平板载荷试验推算单层均质土地基沉降方法探讨  

A Discussion on the Method for Estimating the Settlement of Single-layer Homogeneous Soil Foundations Using Plate Loading Tests

作　　者：宋鉴学 Song Jianxue(Guangzhou Baiyun Construction Engineering Quality Testing Co.Ltd.,Guangzhou,Guangdong 510080)

机构地区：[1]广州市白云建设工程质量检测有限公司,广东广州510080

出　　处：《江西建材》2024年第4期73-74,77,共3页

摘　　要：原位试验中的平板载荷试验是评估地基承载力和沉降特性最为可靠的一种方法,但受限于载荷板的尺寸,该试验的影响深度较小,当建筑基础的尺寸较大时,地基应力影响范围内为多层土,仅通过平板载荷试验无法反映建筑基础的实际沉降。文中旨在探讨传统土力学中地基沉降计算方法的局限性与改进方法;通过对室内侧限压缩试验曲线计算地基沉降的分析,结合现场压板载荷试验的实际沉降过程,揭示两者之间的差异,并利用平板载荷试验推算单层均质土地基沉降的适用性。The plate loading test,conducted in-situ,is one of the most reliable methods to evaluate the bearing capacity and settlement charac-teristics of soil foundations.However,due to the limited size of the loading plate,the test has a relatively shallow influence depth.When the building foundation is large in size,the stress influence range encompasses multiple soil layers.Sole reliance on the plate loading test may not fully reflect the actual settlement of the building foundation.This paper aims to explore the limitations and improvement methods of foundation settlement calculation methods in traditional soil mechanics.By analyzing curve derived from indoor confined compression tests and comparing it with the actual settlement process observed in on-site plate loading tests,the disparities between the two are identified.Furthermore,the ap-plicability of estimating the settlement of single-layer homogeneous soil foundations through plate loading tests is discussed.

关 键 词：平板载荷试验 单层均质土地基 地基沉降 

分 类 号：TU470[建筑科学—结构工程]