Stability of multi-dimensional system of parallelogram support in pseudo-inclined longwall fully mechanized mining face of steeply dipping coal seam

• Autorzy: Wang Tong , Yang Ke , Wu Yongping , Xie Panshi , Chi Xiaolou

Identyfikatory

DOI

10.24425/ams.2025.156293

• Języki publikacji: EN

Abstrakty

EN

The key to safe and efficient mining of pseudo-inclined working face of steeply dipping coal seam is the stability control of the ‘support–surrounding rock’ system. Based on the comprehensive determination of the load characteristics of the support in the working face, the overall stability and internal component load characteristics of the parallelogram hydraulic support under the influence of different factors are analyzed. The results show that: (1) The working resistance of the column gradually decreases with the increase of the angle of seam; the working resistance of the balance jack, and the force of the front and back link all increase with the increase of the angle of seam. (2) The working resistance of the column and the working resistance of the balance jack increase, and the inclined and strike components of the constraint force of the hinge point of the top beam–shield beam change greatly. The top beam of the support is affected by the eccentric load, which affects the stability of the support and is prone to falling and sliding. (3) The parallelogram support also reaches the maximum stress at the connection between the column and the top beam, and the stress of the shield beam is relatively small.

Słowa kluczowe

EN

stability analysis; steeply dipping coal seam; pseudo-inclined working face; parallelogram support; multi-dimensional systems; multi-objective system

PL

analiza stateczności; pokład węgla; podpora górnicza

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2025
• Tom: Vol. 70, no. 3
• Strony: 423--452
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Wang Tong

• Anhui University of Science and Technology, School of Mining Engineering, Huainan, 232001, China
• Anhui University of Science and Technology, State Key Laboratory of Mine Response and Disaster Prevention and Control in Deep Coal Mines, Huainan, 232001, China

• https://orcid.org/0000-0001-8413-6826

autor

Yang Ke

• Anhui University of Science and Technology, School of Mining Engineering, Huainan, 232001, China
• Anhui University of Science and Technology, State Key Laboratory of Mine Response and Disaster Prevention and Control in Deep Coal Mines, Huainan, 232001, China

autor

Wu Yongping

• Xi’an University of Science and Technology, School of Energy Engineering, Xi’an 710054, China

autor

Xie Panshi

• Xi’an University of Science and Technology, School of Energy Engineering, Xi’an 710054, China

autor

Chi Xiaolou

• Anhui University of Science and Technology, School of Mining Engineering, Huainan, 232001, China
• Anhui University of Science and Technology, State Key Laboratory of Mine Response and Disaster Prevention and Control in Deep Coal Mines, Huainan, 232001, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)