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根据顶板岩层中自然γ射线穿过剩留煤层后其辐射强度逐渐衰减的特性 ,对采用自然γ射线方法检测剩留煤层厚度的理论和实验进行了研究 .建立了剩留煤层厚度与自然γ射线辐射强度衰减量的数学模型 ,通过在水峪煤矿采煤工作面的实测数据 ,证明了数学模型的正确性 .另外对自然γ射线辐射强度衰减量受辐射角度和顶板岩层厚度的影响也进行了较详细地讨论 .研究结果为采煤机摇臂调高传感装置的研究提供了基础
According to the characteristics that the natural γ rays gradually decay after passing through the remaining coal seams in the roof strata, the theory and experiment of detecting the thickness of the remaining coal seams by the natural gamma ray method are studied.The thickness of the remaining coal seams is established with the natural γ-ray radiation The intensity attenuation of the mathematical model, through the coal mining face in Shuiyu coal mine measured data to prove the correctness of the mathematical model.In addition to natural γ-ray attenuation is affected by the radiation angle and the impact of roof rock thickness is also more Discussed in detail.The results provide the basis for the research of shearer rocker raising sensing device