Advance Search
SUN Haitao, FU Junhui. Study on deformation characteristics of surface borehole in active coal mining area under repeated mining[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (6).
Citation: SUN Haitao, FU Junhui. Study on deformation characteristics of surface borehole in active coal mining area under repeated mining[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (6).

Study on deformation characteristics of surface borehole in active coal mining area under repeated mining

More Information
  • Available Online: April 02, 2023
  • Published Date: June 24, 2018
  • In order to solve the problem that broken rate of the surface borehole is very high,which caused by overburden movement of the stope,especially the effect of repeated mining,based on the analysis of the characteristics of the overlying strata movement in the stope,the similar model is established on the basis of the engineering environment under the condition of Stratified Mining.Through stratified excavation and continuous monitoring of the effect of shear slip and separation of the overlying strata on the surface borehole monitoring line,the deformation characteristics of the surface borehole under the influence of mining are obtained.Under the influence of repeated mining,the ground surface boreholes in the mining area show the repeated moving characteristics of "increase→decrease→increase →decrease" and after sub level mining,the shear slip of the surface borehole increases by 30.12% compared with the upper layer mining;the deformation of the abscission layer show the characteristics of the continuous increase of "increase,increase,increase and increase" and after the sub level mining,the ratio of tensile deformation and the thickness of the surface borehole are increased by 29.8%.At the same time,the protection idea of surface borehole body reinforcement design is put forward.
  • Related Articles

    [1]WANG Aiwen, FAN Dewei, PAN Yishan, DAI Lianpeng, XIAO Yonghui, XU Lianman, CHEN Jianqiang. Determination of three-level energy absorbing support parameters in rockburst roadway based on energy calculation[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(6): 72-81.
    [2]ZHANG Huaxing. Study on equivalent calculation method of surface subsidence in inclined coal seam mining[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(10).
    [3]XUE Bing, LIU Du, LUO Honghao, NIU Ran. Study on well logging calculation method of geochemical parameters of shale reservoir in eastern foot of Taihang Mountain[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(7).
    [4]WANG Liujun, DENG Yahong, SUN Ke, DUAN Ce. Summarization of study on calculation method of seismic earth pressure in retaining wall[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (8).
    [5]Yang Yuqin Mao Shanjun Yang Yang, . Design and application of of monitored and measured data visualized calculation system in coal mine based on cloud platform[J]. COAL SCIENCE AND TECHNOLOGY, 2017, (6).
    [6]LiLin. Calculation of coalbed methane reserves and economic evaluation of Lishu Coal Mine in Jixi Basin[J]. COAL SCIENCE AND TECHNOLOGY, 2017, (5).
    [7]Liu Dongqiao Wang Yang Hu Xiangxing Ren Fuqiang, . Calculation and test analysis on stress of surrounding rock in mine roadway with mine pressure bump occurred by dynamic load[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (9).
    [8]CAO Zu-bao LI Jian-wen WANG Xin-feng, . Study on method of mine water inrush for inverse calculation of hydrogeological parameters[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (5).
    [9]Analysis Calculation on Single Pipeline Freezing Temperature Field Under Non-Constant Condition of Pipe Wall Temperature[J]. COAL SCIENCE AND TECHNOLOGY, 2012, (3).
    [10]Calculation Analysis on Recovery Ratio of Fully Mechanized Top Coal Caving Mining Face[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (3).

Catalog

    Article views (889) PDF downloads (493) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return