摘要
基于相位编组直线提取算法的深厚富水沙层突水溃沙危险性分区仿真研究,对深厚富水沙层遥感图像中坐标点的梯度及相位进行计算,结合相位差对其进行聚类编组,实现地质结构提取;构建危险性评价体系,分别计算主控因素的熵值,实现指标权重分配;计算不同评价单元下的突水溃沙危险性指数,制定危险性分区标准,从而实现分区评价。对提出方法进行危险性评价效果的检验,结果表明:预测评价结果与实际突水溃沙区域的吻合度更高,具备较为理想的评价效果。
Based on the simulation study on the risk zoning of water-sand inrush in deep water-rich sand layer which adopted phase grouping straight line extraction algorithm,this paper calculated the gradient and phase of the coordinate points in the remote sensing image of deep water-rich sand layer,and grouped them by the phase difference to fulfill the extraction of geological structure.The risk assessment system was thus constructed.It also calculated the entropy value of the main control factors to realize the index weight distribution;calculated the risk index of water-sand inrush under different evaluation units,and formulated the risk zoning standard to complete the zoning evaluation;tested the risk assessment effect of the proposed method,respectively.The result shows that,the predicted evaluation results are in good consistency with the actual water-sand inrush areas,and have an ideal evaluation effect.
作者
吴国鹏
WU Guopeng(China Railway 18th Bureau Group Municipal Engineering Co.,Ltd.,Tianjin 300000,China)
出处
《路基工程》
2025年第3期207-211,共5页
Subgrade Engineering
关键词
富水沙层
相位编组
直线提取
突水溃沙
精确分区
吻合度
危险性
water-rich sand layer
phase grouping
line extraction
water-sand inrush
precise partitioning
consistency
risk
