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<p>The strata movement and mining pressure issues triggered by the goaf directly impact the safety production of mines and surface environmental protection. The control effect of ultra-high water material filling mining on the long-term stability of surrounding rock is significant. Using the 6th working face of Taoyi Coal Mine under Jizhong Energy Handan Mining Group as a case study, this research utilizes microseismic and stress monitoring methods to characterize and quantitatively evaluate the bearing effect of ultra-high water material open filling in large-scale mining operations. (1) The characteristics of overburden structural changes during large-scale mining were analyzed, revealing the evolution of the “coal wall-support-filling body” bearing structure and the surrounding rock control principles. (2) A spatiotemporal tracking analysis method for surrounding rock fracturing based on high-precision “stress-vibration” monitoring was proposed to quantitatively characterize the strata movement behavior in the filling mining working face. (3) By analyzing microseismic monitoring, coal-body-filling-body stress, and support work resistance data, the stress conditions and bearing effects of the “coal wall-support-filling body” structure were validated. Through multi-dimensional evaluation of the filling effect using monitoring data on the internal stresses of the coal body and filling body, as well as tunnel deformation and unsupported roof quantities, the results show that ultra-high water material open filling effectively controls the extent of surrounding rock fractures, reduces the impact of large-area mining activities, and performs well in steep mining faces. The proposed methods also provide scientific support for optimizing filling design and improving mining safety.</p>

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Research on Strata Movement and Mining Pressure Monitoring Characteristics in Longwall Bag-type Filling Mining with Ultra-high Water Materials

  • 期刊论文

  • 发表日期：

    2026年1月28日

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  • Yi Liu,
  • Quanjie Zhu,
  • Yichao Zhang,
  • Quande Wei,
  • Guangyu Yang,
  • Donghseng Jiang,
  • Xiaohui Liu,
  • Yingnan Hao

摘要

The strata movement and mining pressure issues triggered by the goaf directly impact the safety production of mines and surface environmental protection. The control effect of ultra-high water material filling mining on the long-term stability of surrounding rock is significant. Using the 6th working face of Taoyi Coal Mine under Jizhong Energy Handan Mining Group as a case study, this research utilizes microseismic and stress monitoring methods to characterize and quantitatively evaluate the bearing effect of ultra-high water material open filling in large-scale mining operations. (1) The characteristics of overburden structural changes during large-scale mining were analyzed, revealing the evolution of the “coal wall-support-filling body” bearing structure and the surrounding rock control principles. (2) A spatiotemporal tracking analysis method for surrounding rock fracturing based on high-precision “stress-vibration” monitoring was proposed to quantitatively characterize the strata movement behavior in the filling mining working face. (3) By analyzing microseismic monitoring, coal-body-filling-body stress, and support work resistance data, the stress conditions and bearing effects of the “coal wall-support-filling body” structure were validated. Through multi-dimensional evaluation of the filling effect using monitoring data on the internal stresses of the coal body and filling body, as well as tunnel deformation and unsupported roof quantities, the results show that ultra-high water material open filling effectively controls the extent of surrounding rock fractures, reduces the impact of large-area mining activities, and performs well in steep mining faces. The proposed methods also provide scientific support for optimizing filling design and improving mining safety.