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51问答网 > 明长城城墙内侧砌筑券门的原因是什么？

明长城城墙内侧砌筑券门的原因是什么？

2025-03-16 04:55:46

推荐回答（1个）

回答1：

为保障守卫城墙的兵力、兵器和物资能迅速地在城上城下机动，在城墙内侧，每间隔适当距离，以城砖或条石砌筑一个直墙半元拱顶的券门，其宽度约为1.5米，高度为2米，并以砖石构筑阶梯直通城顶。在要隘和关堡城池的重要部位，构筑登城的兵马道，如八达岭“北门锁钥”城内的南北梯道。构筑城墙时，墙外侧的迎敌面一般都构筑得十分陡峻，使敌人难以接近和攻打。城墙的内侧都比较坦缓，以便于守备士卒的机动。如八达岭“北门锁钥”处的南北城墙。就十分明显地体现出这种构筑特点。

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