关于压板载荷试验确定地基承载力问题的讨论  

Determination of bearing capacity of foundation by pressure plate load tests

作　　者：杨光华[1,2] YANG Guanghua(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510610,China;The Geotechnical Engineering Technology Center of Guangdong Province,Guangzhou 510610,China)

机构地区：[1]广东省水利水电科学研究院,广东广州510610 [2]广东省岩土工程技术研究中心,广东广州510610

出　　处：《岩土工程学报》2023年第7期1540-1542,共3页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金项目(52078143)。

摘　　要：地基承载力应由实际基础下地基的强度和变形双控确定。直接由压板载荷试验确定地基承载力可以保证强度安全,不能保证变形安全。要实现变形控制设计,地基承载力应该由设计师取定更合理,设计师可以从压板试验获取土的变形与强度参数,用于计算实际基础的荷载沉降p-s曲线,由p-s曲线按强度和变形双控确定合理的地基承载力。The bearing capacity of a foundation should be determined by its strength and deformation under the actual foot.It can be determined directly by the pressure plate load tests,which can ensure the strength safety,but can not ensure the deformation safety.In order to realize the design according to the deformation characteristics,the bearing capacity of the foundation should be more reasonablly determined by the designer.The designer can obtain the deformation and strength parameters of the soil from the pressure plate load tests to calculate the load-settlement p-s curve of the actual foundation.Then,based on the p-s curve,the bearing capacity of the foundation is reasonably determined according to the dual control of strength and deformation.

关 键 词：地基承载力 压板载荷试验 变形控制 切线模量法 

分 类 号：TU43[建筑科学—岩土工程]