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针对余吾煤业南翼轨道大巷底板挠曲褶皱变形问题,结合其变形形态、受力状态建立了底板力学模型,求出了发生挠曲失稳的临界载荷,并提出了补打锚索、锚杆,巷道两帮及底板注浆的防治对策。施工监测结果显示上述补强措施取得了有效成果。
According to the deformation and flexural deformation of the floor slab in Yuwei coal industry, the mechanics model of the floor was established and the critical load of flexural instability was obtained. Prevention Measures of Two Kinds of Roof Bolts, Roadways and Grouting. Construction monitoring results show that the above-mentioned reinforcement measures have achieved effective results.