新疆地下煤火风险分布格局探析  

Spatial analysis of risk for underground coal fire in Xinjiang,China

作　　者：武建军[1,2] 刘晓晨[1,2] 蒋卫国[1,2] 顾磊[3] 蔡忠勇 

机构地区：[1]北京师范大学环境演变与自然灾害教育部重点实验室,北京100875 [2]北京师范大学民政部/教育部减灾与应急管理研究院,北京100875 [3]首都师范大学资源环境与旅游学院,北京100048 [4]新疆煤田灭火工程局,新疆乌鲁木齐830000

出　　处：《煤炭学报》2010年第7期1147-1154,共8页Journal of China Coal Society

基　　金：国际科技合作重点项目(2007DFA90500)

摘　　要：在分析地下煤火燃烧的影响因素的基础上,从煤的自燃倾向性、煤层与氧气接触以及诱发煤火燃烧3个方面遴选指标建立了煤火风险评估指标体系。以1 km×1 km栅格为评价单元,集成了基于GIS空间分析的新疆煤火风险评估数据集,并运用区域地下煤火风险评估方法进行风险分析与评估。结果表明:新疆地下煤火风险的总体分布趋势是中部极高,南疆偏高,而西北部偏低;各个含煤区中,吐哈与准南、乌恰含煤区煤火风险等级较高,南疆的西昆仑与阿尔金含煤区次之,西北部的伊犁与准北含煤区的地下煤火风险则较低。精度验证表明,评估精度达80%以上,可以为新疆地下煤火监测与煤火灭火策略的制定提供科学依据。Three elements of combustion are the coal with self-ignition orientation,contacting with oxygen,and the external inducement.According to this,the evaluation indices were selected according to local condition and the index system for underground coal fire risk evaluation was established.The dataset of coal fire risk in Xinjiang were developed with the resolution of 1 km × 1 km,the regional risk assessment methodology of underground coal fire was applied here.Evaluation results show that the coal fire risk is extremely high in the middle region,high in the south and lower in northwest.Overall,risk level in Tuha,Zhunnan and Wuqia coalfield are general higher,it takes second place in West Kunlun and Aerjing coalfield in the southern region,while risk level in Yili and Zhunbei coalfield in the northwest is lower.Accuracy evaluation shows that the precision can be above 80%.The satisfactory results can be provided as scientific basis for monitoring and extinguishing strategy formulation of underground coal fire in Xinjiang,China.

关 键 词：新疆煤火 煤火风险 指标体系 评估模型 

分 类 号：TD752[矿业工程—矿井通风与安全]