针对风积土地区工程病害分类、影响因素和防治措施，以典型的风积土地区———辽西为例，首先通过现场调查、室内试验和工程建设要求三者相结合的方法，从病害现象和病害机理两个角度分别对工程病害进行分类。然后基于“工程地圈系统”和层次分析法，分析引起工程病害的四级影响因素，并针对每类工程列出相应的防治措施，最终形成了系统化的风积土地区工程病害识别和防治简单框架，以利于工程设计和施工。结果表明：①风积土是一种以粗颗粒为主、颗粒级配良好、中等压缩性、抗剪强度低、振动易液化、具有明显结构性但不具有明显湿陷性的粉质粘土；②风积土地区工程病害主要因压缩沉降、剪切破坏、振（震）陷、振（震）动液化、湿陷破坏、冻胀融沉、风化剥落、水流冲刷等原因引起；③基于“工程地圈系统”，风积土地区工程病害主要受地质圈、生物圈和大气圈的耦合影响，影响因素主要包括：风积土的物理力学性质、人类工程活动和自然环境；④工程病害防治有必要形成系统化的病害识别、调控和防治框架，便于工程病害防治工作规范化、流程化、标准化和信息化。%As for the disease classification,influencing factors and controlling measurements for Aeolian Soil engineering in western Liaoning Province of China,methods of field investigation,indoor experiment and construc-tion requirements analysis are used.The disease classifications are obtained in terms of disease phenomenon and disease mechanism respectively,then analyzing the four-level influencing factors under the Engineering-Geosphere System and Analytic Hierarchy Process,and giving the controlling measurements,thus forming the systematical and simple frame for engineering disease identification and control.The results show:①Aeolian Soil is silty clay with coarse granule,good gradation,medium compressibility,low shear strength,easy liquefaction,apparent structure and non-obvious collapsibility;②Engineering disease in Aeolian Soil area often develops under the reason of com-pressible settlement,shearing damage,vibration-subsidence and liquefaction,collapsibility,frost-heave and thaw-settlement,weathering,current scour,etc.;③Based on the Engineering-Geosphere System,the main influencing factors for engineering disease in Aeolian Soil area are physicomechanical property of Aeolian Soil,human activity and natural environment;④It’s necessary to establish systematical frame of disease identification,adjusting and control,thus making the work normative,processive,standardizing and informatized.
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