTRUCTION OF STATIC PRESSURE PHC TUBULAR PILE IN SAND SOIL FOUNDATION |
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摘要 密实砂层中的静力触探和标准贯入试验表明,将PHC管桩静力压入砂层地基中极为困难。郑州市某住宅工程中,经方案比选采用大密度泥浆护壁预引孔静压沉桩技术,经检测管桩各项技术指标满足设计要求。 |
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关键词: 砂性土地基
静压管桩
泥浆护壁
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Abstract:
After static sounding and standard penetration tests of compacted sand stratum, it is very difficult to insert PHC tubular pile into the foundation of sand stratum by using static pressure. After comparison among schemes, static pressure pile sinking technique in preliminary guiding hole with high-density slurry breast wall is used in a residential community engineering in Zhengzhou. After inspection, all technical indexes of the tubular pile satisfy the design requirements.
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Key words: sand soil foundation static pressure tubular pile slurry breast wall |
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