采空区三维可视化模型构建及其冒落状况分析

Construction of 3D Visual Model in the Mined-out Areas and Its Caving Condition Analysis

如何对地下采空区的分布范围、空间形态特征和采空区的冒落状况等进行量化评判,一直是困扰工程技术人员进行采空区潜在危害性评价及合理确定采空区处治对策的关键技术难题。该文基于现场大量钻孔地质编录数据,应用澳大利亚Surpac软件,详细介绍了构建高速公路隧道下伏采空区三维可视化模型的方法和实现步骤,并对采空区顶板的冒落状况进行了评价分析,研究成果对指导类似工程实践具有重要的理论意义和工程实用价值。

It is the key technology for how to quantitatively evaluate the distributed range, the spatial form characteristics, and the caving condition in underground mined-out areas, which is also the troublesome problem for hazardous assessment and treatment technology in the mined-out areas. Based on geologic record of the drill holes, by using the Australian Surpae software, the construction method and operating procedure are introduced in detail, which is the 3D visual model for the mined-out areas under expressway tunnel project, and the caving character of the mined-out regions is also evaluated. These research results are of important theoretical meaning to direct the practice for similar engineerings.