摘要
河道淤积会影响河道行洪排涝、弱化河道蓄水能力及污染水体,因此需进行河道淤积监测和定期清淤。提出一种基于无人船与静力触探结合的河道淤积探测技术,通过无人船搭载测深仪获取淤泥表面高程,通过静力触探获取淤泥底面高程,利用数学插值模型对淤泥底部高程进行内插,得到完整的淤泥底面高程,然后绘制淤泥表面以及底面的断面图,利用断面法计算河道淤积量。提出4种数学插值方法,通过实际勘测评定4种插值方式的精度,比较4种数学插值方法计算的淤积监测方量与实际清淤方量,以高斯模型为变异函数的克里金插值结果精度最高,适用于河道淤积监测方量计算。
The river siltation affects the river flood drainage,weaken river storage,and pollute water bodies,so river siltation monitoring and regular dredging is necessary.This paper proposes a river siltation detection technology based on unmanned surface vessel combination with the static tactile search,obtain the elevation of the silt surface by the unmanned surface vessel equipped with a sounder,obtain the elevation of the silt bottom by the static tactile search,interpolate the bottom elevation.Draw the cross-sectional diagram of the silt surface and the bottom surface.Calculate the river siltation amount by the cross-sectional method.By comparing the amount of siltation monitoring calculated by the four mathematical interpolation methods with the actual amount of dredging.The Kriging interpolation results with Gaussian Model as the variogram function have the highest accuracy,which is suitable for the calculation of river siltation monitoring quantity.
作者
李亚飞
唐远彬
缪盾
LI Yafei;TANG Yuanbin;MIAO Dun(Zhejiang College of Construction,Hangzhou 311231,China;Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310020,China)
出处
《测绘工程》
2024年第6期75-80,共6页
Engineering of Surveying and Mapping
关键词
无人船
静力触探
淤积监测
数学插值
高斯模型
unmanned surface vessel
static tactile search
siltation monitoring
mathematical interpolation
Gaussian Model
