Results 51 to 60 of about 753 (208)
Model drawing of gob-side entry retaining goaf retention in Qipanjing Mine.
, 2022 Model drawing of gob-side entry retaining goaf retention in Qipanjing Mine.
Dongjie Hu (12666891) +1 more
core +1 more source
Determination of cyclic filling length in gob-side entry retained with roadside filling and its application [PDF]
Shock and Vibration, 2020 Abstract Gob-side entry retained with roadside filling (GER-RF) plays a key role in achieving coal mining without pillar and improving the coal resource recovery rate. Since there are few reports on the cyclic filling length of GER-RF, a method based on the stress difference method is proposed to determine the cyclic filling length of GER-RF ...
Zizheng Zhang +5 more
openaire +2 more sources
, 2022 oftadaDynamic distribution and prevention of spontaneous combustion in roof cutting gob-side entry retaining goaf of the first mining face
DJ Hu (11950898)
core +1 more source
The Floor Heave Mechanism and Control Technology of Gob-Side Entry Retaining of Soft Rock Floor
, 2023 Extensive soft-rock floor heave in gob-side entry retaining considerably restricts the efficient and sustainable production of the mine. The mechanical capacities of roadway roof and floor strata are discussed through laboratory tests by taking the N2301
Lei Hu +7 more
core +1 more source
矿业科学学报, 2019 In order to smoothly implement gob-side entry retaining and mining without coal pillar in 3207 working face of Nanyang Coal Mine,Shanxi Province,this paper proposes to carry out advanced deep-hole blasting pre-splitting roof near gob side supporting wall.
Hu Tao +6 more
doaj +1 more source
Asymmetric Damage Mechanisms and Prevention Technology in Large-Section Gob-Side Entry Retaining
, 2022 Based on the deformation and damage characteristics of the surrounding rock in a large-section gob-side entry retaining and combined with field observations and an analysis of the dominant factors, an overall deformation control plan is formulated.
Wenjun Ju +4 more
core +1 more source
Advances in Civil Engineering, 2019 Gob-side entry retaining is an environmentally friendly nonpillar mining technology with high efficiency and safety. With the continuous exploration of the gob-side entry retained by filling (GERF) with roadside supports, the GERF has enabled nonpillar ...
Enze Zhen +3 more
doaj +1 more source
Meikuang Anquan, 2022 In order to improve the recovery rate of coal resources in general, Chengzhuang Coal Mine has carried out and implemented the technology of gob-side entry retaining in 5309 large height mining face.
SI Xiaopeng, ZHOU Changtai
doaj +1 more source
Application of High‐Strength Lightweight Concrete in Gob‐Side Entry Retaining in Inclined Coal Seam [PDF]
Advances in Materials Science and Engineering, 2020 Gob‐side entry retaining (GSER) is a popular no‐pillar mining technology that can increase coal recovery rate. We propose the application of high‐strength lightweight (HSLW) concrete to construct the gob‐side support body (GSSB) in NO. 411 inclined working face of Jingang Coal Mine. Firstly, the mechanical model of retained roadway was established, and
Daoyong Zhu +3 more
openaire +2 more sources
Meitan kexue jishuGob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency.
Chaochao YAN +5 more
doaj +1 more source