汉长安城工作队于2002年6月对汉长安城城墙西南角遗址进行了钻探和试掘,究明了西南角附近南城墙、西城墙的形制与筑法,西城墙内外的道路和南城墙外壕沟的范围,并确认城角存在角楼建筑,始建年代可能在惠帝筑城墙时期或以后,在西汉中晚期和新莽时期都曾维修或增建,毁坏于新莽末年或更始末年。 Han Chang’an City Task Force conducted a drilling and trial excavation of the southwestern corner of the Chang’an City Wall in June 2002, illustrating the formation and construction of the south wall and the west wall near the southwest corner, the roads inside and outside the west wall and the south wall The scope of the moat and the existence of turret buildings in the corner of the city were confirmed. The original era may have been repaired or built during the period of the imperial fortification walls or later, in the middle and late Western Han dynasties and during the reign of New Mang and destroyed in the last year or the end of New Mang Dynasty.