我国人口多,耕地少,珍惜和合理利用每寸土地,是我国的国策,随着建设用地的增加,农村耕地不断减少,如何利用山沟荒坡等开拓城市用地或修建住宅已迫在眉睫。根据我国著名建筑专家任震英同志关于利用荒坡沟壑修建现代化的窑洞或覆土建筑的建议,1984年在兰州雷坛河南侧的五里铺的某山坡上,进 Our country has a large population and little cultivated land. It cherishes and makes rational use of every inch of land. It is China’s national policy. With the increase of construction land, the amount of cultivated land in rural areas continues to decrease, and it is urgent to use land for slopes and slopes to open up urban land or build houses. According to suggestions made by Ren Zhenying, a famous expert on construction in China, on the proposal of building a modern cave dwelling or earth-covered construction with the use of barren slopes and gullies, it was built on a hillside of Wulipu on the Henan side of Leizhou, Lanzhou, in 1984.