The Investigation And Research On Ancient Relics Of The De Han Castle At Tong Jiang

De Han Castle(also called An Ji stockade) lied in Yongan town, which located at the northeast of Tong Jiang county about forty kilometres from the county. Existing ancient relics include: four city gates, part of the city wall, and other city defense,outside the city built cliff inscription, inside the city inscription etc.Among these remains, one the part has been built by Yu-Jie in Song-Mongolian(Yuan) war, in order to resist offensive in Mongolia, the other part has been rebuilt and reinforced by local officials and people, in Ming and Qing disorder.According to the category, De Han City ancient relics can be divided into city defense, including city gate, rampart, battery, drill ground, administration building etc.Life remains, including cave shrine, inscription, temple, tombstone, pond etc. Since the De Han City has been built, it would play the function of military defense and station troops. Among them, fortress defense includes two parts: at first, outside defense. De Han City is one of the fortress defense systems in Si Chuan, in the large angle, it connects along with many fortress includes the Xiao Ning city, Yun Shan City, Da Liang City, Diao Yu City etc. At the small angle, it was surrounded counting in Lei Gu city, Lao Jun stockade, Chong Shi stockade, Da Bao stockade, Pao Ma stockade, Xiao Cheng stockade, Qing Ling stockade, Jiang Jun stockade and dozens of stockades,mainly in solid mountain defense, comprising waterway transportation and defense.Many mountain cities are connected by the river, from the point into line, in mountain city to produce water dynamic static, to form a unified whole, in order to play the mountain city defense maximum utility. Secondly, internal defense. De Han City is called “Tong Cheng”, because it has unique defensive advantage. According to the County annals records, De Han City “surrounded by steep, as the city wall ”. In addition to east, south, west, north four city gates could go to the mountain, no other way through. The four city gates were built up to the mountain, cut out the gate on the mountain, take advantage of the precipitous mountain body as city wall, high cliffs and deep gullies as barrier, could hinder the incoming enemy well. Combined with plenty of water in city, rich of land resources, the city has a strong survival and defense ability.These defensive system made De Han City is provided with following characteristics:central city and the auxiliary city cooperated very well, using spot to control side, water and land conversion to each other, offensive and defensive complementing each other,preparation and life acting upon each other.De Han City has more than thirty cliff inscriptions, especially at South gate andEast gate. Most of these inscriptions were guarding officials inscribed with feeling, its content has involved humanity, history, physical geography and other aspects, has a high impact value in historical records, literature, calligraphy, culture.Yan-Lan Disorder in mid-Ming Dynasty, almost swept entire the Tong-Jiang town area. In order to save local people from dire straits, Lin-Jun was ordered to westward expedition, and then manned in De Han City, he spent the last part of his military career in this place,has left over five cliff inscriptions for De Han City. These expressed his complex mood in concerns about the state, repeated wins but repeated attacks, unable to display ability. Lin Jun had a great influence in the Ming Dynasty, in his resignation and died, was been deeply appreciated by Shao Jie-chun, Liu Chun, Fan Fu from Ming dynasty. He showed great ability in state and local governance, writing poetry and calligraphy, military operations and other aspects. So far, he is still an immortal figure in our study and learn.