垃圾土变形参数与比贯入阻力及物质组成关系研究  

Study on the relationship between deformation parameters and specific penetration resistance and the material composition of garbage soil

作　　者：高点 李忠享 张贺 廖志为 王磊 Gao Dian;Li Zhongxiang;Zhang He;Liao Zhiwei;Wang Lei(Central&Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan 430010,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,武汉430010

出　　处：《工程勘察》2025年第3期27-34,共8页Geotechnical Investigation & Surveying

摘　　要：垃圾土变形参数一般采用室内压缩固结试验或现场载荷试验获取,但这两种试验均存在一系列缺陷;相比垃圾土,常规土体变形参数还可利用简易原位测试数据与其对应关系获取,借鉴此类方法,本次研究尝试建立垃圾土变形参数与原位测试数据间的回归方程,而垃圾土物质组成复杂,在建立回归方程时如何考虑其物质组成的影响也值得研究。本文结合实际工程,进行了垃圾土现场载荷试验、静力触探试验和成分分析试验,利用试验结果对变形模量、比贯入阻力和物质组成间相关性进行了研究,构建了垃圾土变形模量与比贯入阻力的回归方程,同时引入物质组成参数对方程进行优化,提高了回归方程精确性,优化后方程的拟合值与试验值偏差在2%~8%,为类似场地简易获取垃圾土变形模量提供了参考。The deformation parameters of garbage soil are generally obtained through indoor compression consolidation tests or on-site load tests,but both tests have a series of defects.Compared with garbage soil,the deformation parameters of conventional soil can also be obtained by using simple in-situ test data and their corresponding relationships.Drawing on this method,this study attempts to establish a regression equation between the deformation parameters of garbage soil and the in-situ test data.However,the material composition of garbage soil is complex,and it is worth studying how to consider the influence of its material composition when establishing the regression equation.This article combines the practical engineering to conduct in-situ load tests,static penetration tests,and composition analysis tests on garbage soil.Using the test results,the correlation between deformation modulus,specific penetration resistance,and material composition is studied,and a regression equation between the deformation modulus and the specific penetration resistance of garbage soil is constructed.At the same time,material composition parameters are introduced to optimize the equation,improving the accuracy of the regression equation.The fitted values of the optimized equation deviate from the test values by 2%~8%,providing a reference for obtaining deformation modulus of garbage soil in similar sites.

关 键 词：垃圾土 变形参数 比贯入阻力 物质组成 回归方程 

分 类 号：TU192[建筑科学—建筑理论]