Large temporary facilities in high-speed railway construction have the characteristics of large area and deep damage extent, which lead to the difficulties in reclamation. Its reclamation optimal design is the previous condition to determine the reclamation direction reasonably and improve the utilization efficiency of land. Based on the engineering division, reclamation partition setting, reclamation suitability assessment and reclamation input-output analysis of large temporary facilities construction land, by using DEA model to evaluate the efficiencies of different reclamation directions, the reclamation optimization plans were made and Jiangyin prefabrication yard of Beijing-Shanghai high-speed railway was taken as an example to study. The results showed that the area of reclamation, adjusting and non-reclamation area of Jiangyin prefabrication yard respectively were 8.69、 5.54 and 1.49 hm2. For the adjusting area,the optimal reclamation directions for the beam making area, the steel processing area and the beam storage zone were agriculture facilities land while the optimal reclamation directions for other sub-zone were forestlands.%高速铁路大临设施是土地占用面积较多、破坏程度较强、复垦难度较大的工程建设用地类型之一,其复垦方案优化设计是合理确定复垦方向、提高复垦利用效益的前置条件.该研究在高速铁路大临设施工程分区、复垦方案初定、复垦适宜性评价、复垦投入产出分析的基础上,通过DEA模型评价各复垦方向的综合效率,确定复垦优化方案,并以京沪高速铁路江阴制梁场为例进行了实证分析.研究结果表明,江阴制梁场复垦区、待调整区与不复垦区面积分别为8.69、5.54及1.49 hm2待调整区中制梁区、存梁区与钢筋加工区因桩基础密度较大,硬质化程度较深,经复垦优化分析后最佳复垦方向为设施农业用地,其他亚区破坏程度较低而最佳复垦方向为林地,研究结果与实际较为吻合.
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