Applicable Conditions of Room-and-Pillar Mining Goaf Treatment Methods under a Traffic Load

被引:4
|
作者
Zu, Fajin [1 ,2 ]
Du, Chao [1 ]
Han, Chunpeng [1 ]
Xu, Lanyu [2 ]
Peng, Qiuying [2 ]
机构
[1] Northeast Forestry Univ, Sch Civil Engn, Harbin 150040, Peoples R China
[2] Heilongjiang Prov Highway Survey & Design Inst, Harbin 150080, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 03期
关键词
traffic load; room-and-pillar mining goaf; goaf treatment; orthogonal test;
D O I
10.3390/app13032024
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The disturbance depth of traffic load has a direct impact on the stability of a room-and-pillar mining goaf. To quantitatively calculate the relationship between the traffic load disturbance depth and influencing factors, 49 groups of horizontal combinations of different influencing parameters are designed in this study, based on the orthogonal experimental design method. Midas GTS is used to simulate and obtain the corresponding traffic load disturbance depth data. A multivariate linear regression analysis of the traffic load disturbance depth is conducted, and a regression formula for calculating the traffic load disturbance depth is established. According to the traffic load disturbance depth, goaf depth, and the stability of the roof, coal pillar, and base plate under traffic load conditions, a judgment flow of the room-and-pillar mining goaf treatment method under traffic load conditions is established, and it is applied to the reconstruction and expansion project of the Jixi section of the Dan-A national highway. The results show that a geogrid can be used for treatment purposes when the traffic load disturbance depth is 1.5 times lower than the depth of the room-and-pillar mining goaf, or when the traffic load disturbance depth is 1.5 times greater than the depth of the room-and-pillar mining goaf but the roof, coal pillar, and base plate are stable. Additionally, grouting is needed for treatment in other cases. The results of this study can provide a scientific basis for the selection of treatment methods for room-and-pillar mining goafs underlying highways in the future. The results are of great significance in the field of engineering for the safety measures concerning highway room-and-pillar mining goafs.
引用
收藏
页数:17
相关论文
共 50 条
  • [41] Study of rock displacement with the help of equivalent materials using room-and-pillar mining method
    Buzylo, V.
    Savelieva, T.
    Saveliev, V.
    GEOMECHANICAL PROCESSES DURING UNDERGROUND MINING, 2012, : 29 - 34
  • [42] Application of GPRS Technology in Monitoring of Overlying Rock in Old Goaf by Room and Pillar Mining
    Bi Zhongwei
    Li Shaogang
    Li Wen
    Zhang Bin
    PROCEEDINGS OF 2015 INTERNATIONAL SYMPOSIUM - SAFETY AND HIGH EFFICIENCY MINING IN COAL, 2015, : 255 - 262
  • [43] Mechanism of disaster induced by dynamic instability of coal pillar group in room-and-pillar mining of shallow and close coal seams
    Zhu W.
    Xu J.
    Chen L.
    Li Z.
    Liu W.
    Meitan Xuebao/Journal of the China Coal Society, 2019, 44 (02): : 358 - 366
  • [44] SUBSTANTIATION OF STRENGTH OF THE FILLING MASS BY TAKING A BLAST EFFECT INTO ACCOUNT FOR THE ROOM-AND-PILLAR METHODS
    Voronov, E. T.
    Tyupin, V. N.
    JOURNAL OF MINING INSTITUTE, 2018, 229 : 22 - 26
  • [45] Assessing Pillar Design Strategies in Hard Rock Room-and-Pillar Mining: A Review and Case Studies from the Great Dyke of Zimbabwe
    Dzimunya, Nevaid
    Fujii, Yoshiaki
    Li, Zheng
    Amagu Amagu, Clement
    MINING METALLURGY & EXPLORATION, 2025, : 685 - 704
  • [46] Floor Behavior in a Two-Stage Room-and-Pillar System under the Conditions of the Legnica-Glogow Copper District.
    Planeta, Stefan
    1978, 34 (10): : 434 - 440
  • [47] AUTOMATION TRENDS IN ROOM-AND-PILLAR CONTINUOUS-MINING SYSTEMS IN THE U. S. A.
    Chugh, Y.P.
    Parkinson, H.E.
    Journal of The South African Institute of Mining and Metallurgy, 1981, 81 (03): : 57 - 65
  • [48] Geomechanical Analysis of the Main Roof Deformation in Room-and-Pillar Ore Mining Systems in Relation to Real Induced Seismicity
    Chlebowski, Dariusz
    Burtan, Zbigniew
    APPLIED SCIENCES-BASEL, 2024, 14 (13):
  • [49] Comparative stability analyses of traditional and selective room-and-pillar mining techniques for sub-horizontal tungsten veins
    Vidal Félix Navarro Torres
    Carlos Dinis da Gama
    Matilde Costa e Silva
    Paula Falco Neves
    International Journal of Minerals Metallurgy and Materials, 2011, 18 (01) : 1 - 8
  • [50] Comparative stability analyses of traditional and selective room-and-pillar mining techniques for sub-horizontal tungsten veins
    Navarro Torres, Vidal Felix
    da Gama, Carlos Dinis
    Costa e Silva, Matilde
    Neves, Paula Falcao
    Xie, Qiang
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2011, 18 (01) : 1 - 8