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我国的地面光伏电站多数建在水土资源脆弱的西北地区,由于光伏电站占地面积较大,会对水土造成一定扰动,而造成最大扰动的因素是光伏电站阵列基础建设。分析了螺旋钢桩、混凝土灌注桩、钢筋混凝土等3种基础形式的优缺点及对水土流失的影响,结果为:在水土流失影响、工期、施工成本方面,螺旋钢桩、混凝土灌注桩基础均优于钢筋混凝土基础,但是前两者对土质、地下水位有一定要求,其适用范围有一定的局限性。建议在满足相关要求的前提下,从水土流失影响角度考虑应优先采用螺旋钢桩、混凝土灌注桩基础。
Most of the ground photovoltaic power plants in China are built in the northwestern region where soil and water resources are vulnerable. Due to the large area of the photovoltaic power station, some disturbance will be caused to the soil and water, and the most disturbing factor is the PV array infrastructure. The advantages and disadvantages of three basic forms, including spiral steel piles, concrete bored piles and reinforced concrete, and their influences on soil erosion are analyzed. The results are as follows: In terms of the influence of soil and water loss, construction period and construction cost, the spiral steel piles and the concrete bored piles Which is better than the foundation of reinforced concrete. However, the former two have certain requirements on soil quality and groundwater level, and the applicable scope has some limitations. Proposed to meet the relevant requirements under the premise, from the perspective of soil erosion should give priority to the use of spiral steel piles, concrete piles foundation.