基于实时更新数值模型的高陡边坡动态仿真分析方法及应用

发布时间：2018-05-07 15:53

本文选题：边坡工程 + 实时更新数值模型　；参考：《岩土力学》2016年08期

【摘要】：在水电工程中,河谷两遍的工程边坡具有尺度大、高而陡的特点。同时这些边坡服务年限长,稳定性要求高。对于耦合考虑施工进度和工程安全的动态分析还较少涉及。由于地质参数、边坡结构和开挖支护的实时变化,对边坡工程安全的实时评价已成为制约水利水电工程建设安全的关键技术问题。考虑边坡施工过程中开挖进度的调整、新地质信息的揭露、支护方案的修改及计算参数的修正等信息实时变化的客观实际,重点针对目前较少涉及的施工期高边坡工程安全的实时分析和控制问题,提出了基于数值模拟技术的边坡实时安全仿真方法;基于数据库技术和ABAQUS二次开发技术实现施工进度信息、地质信息及支护信息到数值计算模型的动态映射,开发了边坡安全实时分析系统,最终实现了与施工进程相适应的边坡安全状态实时仿真分析和预测。
[Abstract]:In hydropower engineering, the engineering slope twice in the valley has the characteristics of large scale, high and steep. At the same time, these slopes have long service life and high stability requirements. The dynamic analysis of coupling considering construction schedule and engineering safety is less involved. Due to the real-time variation of geological parameters, slope structure and excavation support, the real-time evaluation of slope engineering safety has become a key technical problem restricting the construction safety of water conservancy and hydropower projects. Considering the objective reality of the real-time change of the excavation schedule during the slope construction, the disclosure of the new geological information, the modification of the support scheme and the modification of the calculation parameters, etc. Focusing on the real-time analysis and control of the safety of high slope engineering in construction period, a real-time safety simulation method based on numerical simulation technology is proposed. Based on database technology and ABAQUS secondary development technology, the dynamic mapping of construction progress information, geological information and support information to numerical calculation model is realized, and a real-time slope safety analysis system is developed. Finally, the real-time simulation analysis and prediction of slope safety state adapted to the construction process are realized.
【作者单位】：天津大学水利工程仿真与安全国家重点实验室;
【基金】：天津市应用基础与前沿技术研究计划青年项目(No.15JCQNJC08000) 国家自然科学基金青年项目(No.51509182);国家自然科学基金创新研究群体科学基金(No.51321065)~~
【分类号】：TV223

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