土力学的新概念与纤维土的有效自重应力  

New Concepts of Soil Mechanics and Effective Dead Stresses of Fibrous Soils

作　　者：蒙理明 MENG Li-ming(Hainan Qizhu Design Consulting Co Ltd,Haikou 570102,China)

机构地区：[1]海南柒筑设计咨询有限公司,海口570102

出　　处：《建材世界》2023年第4期119-124,共6页The World of Building Materials

摘　　要：用土力学的新概念对纤维土进行分析,提出了绝对压强下纤维土的绝对自重应力、有效自重应力的新概念。土的抗剪强度取决于微结构单元之间的结构连结。总土体的(土颗粒)接触与联接率有两种算法,提出了通过电镜扫描进行计算的一种新算法。分析计算了沿海软土及海洋土的有效自重应力,包括各类土和各类结构。粉质黏土按现行规范的“对黏性土宜按水土合算计算”偏于危险。The new concept of soil mechanics is used to analyze fibrous soil.A new concept of absolute dead weight stress and effective dead weight stress of fibrous soil under absolute pressure is proposed.Soil’s shear strength depends on the structural connections between the micro-structural units.There are two algorithms for the contact and connection rate of total soil.A new algorithm based on scanning electron microscope is presented.The effective dead stress of coastal soft soil and Marine soil is analyzed and calculated,including all kinds of soil and all kinds of structures.Silty clay according to the current standard"for viscous soil should be calculated according to the value of soil and water"tends to be dangerous.

关 键 词：纤维土 绝对自重应力 有效自重应力 接触与联接率 自由水通道率 土结构 

分 类 号：TU43[建筑科学—岩土工程]