基坑工程中的可视化分析方法

Analysis Method of Visualization in Foundation Pit Project

针对基坑工程施工的特点和目前数据分析中所存在的问题 ,对基坑工程施工数据分析中采用科学计算可视化分析的方法进行了系统的研究 ,结合体视化的算法思想 ,建立了基坑工程施工数据的可视化分析研究方法 ,提出了采用基于表面重建的体视化方法来研究施工环境的可视化问题和采用直接体视的算法来实现基坑工程施工数据可视化问题的解决方案 ;建立了用于基坑工程施工数据可视化分析的体数据模型 ,体数据中包含了基坑施工的土力学参数和位移场的三维信息。按照不同的施工阶段 ,建立了不同时间序列的系列体数据集。利用这些体数据集 ,可以可视化的分析施工每一工况下的坑外土体内各种土工参数的变化和土体位移的变化。并通过实例分析 。

To counter the construction characteristics of the foundation pit project and the problems existed in the existing data analysis, the paper makes the systematic study in analyzing the construction data of the foundation pit project using the analysis method of visualization in scientific computing. And it sets up the visualization analysis and study method for the construction data of the foundation pit project in combination of stereo algorithm thought. It also put forward the option to study on the visualization problem of the construction environment by using the visualization method of the surface reconstruction and to realize the visualization problem of the construction data of the foundation pit project by using direct stereo algorithm. It establishes the volume data models for the visualization analysis of the construction data of the foundation pit project. The volume data include the earth mechanics parameters for the foundation pit construction and the three dimensional information in the displacement field. According to the different construction stages it establishes the series volume data collection of the different time order. Using these volume data collection it can analyzes visualizationally the variation of the various geo parameters in the earth body outside the pit under every working status of the construction and the displacement variance of earth body. And it tests and verifies the feasibility and effectiveness of the above mentioned study through an example analysis.