摘要
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 .
Based on natural Gamma ray in rock attenuation characteristic passing through coal seam, this paper investigates detection of coal seam thickness, sets up mathematics relationship between coal seam thickness and amounts of radiation intensity attenuation. The accuracy of attenuation mathematic model is well verified by the experiments results of the prediction of coal seam thickness in Shuiyu Coal Mine, amd discusses in detail influence of top rock thickness and radiation angle on natural Gamma ray radiation intensity attenuation. The results can use design for shearer horizon control.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2002年第4期425-429,共5页
Journal of China Coal Society
基金
国家技术创新项目 (国经贸厅技 [1997] 3 2 7)
