Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data

The safety retaining wall is a critical infrastructure in ensuring the safety of both rock removal vehicles and personnel. However, factors such as precipitation infiltration, tire impact from rock removal vehicles, and rolling rocks can cause local damage to the safety retaining wall of the dump, r...

Full description

Bibliographic Details
Main Authors: Yachun Mao, Xin Zhang, Wang Cao, Shuo Fan, Hui Wang, Zhexi Yang, Bo Ding, Yu Bai
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/12/5686
_version_ 1797592651972739072
author Yachun Mao
Xin Zhang
Wang Cao
Shuo Fan
Hui Wang
Zhexi Yang
Bo Ding
Yu Bai
author_facet Yachun Mao
Xin Zhang
Wang Cao
Shuo Fan
Hui Wang
Zhexi Yang
Bo Ding
Yu Bai
author_sort Yachun Mao
collection DOAJ
description The safety retaining wall is a critical infrastructure in ensuring the safety of both rock removal vehicles and personnel. However, factors such as precipitation infiltration, tire impact from rock removal vehicles, and rolling rocks can cause local damage to the safety retaining wall of the dump, rendering it ineffective in preventing rock removal vehicles from rolling down and posing a huge safety hazard. To address these issues, this study proposed a safety retaining wall health assessment method based on modeling and analysis of UAV point-cloud data of the safety retaining wall of a dump, which enables hazard warning for the safety retaining wall. The point-cloud data used in this study were obtained from the Qidashan Iron Mine Dump in Anshan City, Liaoning Province, China. Firstly, the point-cloud data of the dump platform and slope were extracted separately using elevation gradient filtering. Then, the point-cloud data of the unloading rock boundary was obtained via the ordered crisscrossed scanning algorithm. Subsequently, the point-cloud data of the safety retaining wall were extracted using the range constraint algorithm, and surface reconstruction was conducted to construct the Mesh model. The safety retaining wall mesh model was isometrically profiled to extract cross-sectional feature information and to compare the standard parameters of the safety retaining wall. Finally, the health assessment of the safety retaining wall was carried out. This innovative method allows for unmanned and rapid inspection of all areas of the safety retaining wall, ensuring the safety of rock removal vehicles and personnel.
first_indexed 2024-03-11T01:57:12Z
format Article
id doaj.art-908ac16f27fc484ea341640876d1ac1c
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-11T01:57:12Z
publishDate 2023-06-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-908ac16f27fc484ea341640876d1ac1c2023-11-18T12:34:42ZengMDPI AGSensors1424-82202023-06-012312568610.3390/s23125686Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud DataYachun Mao0Xin Zhang1Wang Cao2Shuo Fan3Hui Wang4Zhexi Yang5Bo Ding6Yu Bai7School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources & Civil Engineering, Northeastern University, Shenyang 110819, ChinaThe safety retaining wall is a critical infrastructure in ensuring the safety of both rock removal vehicles and personnel. However, factors such as precipitation infiltration, tire impact from rock removal vehicles, and rolling rocks can cause local damage to the safety retaining wall of the dump, rendering it ineffective in preventing rock removal vehicles from rolling down and posing a huge safety hazard. To address these issues, this study proposed a safety retaining wall health assessment method based on modeling and analysis of UAV point-cloud data of the safety retaining wall of a dump, which enables hazard warning for the safety retaining wall. The point-cloud data used in this study were obtained from the Qidashan Iron Mine Dump in Anshan City, Liaoning Province, China. Firstly, the point-cloud data of the dump platform and slope were extracted separately using elevation gradient filtering. Then, the point-cloud data of the unloading rock boundary was obtained via the ordered crisscrossed scanning algorithm. Subsequently, the point-cloud data of the safety retaining wall were extracted using the range constraint algorithm, and surface reconstruction was conducted to construct the Mesh model. The safety retaining wall mesh model was isometrically profiled to extract cross-sectional feature information and to compare the standard parameters of the safety retaining wall. Finally, the health assessment of the safety retaining wall was carried out. This innovative method allows for unmanned and rapid inspection of all areas of the safety retaining wall, ensuring the safety of rock removal vehicles and personnel.https://www.mdpi.com/1424-8220/23/12/5686UAV point-cloud datasafety retaining wallelevation gradient filteringordered criss-crossed scanning algorithmsurface reconstructionhealth assessment
spellingShingle Yachun Mao
Xin Zhang
Wang Cao
Shuo Fan
Hui Wang
Zhexi Yang
Bo Ding
Yu Bai
Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
Sensors
UAV point-cloud data
safety retaining wall
elevation gradient filtering
ordered criss-crossed scanning algorithm
surface reconstruction
health assessment
title Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
title_full Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
title_fullStr Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
title_full_unstemmed Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
title_short Research on the Health Assessment Method of the Safety Retaining Wall in a Dump Based on UAV Point-Cloud Data
title_sort research on the health assessment method of the safety retaining wall in a dump based on uav point cloud data
topic UAV point-cloud data
safety retaining wall
elevation gradient filtering
ordered criss-crossed scanning algorithm
surface reconstruction
health assessment
url https://www.mdpi.com/1424-8220/23/12/5686
work_keys_str_mv AT yachunmao researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT xinzhang researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT wangcao researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT shuofan researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT huiwang researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT zhexiyang researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT boding researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata
AT yubai researchonthehealthassessmentmethodofthesafetyretainingwallinadumpbasedonuavpointclouddata