煤炭开采对窟野河河川径流变化影响及模拟研究

发布时间：2018-06-30 07:06

  本文选题：窟野河 + 煤炭开采　； 参考：《河南理工大学》2014年硕士论文

【摘要】：随着全国范围内煤炭的大规模开采,煤炭开采诱发的水环境问题相当严重,其中河道径流减少甚至断流问题尤为突出,已制约到区域生态环境建设和经济的可持续发展。窟野河是黄河中游一级支流,近年来随着煤炭开采量的大幅增加,流域径流明显减少,水资源供需矛盾日益突出。研究煤炭开采对径流的影响,对合理调节矿区煤炭资源开采、水资源以及生态环境的保护间的关系具有重要意义。本文以温家川站和王道恒塔站为代表水文站,分析径流年内和年际变化。温家川站和王道恒塔站径流的年际变化均较大,1960-2010年来的径流量总体上呈波动下降趋势。而年内变化特征是径流最大的月份都在8月份;径流最小的月份都在1月份,连续最大3个月径流量出现在7-9月,连续最小3个月径流量出现在12月-翌年2月。为研究温家川和王道恒塔水文站径流不断减少的原因,定性分析窟野河流域自然因素和人类活动对径流的影响。自然因素和人类活动对径流量均有一定的影响。其中煤炭开采量的增加,也是导致径流量的减少的原因。为定量研究煤炭开采对径流量影响,在对径流和影响因素分析的基础上,通过黄河水量平衡模型模拟煤矿开采对径流的影响。1999年至2010年阶段对径流影响的平均值达到2.92×108m3,在1999-2010年期间窟野河流域煤炭开采量平均大约为5138×104t,那么在窟野河流域吨煤开采对径流的影响大约为5.68m3。由此,煤矿开采是窟野河流域径流减少的主要原因之一。研究煤炭开采对径流变化的影响,为今后社会生产提供了一定的基础。
[Abstract]:With the large-scale exploitation of coal in the whole country, the water environment problem induced by coal mining is quite serious, especially the problem of river runoff reduction or even cut off, which has restricted the construction of regional ecological environment and the sustainable development of economy. The Grotto River is a first grade tributary in the middle reaches of the Yellow River. In recent years, with the increase of coal exploitation, the runoff of the river basin is obviously reduced, and the contradiction between supply and demand of water resources is more and more prominent. It is of great significance to study the influence of coal mining on runoff and to regulate the relationship among coal resources exploitation, water resources and ecological environment protection. This paper takes Wenjiachuan Station and Wangdahengta Station as representative hydrologic stations to analyze the annual and interannual variation of runoff. The interannual variation of runoff in Wenjiachuan station and Wangdaohengta station is larger than that in 1960-2010. The runoff of Wenjiachuan station and Wangdaohengta station has fluctuated and decreased in the past 1960-2010. The feature of annual runoff variation is that the largest month of runoff is in August, the smallest month of runoff is in January, the maximum runoff of 3 consecutive months appears in July-September, and the minimum monthly runoff of three consecutive months appears in December to February of the following year. In order to study the causes of the continuous decrease of runoff in Wenjiachuan and Wangdaohengta hydrologic stations, the effects of natural factors and human activities on runoff in the Grottoes River Basin were qualitatively analyzed. Natural factors and human activities have a certain impact on runoff. The increase of coal mining is also the cause of the decrease of runoff. In order to quantitatively study the influence of coal mining on runoff, based on the analysis of runoff and influencing factors, The impact of coal mining on runoff was simulated by the Yellow River water balance model. The average value of the impact on runoff from 1999 to 2010 was 2.92 脳 10 ~ 8 m ~ 3, and the average coal mining capacity in the Grottoes River Basin was about 5138 脳 10 ~ 4 t during the period of 1999-2010, so in the Grottoes River Basin, the average coal yield was about 5138 脳 10 ~ (4) t. The effect of ton coal mining on runoff is about 5.68 m ~ 3. Therefore, coal mining is one of the main reasons for runoff reduction in the Grotto River Basin. The study of the influence of coal mining on runoff will provide a basis for future social production.
【学位授予单位】：河南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P333
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本文编号：2085435