Výsledky vyhledávání - "Kong Dezhong"

Akademický článek

Autor: MEI Fuxing, SHANG Yuqi, KONG Dezhong, ZHANG Pengfei, ZHANG Lin, WU Shixiong

Publikováno v: 矿业科学学报, Vol 9, Iss 4, Pp 519-528 (2024)

This study investigates the fracture evolution patterns of overlying strata under the mining conditions of close-distance coal seams.Taking the 9305 working face of Anshun Coal Mine as the research object, this study probed into the evolution of disp

Externí odkaz: https://doaj.org/article/a5d365d7e93c48af97fdae2d1038f4fe

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Akademický článek

Optimization of drilling parameters for coal seam gas extraction considering fluid–solid coupling and field application

Autor: Wang Yang, Xu Mengtang, Kong Dezhong, Shang Yuqi, Li Fei

Publikováno v: Energy Science & Engineering, Vol 12, Iss 3, Pp 657-669 (2024)

Abstract Affect gas extraction efficiency to find out the optimum well location parameters, based on the gray correlation analysis of borehole diameter, borehole spacing, and extraction pressure three boreholes parameters that influence efficiency of

Externí odkaz: https://doaj.org/article/3c2d98e85d4b4114b29ba10691c93ca2

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Akademický článek

Research on key technologies of coal mine intelligent excavation

Autor: LI Fei, ZHANG Lin, SHANG Yuqi, KONG Dezhong, WANG Yuliang, CHEN Long, ZHANG Zhiwei

Publikováno v: Gong-kuang zidonghua, Vol 49, Iss 4, Pp 33-41 (2023)

This paper introduces the research results of the main coal mine roadway excavation technologies in recent years. The technologies include cantilever roadheader comprehensive excavation technology, continuous shearer tunneling technology, and integra

Externí odkaz: https://doaj.org/article/7674d023704e4d81afcbaa4f33d27095

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Akademický článek

Research status and prospect of water inrush mechanism and prevention of coal seam floor in China

Autor: LI Fei, KONG Dezhong, WANG Yang, WANG Yucheng

Publikováno v: Meikuang Anquan, Vol 53, Iss 11, Pp 200-206 (2022)

In view of the problem of water inrush from coal seam floor in China, the application effect of water inrush prevention measures of coal seam floor in recent years, such as the research on the mechanism of water inrush from coal seam floor under vari

Externí odkaz: https://doaj.org/article/f44a141ff9fe4109826f6584726dc431

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Akademický článek

Analysis and prevention of influencing factors of face end roof falling under repeated mining of short-distance coal seam group

Autor: LI Qiang, WU Guiyi, KONG Dezhong

Publikováno v: Gong-kuang zidonghua, Vol 47, Iss 8, Pp 41-49 (2021)

The existing researches on face end roof falling are mostly focused on single coal seam, while the stability of the face end roof under short-distance coal seam group mining is different from that of a single coal seam. In the process of short-distan

Externí odkaz: https://doaj.org/article/a70e60f1c62a4cbd9094ab1f1a557f4d

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Akademický článek

The breaking characteristics of thick-hard roof and determination of support capacity in fully mechanized caving face

Autor: Cheng Zhanbo, Kong Dezhong, Yang Jinghu

Publikováno v: 矿业科学学报, Vol 1, Iss 2, Pp 172-180 (2016)

It is difficult to determine the first roof weighting interval of hard roof on fully mechanized caving face.Based on the working face 8301 of Dongzhouyao coal mine, a model of two edges fixed in thick and hard roof was established by using energy met

Externí odkaz: https://doaj.org/article/330d880f615b4a97a755b48e369b7526

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