The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Jun. 16, 2021
North China Institute of Science and Technology, Beijing, CN;
Chongqing University, Chongqing, CN;
Liang Chen, Beijing, CN;
Quanle Zou, Zhenping County, CN;
Zhiheng Cheng, Beijing, CN;
Dahe Yan, Changtu County, CN;
Jun Zhang, Beijing, CN;
Han Liu, Wuhu, CN;
Meichen Li, Jiaozuo, CN;
Xiaofeng Xia, Weifang, CN;
Yun Lu, Jinan, CN;
North China Institute Of Science And Technology, Beijing, CN;
Chongqing University, Chongqing, CN;
Abstract
Coal rock three-dimensional strain field visual system and method are provided under mining influence. The system includes a stress condition simulation system and a strain monitoring system. The stress condition simulation system includes a similar simulation experiment rack, a loading system and a circular slideway. The method includes preparing a 3D printing wire, printing a strain visual similar model, simulating a stratum dip angle and a gas-containing condition, applying stress fields, recording a cracking and dyeing condition of microcapsules inside the model, and the like. The system can realize tracing the generation and development of internal cracks in simulation models with complex geological conditions, and tracing the three-dimensional movement of internal ink dots to draw four-dimensional images of displacement fields.