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王    艋 ¹ , 王法景¹ , 刘    松² , 惠孟堂³

( 1. 杨凌职业技术学院交通与测绘工程学院，陕西 杨凌 712100;

2. 中国长江三峡集团有限公司，四川 成都 610041 ;

3. 北方信息控制研究院集团有限公司，江苏 南京 210000)

摘   要： 为了提高边坡位移监测精度，增强边坡灾害防范效果，研究三维激光扫描在边坡监测中的应用。利用三维激光扫描仪，获取边坡的点云数据； 采用卡尔曼滤波算法，参考边坡点云数据自身的状态转移矩阵与观测资料判断边坡点云数据最优状态，对所采集的含噪边坡点云数据进行降噪处理 。扫描降噪后边坡点云数据，利用曲率提取该点云数据的特征点，利用不在同一坐标系内的特征点构建空间坐标系，设置部分特征点为坐标系位置参数，对比不同时间点下坐标系位置参数，确定边坡某点的位移变化情况 。结果显示： 所研究方法可实现边坡点云数据降噪处理，各特征点所得位移监测与实际位移差异小于 0. 6 mm , 在监测边坡位移情况时所得位移误差均低于 3 cm , 提高了边坡位移监测精度，为边坡滑坡地质灾害防范提供了科学依据。

关键词： 三维激光扫描； 边坡监测； 点云数据； 卡尔曼滤波； 特征点； 位移

中图分类号： TN297      

文献标志码： A      

文章编号： 1005-8249 (2023) 04-0106-06

DOI : 10. 19860/j.cnki.issn1005-8249.2023.04.018

WANG Meng¹ , WANG Fajing¹ , LIU Song² , HUI Mengtang³

(1. School of Transportation and Surveying Engineering, Yangling Vocational & Technical College, Yangling 712100, China;

2. China Three Gorges Corporation , Chengdu 610041 , China;

3. North Information Control Research Academy Group Co. , Ltd. , Nanjing 210000 , China)

Abstract: The relevant contents of the Outline of the 14th Five-Year Plan reflect the higher requirements for PPP projects, and the combination of the EOD model and PPP projects is strongly advocated to help PPP projects achieve high-quality development. In order to solve the risk-sharing problem of PPP+EOD projects, the article describes the project risk loss on the basis of risk association, and then constructs a risk-sharing evolutionary game model based on the perspective of evolutionary game and obtains the evolutionary stabilization strategies under different situations. The study shows that under the condition of risk association, different risk loss values are obtained from the risk intuition loss, which affects the strategy choice of government departments and social capital, thus leading to different evolutionary outcomes for the same risk.

Keywords: PPP project; EOD model; risk sharing; risk association; evolutionary game;

∗基金项目： 杨凌职业技术学院自然科学基金项目：“三维激光扫描技术在边坡监测中的应用研究 ”（编号：ZK20-33) 。 

作者简介： 王艋  (1991—) , 男，硕士，讲师，研究方向为三维激光扫描技术 、无人机摄影测量。

收稿日期： 2022-02-18