Search

Your search keyword '"Qi, Shunshun"' showing total 29 results
Start Over Author "Qi, Shunshun"
29 results on '"Qi, Shunshun"'

12. Preliminary Study on InSAR-Based Uplift or Subsidence Monitoring and Stability Evaluation of Ground Surface in the Permafrost Zone of the Qinghai–Tibet Engineering Corridor, China

Author

Du, Qingsong, primary, Chen, Dun, additional, Li, Guoyu, additional, Cao, Yapeng, additional, Zhou, Yu, additional, Chai, Mingtang, additional, Wang, Fei, additional, Qi, Shunshun, additional, Wu, Gang, additional, Gao, Kai, additional, and Li, Chunqing, additional

Published
2023
Full Text
View/download PDF

14. Damage characteristics of the Qinghai-Tibet Highway in permafrost regions based on UAV imagery.

Author

Chai, Mingtang, Li, Guoyu, Ma, Wei, Chen, Dun, Du, Qingsong, Zhou, Yu, Qi, Shunshun, Tang, Liyun, and Jia, Hailiang

Subjects
DRONE aircraft, PERMAFROST, IMAGE recognition (Computer vision), GEOGRAPHIC information systems, INFORMATION superhighway, EMBANKMENTS, HIGHWAY engineering
Abstract

For the particular engineering-geological conditions and natural environment in permafrost regions, the highway has a high damage ratio during the operation. In warm and ice-rich permafrost regions, highway pavement and embankment have poor serviceability, which threatens driving the vehicle and safe operation. Traditional field surveys on highway damage cannot entirely, rapidly and precisely obtain the distress information along the whole road. In this paper, the Qinghai-Tibet Highway (QTH) pavement distress was investigated in 550-km-long permafrost regions based on the field surveys in 2014 and 2019 and the unmanned aerial vehicle (UAV) imagery. The type and damage ratio of distress were extracted by the remote sensing image classification method. The pavement roughness and embankment height were acquired by the spatial analysis of geographical information system. This paper provides a novel insight and efficient method for the distress investigation and exploration of distress formation in permafrost region, which can be applied in other similar engineering projects in the cold and inclement permafrost region. Furthermore, this paper also presents valuable and first-hand field data for evaluating highway serviceability and prevention of road damage during operation and maintenance stages. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

15. Distribution and Degradation Processes of Isolated Permafrost near Buried Oil Pipelines by Means of Electrical Resistivity Tomography and Ground Temperature Monitoring: A Case Study of Da Xing’anling Mountains, Northeast China

Author

Wu, Gang, primary, Li, Guoyu, additional, Cao, Yapeng, additional, Chen, Dun, additional, Qi, Shunshun, additional, Wang, Fei, additional, Gao, Kai, additional, Du, Qingsong, additional, Wang, Xinbin, additional, Jing, Hongyuan, additional, and Zhang, Zhenrong, additional

Published
2023
Full Text
View/download PDF

23. Bibliometric Analysis of the Permafrost Research: Developments, Impacts, and Trends.

Author

Du, Qingsong, Li, Guoyu, Chen, Dun, Zhou, Yu, Qi, Shunshun, Wang, Fei, Mao, Yuncheng, Zhang, Jun, Cao, Yapeng, Gao, Kai, Wu, Gang, Li, Chunqing, and Wang, Yapeng

Subjects
BIBLIOMETRICS, PERMAFROST, SYNTHETIC aperture radar, RESEARCH & development, WATER shortages, ENVIRONMENTAL degradation
Abstract

Permafrost is a significant part of the cryosphere, which has gained increasing attention from scientists, policy-makers, and the general public due to global warming, environmental degradation, water shortages, and intense human activities. Although many permafrost research review articles have been published, these studies were predominantly limited to either one subject or one field, while systematic studies about permafrost based on bibliometric analysis methods remain limited. We aim to fill this gap by conducting a bibliometric analysis of 13,697 articles in the field of permafrost research from 1942 to 2021, collected from the Web of Science core collection database. The results indicate that permafrost research is a typically multi-author, multi-country, and multi-institution cooperative field, involved in many research fields. The cumulative number of publications has presented an exponential increase over the past 80 years, with an average annual growth rate of 10.40%. Since 2000, China has seen a rapid growth in the number of publications per year, surpassing the USA in 2016 and leading in the years since then. In addition, the authors from China have great contributions in publications, and there is good room for permafrost development in the future according to the authors' M-index ranking. After the analysis of authors' keywords, we found that, compared to the conventional methods, machine learning and interferometric synthetic aperture radar (InSAR) are new technological approaches introduced in recent years, and the Qinghai–Tibet Plateau has become a popular study area. The results presented here can help related researchers, scholars, and students in the field to better understand the past developments, current status, and future trends of permafrost research. Furthermore, this paper presents and expands the general process of the bibliometric method used in permafrost studies, which can provide researchers with new inspirations and improve discipline research approach. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

29. Modified cementitious materials incorporating Al2O3and SiO2nanoparticle reinforcements: An experimental investigation

Author

Li, Chunqing, Cao, Yapeng, Li, Guoyu, Liang, Qingguo, Wu, Xuyang, Wu, Gang, Wang, Fei, Du, Qingsong, Wang, Yapeng, Qi, Shunshun, Tang, Liyun, Yue, Jianwei, and Zhang, Hang

Abstract

This research presents the improvement effect and influence mechanism of nano-Al2O3(NA) and nano-SiO2(NS) on concrete performance from the macro and micro scales. The crucial parameter investigated in this research is the various concentrations of the nano-reinforcement 1, 2, and 3wt. % of cement, the results show that NA and NS can improve the compressive strength and resistance to chloride penetration (RCP) ability of concrete, the amount of 1 and 2wt. % exhibiting the best effect, especially in terms of compressive strength, which can be increased by more than 20%. As nanoscale particles, NA and NS can fill the capillary pores in concrete and can also promote the cement hydration to produce more C-S-H gel, thereby reducing the total porosity of concrete by about 2%, making its internal pores and cracks less and the microstructure denser. Based on the correlation analysis, the most important factors affecting the compressive strength and RCP ability of concrete were found, and the linear relationship equation between compressive strength and RCP ability was obtained.

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results