Failure characteristics of W strap in coal mine support

• Autorzy: Feng Xiaowei , Xue Fei , Feng Xiaotian , Zhao Tongyang

Identyfikatory

DOI

10.24425/ams.2022.141459

• Języki publikacji: EN

Abstrakty

EN

W strap is a crucial surface support component for underground coal mine roadways. In this study, the failure characteristics of the W strap in the field are discussed, and the loading characteristics of the strap and the faceplate are numerically and experimentally analysed. Afterwards, a loading apparatus capable of reappearing the loading environment of the strap in the field is fabricated. This loading device, combined support systems consisting of a bolt, faceplate and strap is tested under different simulated strata conditions. Failure patterns of the strap are evaluated by the 3D scanning method, and proper selection of a faceplate is explored. Results indicate that a domed faceplate can achieve a favourable supporting effect on strata, and thus it is favoured compared with a square domed faceplate. In addition, rock cavity and rock integrity beneath the strap are essential factors determining the servicing life of the overall supporting system.

Słowa kluczowe

EN

field observation; laboratory tests; coal mine support; failure characteristics

PL

kopalnia węgla; test laboratoryjny; taśmociąg górniczy

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2022
• Tom: Vol. 67, no. 2
• Strony: 289--302
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wykr.

Twórcy

autor

Feng Xiaowei

• China University of Mining and Technology, China

• https://orcid.org/0000-0002-9348-9874

autor

Xue Fei

• Shaoxing University, Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, China

• https://orcid.org/0000-0002-2305-9334

autor

Feng Xiaotian

• Xi’an University of Architecture and Technology, Politecnico di Milano, China

• https://orcid.org/0000-0003-4893-2942

autor

Zhao Tongyang

• Shaoxing University, Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, China

• https://orcid.org/0000-0002-1027-3913

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)