摘要
结合福建省肿瘤医院肿瘤诊疗中心大楼桩基施工实例，针对大孔径超深冲孔灌注桩的冲孔过程中，在第⑩层砂土状强风化花岗岩中下部遇进尺困难、成桩时间长等问题，通过采取相应措施并掌握试成孔穿越地层各项参数后，详细阐述了在软弱复杂土层上有效进行超深冲孔灌注桩施工工艺的操作和质量控制。
Abstract
Combined with Fujian Prov-ince Tumor Hospital tumor diagnosis and treat-ment center building foundation construction example, the punching process of large aperture deep bored pile, in Chapter 11 layer of granite weathering sand bottom in footage difficulties, pil-ing time, by taking measures and master the pore-forming through the parameters of strata, detailed describes the operation and quality control of soft and intricate effectively the construction process of cast-in-place piles on deep soil layer.
万方数据