建井安全监测中井下结构安全评估建模方法

发布时间：2018-05-23 06:44

本文选题：建井 + 硐室群　；参考：《煤矿安全》2015年09期

【摘要】：立井建设安全监测过程中,需要采用FLAC3D对立井建设中开挖的大硐室、硐室群等复杂结构进行安全性评估,但FLAC3D在模拟较复杂模型的情况下,建立三维网格模型的效率很低,建模时间长且难度大;基于软件内部单元节点生成规则,研究了2种软件内部单元节点编号顺序并进行了转换,最终导出了FLAC3D可以识别的文档并生成了实体单元和结构单元。结果表明:这种三维建模方法可行,使原有费时费力的建模变的简单快速,节约建模时间70%以上,对指导立井建设中的安全监测项目有较大的价值。
[Abstract]:In the process of safety monitoring of shaft construction, it is necessary to use FLAC3D to evaluate the safety of large cavern, chamber group and other complex structures excavated in vertical shaft construction. However, when FLAC3D simulates more complex models, the efficiency of establishing 3D mesh model is very low. The modeling time is long and difficult. Based on the rules of generating internal unit nodes, two kinds of software internal unit node numbering order are studied and converted. Finally, the documents recognized by FLAC3D are derived and the entity unit and structure unit are generated. The results show that this 3D modeling method is feasible, makes the original time-consuming and laborious modeling simple and fast, saves more than 70% of modeling time, and has great value for guiding the safety monitoring project in shaft construction.
【作者单位】：北京中煤矿山工程有限公司;煤矿深井建设技术国家工程实验室;
【基金】：“十二五”国家科技支撑计划资助项目(2012BAK04B09) 天地科技青年基金资助项目(KJ-2014-BJZM-01)
【分类号】：TD76

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