风化岩地基水上嵌岩复合桩冲击成孔工艺  

Percussion Borehoing Technology for Offshore Rock-socketed Piles in Weathered Rock

作　　者：陈锦铭[1] 陈锵能[2,3] 卢普伟[2] 

机构地区：[1]中交四航局第二工程有限公司,广东广州510300 [2]中交第四航务工程局有限公司,广东广州510231 [3]广州四航盛华工程有限公司,广东广州510231

出　　处：《中国港湾建设》2013年第4期67-71,共5页China Harbour Engineering

摘　　要：嵌岩桩因其承载能力高,地质适应性好,在高桩码头中应用越来越广泛。通过调研分析,某码头嵌岩桩决定采用冲击成孔施工工艺。文章详细介绍了冲击式成孔桩锤设计加工、桩机选型、排渣方法、操作流程及实施情况等。该工程实例表明,在风化岩地基条件下采用冲击成孔工艺,节约了施工成本,能够保证工期和质量,可以在类似工程中推广使用。Rock-socketed piles have been widely used in building piled wharfs for their high carrying capacity and good adaptability to geology. Based on the investigation of previous projects, it was decided to use the percussion boreholing tech- nology to build rock-socketed piles for a wharf. This paper introduced the design and manufacture of pile hammers, selection of pile driving machine rigs, debris discharge methods, operation process and implementation of the percussive boreholing technology. The project shows that by using the percussion boreholing technology to build rock-socketed piles, the construc- tion costs were cut down, the construction period was guaranteed and the quality of the works was ensured, which can be used widely in similar projects.

关 键 词：风化岩 嵌岩桩 成孔工艺 

分 类 号：U655.55[交通运输工程—港口、海岸及近海工程]