多尺度地质力学约束与融合土壤建模的越野路径规划多级优化方法
王锐 , 南洋 , 陈伟涛 , 王瑞禛 , 陈浩 , 秦绪文
地球科学 ›› 2026, Vol. 51 ›› Issue (6) : 2407 -2417.
多尺度地质力学约束与融合土壤建模的越野路径规划多级优化方法
A Multilevel Optimization Framework for Off-Road Path Planning Incorporating Multiscale Geomechanical Constraints and Integrated Soil Modeling
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越野路径规划在应急救援等特殊场景任务中具有重要战略价值,但现有模型在复杂地形中存在通行性模型精度不足与求解效率低下的问题.为此,基于地质力学约束和融合土壤建模的思想,构建了通行性评估支撑的越野路径规划模型.首先,引入土壤湿度-硬度经验模型(SMSP II)预测土壤额定圆锥系数(rating cone index,RCI),结合车辆额定圆锥指数(vehicle cone index,VCI),构建多要素约束且融合土壤通行性指标的通行度栅格图;在此基础上,提出一种融合分治策略与启发式搜索的改进NSGA⁃II算法,并与Dijkstra算法集成,构建了多级混合路径优化框架.研究结果表明,论文提出的模型在路径可行性保持不变的前提下,计算效率提升约45%,路径通行度提升2%,路径长度缩短约2.1%.研究验证了论文提出的技术方法体系在复杂地质环境下越野路径规划的优越性能.
Off-road path planning plays a strategically important role in special mission scenarios such as emergency rescue. However, existing algorithmic models often suffer from low accuracy in passability modeling and poor computational efficiency in complex terrains. To improve planning accuracy and efficiency, this study introduces the Soil Moisture-Strength Prediction model (SMSP II) to estimate the rated cone index (RCI) of soil, and combines it with the vehicle cone index (VCI) to construct a traversability grid map that integrates multiple constraints and soil passability indicators. On this basis, an improved NSGA-II algorithm is proposed, incorporating a divide-and-conquer strategy and heuristic search, and is further integrated with the Dijkstra algorithm to build a multi-level hybrid path optimization framework. Experimental results demonstrate that the proposed method improves computational efficiency by approximately 45%, enhances path passability by 2%, and reduces path length by about 2.1%, while maintaining path feasibility. The findings verify the superior performance of the proposed technical framework for off-road path planning in complex geological environments.
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中国地质调查局项目(DD20220301601)
中国地质调查局项目(20251960420)
地质探测与评估教育部重点实验室主任基金(GLAB2024ZR01)
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