辽阳市区软土的工程地质特征

辽阳市区地表浅部呈透镜状断续分布的松软土体———淤泥质粉质粘土为静水或缓慢流水环境沉积，经生物化学作用而形成的。本文对其分布、形成、物质结构及工程地质特性进行了较系统的描述。并依据大量现场测试及室内土工试验成果，分析论述了该层软土天然独特的含水量高，孔隙比大，强度低，压缩性高，具触变性及承载力低的工程地质特性对勘察施工及建筑物稳定性的不良影响，提出了避让、挖除、选择合适桩型等科学合理的工程处理建议。

ENGINEERING GEOLOGIC CHARACTERISTICS OF SOFT SOIL IN LIAOYANG CITY

A layer of soft soil off and on scattered distributes in Liaoyang city. The paper considers that it deposits in an environment of stillwater or slowly running water through biochemical process. It is systematically described on the aspects of distribution, forming mechanics, texture and engineering geologic characteristics of the soft soil. The soft soil is high in water content,void ratio and compression property, and low in intensity and loading capacity. Then the paper proposes some scientific and reasonable engineering technologies, such as avoiding, digging out, and choosing a right pile type, in order to deal with the adverse influence to exploration and construction, and to the stability of buildings.