不同水分条件下土体压缩性、黏聚力与抗剪强度室内试验研究  

Research on Laboratory Test of Compressibility,Cohesion and Shear Strength of Soil under Diff erent Water Conditions

作　　者：陈生芳 CHEN Shengfang(Jiangsu China Coal Geology Engineering Research Institute Co.,Ltd.,Changzhou 213000,Jiangsu,China)

机构地区：[1]江苏中煤地质工程研究院有限公司,江苏常州213000

出　　处：《工程技术研究》2025年第2期34-36,共3页Engineering and Technological Research

摘　　要：在土木工程建设过程中,土作为重要的建筑材料,其力学性质对工程结构的安全和稳定至关重要。文章开展不同水分条件下土体的压缩性、黏聚力和抗剪强度室内试验,旨在探讨其变化规律。结果表明,水分含量显著影响了土体的力学性质。随着含水量的增加,土体的孔隙比减小速率越快,压缩程度越明显;黏聚力则随含水量的增加先增加后降低,由此得出土样最佳含水量;抗剪强度也随含水量增加而呈现减弱的趋势。该研究成果丰富了土体力学的研究内容,也为实际工程中的土体行为预测和工程安全评估提供了科学依据。In the process of civil engineering construction,as an important building material,the mechanical properties of soil are very important to the safety and stability of engineering structures.This paper carries out laboratory tests of compressibility,cohesion and shear strength of soil under different water conditions to explore their changing rules.The results show that the water content significantly affects the mechanical properties of the soil.With the increase of water content,the pore ratio of the soil decreases faster and the degree of compression is more obvious;the cohesion increases first and then decreases with the increase of water content,and the optimum water content of soil sample is obtained;the shear strength also shows a decreasing trend with the increase of water content.The research results enrich the research content of soil mechanics,and also provide a scientific basis for soil behavior prediction and engineering safety assessment in practical engineering.

关 键 词：压缩性 黏聚力 抗剪强度 水分条件 室内试验 

分 类 号：TU43[建筑科学—岩土工程]