A film stress measurement system applicable for hyperbaric environment and its application in coal and gas outburst simulation test

• Autorzy: Liu Zhong-Zhong , Wang Han-Peng , Yuan Liang , Wang Wei , Zhang Chong , Xue Yang

Identyfikatory

DOI

10.24425/mms.2021.135991

• Języki publikacji: EN

Abstrakty

EN

A film stress measurement system applicable for hyperbaric environment was developed to characterize stress evolution in a physical simulation test of a gas-solid coupling geological disaster. It consists of flexible film pressure sensors, a signal conversion module, and a highly-integrated acquisition box which can perform synchronous and rapid acquisition of 1 kHz test data. Meanwhile, we adopted a feasible sealing technology and protection method to improve the survival rate of the sensors and the success rate of the test, which can ensure the accuracy of the test results. The stress measurement system performed well in a large-scale simulation test of coal and gas outburst that reproduced the outburst in the laboratory. The stress evolution of surrounding rock in front of the heading is completely recorded in a successful simulation of the outburst which is consistent with the previous empirical and theoretical analysis. The experiment verifies the feasibility of the stress measurement system as well as the sealing technology, laying a foundation for the physical simulation test of gas-solid coupled geological disasters.

Słowa kluczowe

EN

stress measurement system; sealing technology; hyperbaric environment; coal and gas outburst; gas-solid coupling

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2021
• Tom: Vol. 28, nr 1
• Strony: 73--88
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Liu Zhong-Zhong

• Shandong University, Geotechnical and Structural Engineering Research Centre, Jinan 250061, Shandong, China
• Shandong University, School of Qilu Transportation, Jinan 250061, Shandong, China

autor

Wang Han-Peng

• Shandong University, Geotechnical and Structural Engineering Research Centre, Jinan 250061, Shandong, China
• Shandong University, School of Qilu Transportation, Jinan 250061, Shandong, China

autor

Yuan Liang

• Anhui University of Science and Technology, Huainan 232001, Anhui, China

autor

Wang Wei

• Shandong University, Geotechnical and Structural Engineering Research Centre, Jinan 250061, Shandong, China
• Shandong University, School of Qilu Transportation, Jinan 250061, Shandong, China

autor

Zhang Chong

• Shandong University, Geotechnical and Structural Engineering Research Centre, Jinan 250061, Shandong, China
• Shandong University, School of Qilu Transportation, Jinan 250061, Shandong, China

autor

Xue Yang

• Shandong University, Geotechnical and Structural Engineering Research Centre, Jinan 250061, Shandong, China
• Shandong University, School of Qilu Transportation, Jinan 250061, Shandong, China

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Uwagi

1. This research was funded by the National Natural Science Foundation of China (51427804), Natural Science Foundation of the Shandong Province (ZR2017MEE023,2019GSF111036).

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).