【摘要】 秦汉时期,我国古代的风水理论初步创立,出现了"龙脉"、"王气"等风水观念。在这一风水理论的指导下,汉长安的城址确立在了颇符"龙脉"要求的龙首原上。但由于初创的风水学说并不成熟,汉长安城的中心殿——未央宫居城之西南隅,并未"取法天象"处在"象帝居"的北面位置,违背了春秋以来约定俗成的宫室营建制度,一定意义上削弱了帝居的拱卫之势,影响了帝王的至尊形象。汉长安城内部布局混乱而无规则,与传统的外形方正,内部工整对称的阳宅建造原则不符。所以,随着汉王朝的衰落和倾覆,汉长安城也随之退出了历史舞台,被规模更大、布局更合理的隋唐长安城所取代。更多还原

【Abstract】 Qin and Han period saw the establishment of geomantic theory.Guided the geomantic concepts,including "the dragon vein" and "the royal sign" etc,Changan city was built on the head of the "dragon".However,owing to the deficiency of the primary geomantic theory,the central hall,located in the south-west of the city,failed to meet the demand of "royal location",which was supposed to be in the north.This location is against the conventional idea of building up the palace,which is also considered to have negative influence on the royal supreme symbol.The irregular arrangement of the inner Changan city is against the rules that outline should be regular with symmetry inner design.With the declining of Han Dynasty,the Han Changan was replaced by Sui and Dang Dynasty Changan which was more regularly designed and grand.更多还原