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煤炭開采對窟野河河川徑流變化影響及模擬研究

發(fā)布時間:2018-06-30 07:06

  本文選題:窟野河 + 煤炭開采; 參考:《河南理工大學(xué)》2014年碩士論文


【摘要】:隨著全國范圍內(nèi)煤炭的大規(guī)模開采,煤炭開采誘發(fā)的水環(huán)境問題相當(dāng)嚴重,其中河道徑流減少甚至斷流問題尤為突出,已制約到區(qū)域生態(tài)環(huán)境建設(shè)和經(jīng)濟的可持續(xù)發(fā)展?咭昂邮屈S河中游一級支流,近年來隨著煤炭開采量的大幅增加,流域徑流明顯減少,水資源供需矛盾日益突出。研究煤炭開采對徑流的影響,對合理調(diào)節(jié)礦區(qū)煤炭資源開采、水資源以及生態(tài)環(huán)境的保護間的關(guān)系具有重要意義。本文以溫家川站和王道恒塔站為代表水文站,分析徑流年內(nèi)和年際變化。溫家川站和王道恒塔站徑流的年際變化均較大,1960-2010年來的徑流量總體上呈波動下降趨勢。而年內(nèi)變化特征是徑流最大的月份都在8月份;徑流最小的月份都在1月份,連續(xù)最大3個月徑流量出現(xiàn)在7-9月,連續(xù)最小3個月徑流量出現(xiàn)在12月-翌年2月。為研究溫家川和王道恒塔水文站徑流不斷減少的原因,定性分析窟野河流域自然因素和人類活動對徑流的影響。自然因素和人類活動對徑流量均有一定的影響。其中煤炭開采量的增加,也是導(dǎo)致徑流量的減少的原因。為定量研究煤炭開采對徑流量影響,在對徑流和影響因素分析的基礎(chǔ)上,通過黃河水量平衡模型模擬煤礦開采對徑流的影響。1999年至2010年階段對徑流影響的平均值達到2.92×108m3,在1999-2010年期間窟野河流域煤炭開采量平均大約為5138×104t,那么在窟野河流域噸煤開采對徑流的影響大約為5.68m3。由此,煤礦開采是窟野河流域徑流減少的主要原因之一。研究煤炭開采對徑流變化的影響,為今后社會生產(chǎn)提供了一定的基礎(chǔ)。
[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.
【學(xué)位授予單位】:河南理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:P333


本文編號:2085435

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