【作者】 李琳；

【导师】 严驰；

【作者基本信息】 天津大学 ， 岩土工程， 2004， 硕士

【摘要】 碱渣的大量堆存严重地危害着当地环境和碱厂的生存发展，将碱渣当作工程用土用于填垫工程是大规模处理碱渣的有效途径。在以往的研究和应用中，已经认识到了碱渣的一些性质，但还远远不够。为了更好的认识碱渣的工程性质，促进碱渣的大规模应用,作者结合以前的研究成果，针对先前研究成果的不足，进行了大量的室内试验。本文首先简单介绍了碱渣当前的研究现状以及碱渣的生成和矿物组成，而后主要是系统的对比分析了碱渣、二次利用碱渣和混合物的物理力学性质。强度方面主要介绍无侧限抗压强度随含水量的变化规律，抗剪强度指标粘聚力和内摩擦角随含水量的变化规律，变形方面主要包括压缩曲线，压缩系数随干密度和压缩模量随干密度的变化规律、以及固结系数随压力的变化规律。由于碱渣在宏观上的物理力学性质和天然土有较大的不同，研究它的微观机理，分析其宏观性质的微观机理，找出这两者之间的联系，是彻底认识和利用碱渣的必要前提。本文按照从一般到特殊的思路，在分析天然土的基础上，分析了碱渣颗粒和水的相互作用、碱渣颗粒的胶体性质，碱渣颗粒间的连结，碱渣结构的形成，对比分析了碱渣的和天然土的异同，而后分析了碱渣的击实特性，分析了二次利用碱渣和纯碱渣性质差别的原因，最后对碱渣的应用方面的问题作了简单介绍更多还原

【Abstract】 Largely piling up of the soda residue hinders the development of soda plant and spoils the local environment .It is a good approach to use the soda residue in engineering .In the precious research and application ,the character of the soda residue has been partially realized ,but it is not sufficient for farther making using of it .For supplementing the deficiency of the precious research and promoting the use of soda residue in large scale , the author make lots of experiments in doors and acquire lots of instructive information . Firstly the article simply introduce the research actuality and the ingredient and the forming of soda residue ,secondly the article mostly introduce the physical and mechanical character of the soda residue and the reused soda residue and the admixture of the soda residue and the fly ash and the slag .In the aspect of strength ,the article introduce the law of the unconfined press strength with the water content in soda residue and the law of the angle of internal friction and the cohesion with the water content in soda residue .In the aspect of deformation,the article introduce the pressure-void ratio curve and the law of the coefficient of compressibility and the oedometric modulus of compression with the dentisy and the law of the coefficient of consolidation with the pressure.The macroscopical physical and mechanical character of the soda residue is different from the inartificial soil,so searching after the relation between the microcosmic mechanism and the macroscopical behaviour is the necessary premise for fully knowing and using the soda in a large scale .The article analyse the interaction between the grain of soda and water and the interlink among the grains and how the configuration come into being on the analysis of the crude soil and find out the difference between the soda and the crude soil. The article analysis the character of the compacted soda residue and the cause of the diffenence between the soda residue and the reused soda residue.In the end the application of soda residue is recommend.更多还原