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    Application of Presplitting Blasting Technology in Surrounding Rock Control of Gob-Side Entry Retaining with Hard Roof: A Case Study by Shuang Gong, Yi Tan, Yunpeng Liu, Dan Zhu, Yang Yu

    Published 2021-01-01
    “…The drilling peep results show that the implementation effect of presplitting blasting technology is good. The results showed that deep holes and shallow holes with small spacing and parallel to each other shall be arranged on the planned seam line. …”
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    Article
  6. 86

    Deformation and Failure Evolution Law and Support Optimization of Gob-Side Entry in Weakly Cemented Soft Rock under the Influence of Fault by Chengfu Ma, Fenghai Yu, Kai Zhou, Xuerui Yang, Bo Sun, Xinyu Yao, Yani Chi, Yuanzhi Zhang

    Published 2024-01-01
    “…Under the condition of weakly cemented soft rock in Western China, the surrounding rock deformation of gob-side entry is obvious, especially under the influence of fault, and the problem of surrounding rock control becomes increasingly prominent. …”
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    Article
  7. 87

    Research on the Settlement Regulation and Stability of Large Building Foundation over Gobs: A Case Study in the Xiangcheng Coal Mine, China by Wenyan Guo, Bingnan Hu, Junying Zhang, Qingtong Chen, Xinguo Jia, Jianghua Li

    Published 2021-01-01
    “…However, a large high-rise building (100 m × 80 m × 100 m) was planned to be built above gob areas in the Xiangcheng Mine subsidence area. …”
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    Article
  8. 88

    Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China by Wenyan Guo, Shiqi Liu, Bingnan Hu, Yanchun Xu, Yaqi Luo

    Published 2018-01-01
    “…In the past, few special measures were required for the foundations of small buildings above old gob areas. But a plan was created to construct a large office building 100 m in length, 90 m in width, and 100 m in height, above old gob areas in the Huaibei subsidence area. …”
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    Article
  9. 89

    Research on the Reasonable Coal Pillar Width and Surrounding Rock Supporting Optimization of Gob-Side Entry under Inclined Seam Condition by Li-li Jiang, Zeng-qiang Yang, Gang-wei Li

    Published 2021-01-01
    “…In order to study the optimal coal pillar width and surrounding rock control mechanism of gob-side entry under inclined seam condition, the 130205 return air entry adjacent to 130203 gob in Yangchangwan No. 1 well is taken as a typical engineering background. …”
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    Article
  10. 90

    An Experimental Investigation on the Mechanical Properties of Gangue Concrete as a Roadside Support Body Material for Backfilling Gob-Side Entry Retaining by Peng Gong, Zhanguo Ma, Xiaoyan Ni, Ray Ruichong Zhang

    Published 2018-01-01
    “…Development of a safe and economical roadside support body (RSB) material is the key to successful backfilling gob-side entry retaining (GER). By means of laboratory tests, this paper studied the effects of the water-cement ratio, aggregate content, and age on the contractibility and resistance increasing speed, compressive strength, and postpeak carrying capacity of the concrete with gangues as an aggregate. …”
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    Article
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    Three-Dimensional Physical Simulation and Control Technology of Roof Movement Characteristics in Non-Pillar Gob-Side Entry Retaining by Roof Cutting by Xinzhu Hua, Guanfeng Chang, Xiao Liu, Bingjun Sun, Sen Yang, Enqian Wang, Chen Li

    Published 2021-01-01
    “…An overlying rock structure plays a key role in controlling the roof deformation of nonpillar gob-side entry retaining by roof cutting. On the bases of the actual geological conditions of II 632 Haulage Roadway at the Hengyuan coal mine, a similar three-dimensional simulation experiment of roof precutting is conducted. …”
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    Article
  14. 94
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    Failure Mechanism and Control Technology of Thick and Soft Coal Fully Mechanized Caving Roadway under Double Gobs in Close Coal Seams by Shengrong Xie, Xiaoyu Wu, Dongdong Chen, Yaohui Sun, En Wang, Xiaowei Wu, Xiaobo Duan, Zaisheng Jiang, Pengyu Qi, Songhao Shi

    Published 2020-01-01
    “…The surrounding rock of the roadway under double gobs in the lower coal seams is partially damaged by the mining of the upper coal seam and the stress superimposition of the stepped coal pillars. …”
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    Article
  16. 96

    Method for Determining Spontaneous Combustion Risk in Roof Cutting Gob-Side Entry Retaining U + L Ventilation Goaf for Mining Safety by Zongxiang Li, Dongjie Hu, Yu Liu, Yuhang Li, Chuntong Miao

    Published 2022-01-01
    “…It is difficult to accurately determine the risk of spontaneous combustion in the U + L ventilation goaf of the first mining face when using the method of roof cutting gob-side entry retaining (RCGSER). To address this problem, the I2101 working face of Qipanjing Mine was considered as the research object in this study. …”
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    Stability Analysis and Monitoring Method for the Key Block Structure of the Basic Roof of Noncoal Pillar Mining with Automatically Formed Gob-Side Entry by Jianning Liu, Manchao He, Yajun Wang, Ruifeng Huang, Jun Yang, Xichun Tian, Can Ming, Shan Guo

    Published 2019-01-01
    “…The study fully considered the differences in the gob roof caving on the roof-cutting-line side, and the range of rotation angles to maintain a stable key block was determined. …”
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  20. 100

    Damage symptoms, development, and reproductive performance of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) on fodder maize and cob by Hend O. Mohamed, Hassan F. Dahi, Azza A. Awad, Walaa E. Gamil, Bassam F. Fahmy

    Published 2023-03-01
    “…The results exhibited that the FAW larvae were able to feed on and infest both fodder maize and corn cobs, causing significant damage particularly to the cobs making them unsuitable for marketing and human consumption. …”
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    Article