Affiliation:
1. School of Geomatics and Urban Spatial Informatics, Beijing University of Civil Engineering and Architecture, Beijing 102616, China
2. Research Center for Urban Big Data Applications, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Abstract
The stability of the Great Wall is mainly affected by traffic vibrations and natural hazards, such as strong winds, heavy rainfall, and thunderstorms, which are extremely harmful to the safety of the Great Wall. To determine the impact of the above factors on the Great Wall, a comparative analysis based on MEMS (micro-electro-mechanical system) accelerometer data was conducted between the non-impacts and the impacts of the above factors. An analysis of the relationship between vibration acceleration and each potential hazard based on a visual time series chart was presented using the data of accelerometers, traffic video, meteorology, rainfall, and wind. According to the results, traffic vibration is one of the primary dangerous factors affecting the stability of the Great Wall, Moreover, the intensity of the vibrations increases with the traffic flow. Thunderstorms also influence the stability of the Great Wall, with enhanced thunderstorm excitation resulting in increased vibration displacement. Furthermore, wind load is an influencing factor, with average wind speeds greater than 9 m/s significantly affecting the stability of the Great Wall. Rainfall has no impact on the stability of the Great Wall in the short term. This research can provide important guidance for risk assessment and protection of the Great Wall.
Funder
National Natural Science Foundation of China
The Pyramid Talent Training Project of Beijing University of Civil Engineering and Architecture
The young teachers ‘scientific research ability promotion plan funding of Beijing University of Civil Engineering and Architecture
National Key Research and Development Program of China
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference25 articles.
1. Basic issues and research directions of the digital restoration of the Great Wall;Li;Natl. Remote Sens. Bull.,2021
2. Impact Analysis and Evaluation of Vehicle-driving-induced Vibration on the Ancient Great Wall;Du;Chin. Earthq. Eng. J.,2019
3. The idea of using Bayesian networks in forecasting impact of traffic-induced vibration transmitted through the ground on residential buildings;Agata;Geosciences,2019
4. Experimental analysis of the traffic-induced-vibration on an ancient lodge;Giacomo;Struct. Control Health Monit.,2022
5. Wang, M. (2021). Study on the Dynamic Response of the Ming Great Wall under the Vibration of Ground Traffic. [Ph.D. Thesis, Beijing Jiaotong University].