珊瑚礁灰岩地基的沉降计算方法  

Settlement calculation method for coral-reef limestone foundation

作　　者：杨艺平[1] 陈祥[1] YANG Yi-ping;CHEN Xiang(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司

出　　处：《水运工程》2019年第9期253-258,共6页Port & Waterway Engineering

摘　　要：珊瑚礁灰岩作为一种特殊的岩土类型,研究其工程力学性质对促进沿海珊瑚礁地区的工程建设具有重要意义。通过对比珊瑚礁灰岩与砂性土在工程性质上存在的差异,得出港口工程规范中沉降的计算方法在珊瑚礁地基应用的局限性。在此基础上,采用Schmertmann经验(半经验)公式法和欧标SPT法对苏丹一个已建的重力式码头进行设计复核。结果表明,采用基于SPT指标的经验(半经验)公式对珊瑚礁灰岩地基沉降计算具有较强的可操作性和适用性,可为类似工程提供参考。Coral-reef limestone is a special type of rock and soil,and studying its engineering mechanical property has great significance to promote the construction of coastal coral-reef area.We compare the engineering property differences between coral-reef and normal sand,obtain the limitation of calculating the settlement of coral-reef limestone foundation by the method of port engineering specification.Based on the above,we use the Schmertmann empirical(semi-empirical)formula method and SPT method from Europe standard to re-check the foundation design for a completed gravity wharf project in Sultan.The results show that empirical(semi-empirical)settlement calculation method based on SPT value has strong operability and applicability,and it can provide references for the similar projects.

关 键 词：珊瑚礁灰岩地基 沉降计算方法 重力式码头 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]