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王    艋 ¹ , 王法景¹ , 劉    松² , 惠孟堂³

( 1. 楊凌職業(yè)技術(shù)學院交通與測繪工程學院，陜西 楊凌 712100;

2. 中國長江三峽集團有限公司，四川 成都 610041 ;

3. 北方信息控制研究院集團有限公司，江蘇 南京 210000)

摘   要： 為了提高邊坡位移監(jiān)測精度，增強邊坡災害防范效果，研究三維激光掃描在邊坡監(jiān)測中的應用。利用三維激光掃描儀，獲取邊坡的點云數(shù)據(jù)； 采用卡爾曼濾波算法，參考邊坡點云數(shù)據(jù)自身的狀態(tài)轉(zhuǎn)移矩陣與觀測資料判斷邊坡點云數(shù)據(jù)最優(yōu)狀態(tài)，對所采集的含噪邊坡點云數(shù)據(jù)進行降噪處理 。掃描降噪后邊坡點云數(shù)據(jù)，利用曲率提取該點云數(shù)據(jù)的特征點，利用不在同一坐標系內(nèi)的特征點構(gòu)建空間坐標系，設(shè)置部分特征點為坐標系位置參數(shù)，對比不同時間點下坐標系位置參數(shù)，確定邊坡某點的位移變化情況 。結(jié)果顯示： 所研究方法可實現(xiàn)邊坡點云數(shù)據(jù)降噪處理，各特征點所得位移監(jiān)測與實際位移差異小于 0. 6 mm , 在監(jiān)測邊坡位移情況時所得位移誤差均低于 3 cm , 提高了邊坡位移監(jiān)測精度，為邊坡滑坡地質(zhì)災害防范提供了科學依據(jù)。

關(guān)鍵詞： 三維激光掃描； 邊坡監(jiān)測； 點云數(shù)據(jù)； 卡爾曼濾波； 特征點； 位移

中圖分類號： TN297      

文獻標志碼： A      

文章編號： 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;

?基金項目： 楊凌職業(yè)技術(shù)學院自然科學基金項目：“三維激光掃描技術(shù)在邊坡監(jiān)測中的應用研究 ”（編號：ZK20-33) 。 

作者簡介： 王艋  (1991—) , 男，碩士，講師，研究方向為三維激光掃描技術(shù) 、無人機攝影測量。

收稿日期： 2022-02-18