徐州三河尖矿深井高温热害机制研究

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摘要徐州三河尖矿是国内高温热害最严重的矿井之一，－700 m水平以下的岩温高达40 ℃以上，巷道气温达到33 ℃～34 ℃，其高地温异常机制已经引起专家学者们的高度关注。目前关于三河尖矿热害机制的研究主要集中在岩浆活动和地质构造2个方面，有关高温地下水对地温场影响的研究至今尚未报道。首先对三河尖矿21102工作面奥陶水突水机制进行分析，对高温奥陶水上涌引起地温场变化的规律进行数值模拟，在此基础上，对三河尖矿地温场进行区划分析，提出相应的降温措施。研究表明：(1) 三河尖矿高温奥陶水上涌对地温场产生重要影响，是该矿高温热害的主要原因之一；(2) 三河尖矿高温奥陶水的导水通道为孙氏店断层，补给水源来自滕县背斜轴部的奥陶系隐伏露头区域，补给端与涌出端的水头差高达795 m，为高温奥陶水的上涌提供了动力；(3) 当高温奥陶水沿破碎带上涌的过程中，引起地层温度不同程度升高，地层埋深越浅，地温升高程度越大，即升温指数与地层埋深呈负相关；(4) 将奥陶水上涌后的地温场划分为IIa(37 ℃～45 ℃)，IIb(45 ℃～50 ℃)，IIc(50 ℃～55 ℃)三类热害区。研究结果对于三河尖矿高温热害控制具有重要的理论意义和实用价值。

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关键词 ：采矿工程, 奥陶水, 热害机制, 地温场, 升温指数

Abstract：Sanhejian Coal Mine in Xuzhou is one of the mines in China which are seriously threatened by the high-temperature，with rock temperature of 40 ℃ and the roadway temperature of 33 ℃–34 ℃ below the elevation of －700 m. The heat-hazard mechanism of the mine is the key to research in controlling the thermal damage；however the research of the heat-hazard mechanism is focused on the geologic structure and the magmation，and the research of the mechanism about the temperature field influenced by the Ordovician water is very little. First，the mechanism of the upwelling of the Ordovician water at 21102 working face was analyzed. And then the effect of the upwelling of the Ordovician water on the geothermal field of Sanhejian Mine was discussed. At last，the geothermal field of the Sanhejian Mine effected by the hot Ordovician water was divided into three districts，following with the cooling measures. Some conclusions are drawn as follows. (1) The upwelling of the Ordovician water has a great effect on the geothermal field of the Sanhejian Mine；and it is a important heat-hazard mechanism of this mine. (2) The water passages is the Sunshidian fault，and the Ordovician water of Sanhejian Mine is supplied by the water from the axis department of Tengxian anticline，so the distance between the supplying area and the gushing area benefits the upwelling of the Ordovician water at the 21102 working face. (3) The earth temperature of every level upper aquifer rises obviously after the swarming of Ordovician water and a negative correlation between the temperature rising index and the depth is found. (4) The research areas are classified into three types，that is IIa(37 ℃–45 ℃)，IIb(45 ℃–50 ℃) and IIc(50 ℃–55 ℃). The results play a guiding role in managing the heat-hazard in Sanhejian Coal Mine.

Key words： mining engineering Ordovician water heat-hazard mechanism geothermal field temperature rising index

收稿日期: 2012-12-31

引用本文:

杨晓杰1，2，韩巧云1，2，田弋弘1，2，马骄1，2，李航1，2，李少华1，2，张东东3. 徐州三河尖矿深井高温热害机制研究[J]. 岩石力学与工程学报, 2013, 32(12): 2447-2454.
YANG Xiaojie1，2，HAN Qiaoyun1，2，TIAN Yihong1，2，MA Jiao1，2，LI Hang1，2，LI Shaohua1，2，ZHANG Dongdong3. MECHANISM OF HIGH-TEMPERATURE HEAT-HAZARD AT SANHEJIAN COAL MINE，XUZHOU. , 2013, 32(12): 2447-2454.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/I12/2447

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