煤田地质与勘探2016，Vol.44Issue(5)：37-41,5.DOI:10.3969/j.issn.1001-1986.2016.05.006
重庆永川煤矿煤岩热物性参数特征
Characteristics of coal and rock thermal properties in Yongchuan mine
摘要
Abstract
Coal and rock thermal physical parameters are basic data for mine cooling fire prevention and control Coal and rock density, specific heat, heat conductivity coefficient, thermal diffusivity, original temperature, temperature gradient in present mining area of Yongchuan coal mine were measured through in situ underground measurement and laboratory tests. Results of the tests show that: at the level –400 m of coal mine, the density, specific heat, coefficient of thermal conductivity and thermal diffusivity of coal samples are within the normal range; at the level –357 m to –438 m, the thermophysical parameters, such as the coal density, specific heat, coefficient of thermal conductivity, do not change with the elevation, at the level –400 m, the original temperature of coal and rock is about 35~36℃; below the zone of constant temperature in the mine, the geothermal gradient is 2.32℃/100 m abovethe level –400 m and 2.65℃/100 m belowthe level –400 m, tends to increase slightly, but still in the range of the normal geothermal gradient. Incombination with the geological exploration data, the measured value of the original temperature of coal and rock is smaller than the theoreti-cally calculated value, but the error is not more than 3%, so the precision meets the demands of engineering.关键词
热物性参数/原始岩温/地温梯度/测定Key words
thermophysical property/virgin rock temperature/temperature gradient/measurement分类
矿业与冶金引用本文复制引用
褚召祥..重庆永川煤矿煤岩热物性参数特征[J].煤田地质与勘探,2016,44(5):37-41,5.基金项目
国家科技支撑计划课题(2012BAK04B02)；中国煤炭科工集团创新基金重点资助项目(2011ZD001)@@@@National Key Technology Research and Development Program of the Ministry of Science and Technology of China (2012BAK04B02)；Major Program of Innovation Foundation of China Coal Technology & Engineering Group(2011ZD001) （2012BAK04B02）
