【摘要】：水土流失災(zāi)害是我國嚴(yán)重的地質(zhì)災(zāi)害之一,嚴(yán)重威脅經(jīng)濟建設(shè)與人民生命財產(chǎn)安全,急需治理。金堆城北部排土場由于接受礦區(qū)棄土棄渣,加上人為活動劇烈,給原地貌造成了嚴(yán)重的破壞和擾動,為此本文進行分析研究,通過分析金堆城北部排土場水土流失災(zāi)害現(xiàn)狀,研究其分布和侵蝕規(guī)律,為科學(xué)合理的治理措施提供依據(jù)。本文主要得到以下結(jié)論:1、根據(jù)現(xiàn)場調(diào)查和勘察綜合分析,北部排土場地表植被受到嚴(yán)重破壞,水土流失災(zāi)害狀況相當(dāng)嚴(yán)重。2、通過對巖性、沖刷量和覆蓋率的分析,得出覆蓋率對防治水土流失災(zāi)害起主要作用。3、排土場水土流失災(zāi)害主要發(fā)生在坡面,巖性較破碎且風(fēng)化程度越高的部位侵蝕溝越明顯。4、侵蝕規(guī)律的時間、空間分布明顯,主要發(fā)生在多雨季節(jié),且侵蝕溝中部一般比較深,上部比較細(xì)小,整個形態(tài)交叉又合并,在坡面下部形成扇狀堆積物。
[Abstract]:Soil erosion disaster is one of the serious geological disasters in China, which seriously threatens the economic construction and the safety of people's life and property, and is in urgent need of management. The dump in the northern part of Jinduicheng has been seriously damaged and disturbed by the acceptance of the abandoned soil and the waste residue of the mining area and the intense human activities. Therefore, this paper analyzes and studies the present situation of the soil and water loss disaster in the northern dump of Jinduicheng, through the analysis of the current situation of soil and water loss. The study of its distribution and erosion law provides the basis for scientific and reasonable control measures. The main conclusions of this paper are as follows: 1. According to the field investigation and comprehensive investigation and analysis, the vegetation on the surface of the northern dump has been seriously damaged, and the situation of soil and water loss disaster is quite serious. 2. Through the analysis of lithology, scour amount and coverage, The results show that coverage rate plays a major role in the prevention and control of soil erosion disasters. 3, soil erosion disasters in dump mainly occur on the slope, and the erosion trenches in the areas where the lithology is relatively broken and the degree of weathering is higher are more obvious. 4, the time of erosion law, The spatial distribution is obvious, mainly occurred in rainy season, and the erosion ditch is generally deep in the middle, the upper part is smaller, the whole form is crossed and merged, and the fan-shaped deposits are formed in the lower part of the slope.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S157.1

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本文編號：2325313