铁路路基岩溶地面塌陷模型分析与讨论

为建立合理的岩溶地面塌陷分析评价和切实的防治设计方法，文中通过对铁路路基典型的岩溶地面塌陷模型进行分类和抽象研究，归纳了岩溶地面塌陷的基本模型和塌陷机制，提出了塌陷物质特征、运移与塌陷通道特征、运移与塌陷动力特征三个岩溶地面塌陷基本因素。结合塌陷模型机理和塌陷基本特征对预测评价方法展开讨论，提出了建立岩溶地面塌陷动态预测评价分析的基本思路和方法。

Analysis and Discussion on Karst Surface Collapse Model in Railway Subgrade

In order to establish reasonable evaluation method for karst surface collapse and practical prevention method,this paper summarizes the basic model of karst surface collapse and its mechanism through classification and Abstract study of the typical karst surface collapse model in railway subgrade.It puts forward three basic factors for karst surface collapse such as physical characteristics of collapse,displacement and collapse channel characteristics,displacement and collapse dynamic characteristics.Combined with collapse model mechanism and its basic characteristics,this paper discusses prediction method of surface collapse and puts forward the basic thought and method for dynamic prediction and analysis of karst surface collapse.