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以内蒙古气化采煤某试验场测氡数据为例,研究煤气化过程中土壤氡变化规律,反映煤气化燃烧状态。对土壤氡数据进行趋势面分析,以不同拟合次数建立氡趋势面方程,确定最佳趋势面,以氡剩余值圈定土壤氡异常。验证了该方法圈定的氡异常变化与气化进程燃烧区变化相一致。
Taking the data of radon measurement in a test field of gasification coal mining in Inner Mongolia as an example, the variation law of soil radon in coal gasification process is studied and the combustion status of coal gasification is reflected. Trend surface analysis of soil radon data to establish radon trend surface equation with different fitting times to determine the best trend surface radon residual value delineation of soil radon anomalies. It is verified that the variation of radon delineation determined by this method is consistent with the change of combustion zone in the gasification process.