The soil three-dimensional (3D) pore structure information model has become a new hotspot in the research of cross-scale disposal of information such as ecology, engineering, and geology. It can solve problems such as the intelligent evaluation of ecological water–soil–air–plant feedback, intelligent risk control of foundation compression deformation, and multiscale intelligent disaster prediction and prevention. However, the current soil 3D pore structure model primarily draws on the global one-time static generation in simulation software, leading to low reliability, low stability of multiple generations, poor variability, difficulty in real-time transformation, high consumption of computing resources, and long generation time, making it challenging to meet the requirements of the rapid processing of information models. Therefore, this study adopts the 3D Drawing Protocol (WebGL) technology and implements the scaling, rotation, and translation transformation of 3D pore structures based on the principle of dynamic affine transformation. The random generation and distribution of pores are realized using the improved Monte Carlo method, and the loading response efficiency of the system is optimized. The dynamic interactive operation of arbitrary increasing and decreasing of pore model is realized using the ray and plane intersection detection principle. Finally, this information system established a visual correlation between the content and reaction time of water-retaining agents and soil porosity and pore distribution through tests on the impact of water-retaining agents on soil pore changes. The information system achieved the real-time tracking of soil pore changes under the action of water-retaining agents. This research solves the problems of static and low generation efficiency of the soil mesopore structure in traditional models and realizes the real-time characterization and visualization of dynamic changes and the distribution of the soil pore structure under the influence of external conditions, which can provide an intuitive visualization platform for mesogeological structure research.

中文翻译：

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土壤三维孔隙结构信息模型的局部并行自由生成与动态仿射变换方法


土壤三维（3D）孔隙结构信息模型已成为生态学、工程学、地质学等跨尺度信息处理研究的新热点。可以解决生态水-土-空气-植物反馈智能评价、地基压缩变形智能风险控制、多尺度智能灾害预测与防治等问题。然而，目前的土壤3D孔隙结构模型主要借鉴模拟软件中的全局一次性静态生成，导致可靠性低、多代稳定性低、可变性差、实时转换困难、计算资源消耗高、且生成时间长，难以满足信息模型快速处理的要求。因此，本研究采用3D绘图协议（WebGL）技术，基于动态仿射变换原理实现3D孔隙结构的缩放、旋转和平移变换。利用改进的蒙特卡罗方法实现了孔隙的随机生成和分布，优化了系统的加载响应效率。利用射线与平面相交检测原理，实现了孔隙模型任意增减的动态交互操作。最后，该信息系统通过保水剂对土壤孔隙变化影响的测试，建立了保水剂含量和反应时间与土壤孔隙度和孔隙分布之间的直观关联。该信息系统实现了保水剂作用下土壤孔隙变化的实时跟踪。 该研究解决了传统模型中土壤中孔结构静态、生成效率低的问题，实现了土壤孔隙结构在外界条件影响下的动态变化和分布的实时表征和可视化，可为用于介观地质结构研究的直观可视化平台。