超前钻注浆的钻孔灌注桩在珊瑚礁岩中的应用

摘要

Bahamas National Stadium project built on the basis of coral rock .In order to meet the requirements of the sta-dium for the foundation bearing capacity ,the technical staff use construction technology treatment including advance bore -hole drilling grouting and underwater concrete cast-in-site bored pile .Test results show pile foundation after grouting pile meet the design requirements .%巴哈马国家体育场工程基础建在珊瑚礁岩上。针对珊瑚岩的特殊地质成因，为满足体育场对地基承载力的要求，采用了超前钻探注浆及水下混凝土钻孔灌注桩施工工艺处理。检测结果表明，注浆后的桩基础满足设计要求。