崩塌（崩落、垮塌或塌方）是指较陡斜坡上的岩土体在重力作用下突然脱离母体崩落、滚动、堆积在坡脚（或沟谷）的地质现象。此处可见明显的崩塌体，崩塌体中灰岩破碎严重，且灰岩碎块基本被泥土所覆盖，故为一古崩塌体。 Collapse refers to the geological phenomenon that rock-soil body on the steep slope abruptly breaks away from the parent rock under the effect of gravity and accumulates at slope toe or cleugh. There can be seen obvious rockfalls in which the limestone broke heavily and limestone fragments were almost covered by soil, so it’s called ancient collapse.