崩塌是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。崩落在坡脚的物质称为崩塌体。

此处崩塌体为官草湖组凝灰质砾岩，垂直节理裂隙发育，在风化剥蚀、流水冲刷等外力作用下，形成一个上下平行，两壁平直，外宽内窄的洞室。高约2.5m，最宽处约1.5m，最窄处约10cm。身临其境，不禁感慨“斯是陋室，惟吾德馨”。

Collapse is a geological phenomenon that the rock and soil masses on the steep slope suddenly break away from the mother rock under the action of gravity, fall or roll down and accumulate at the toe of slopes. The material falling at the foot of the slope is called collapse body.

The collapse body here is tuffaceous conglomerate of the Cretaceous Guancaohu Formation, and the vertical joints and fissures are developed. Under the action of exogenic processes like weathering and water erosion, a chamber is formed with two flat walls, wide outside and narrow inside. The chamber is 2.5m high, and the widest is 1.5m wide, the narrowest is only 10cm wide.