六盘水地区自六十年代至七十年代初兴建了一批单外廊式住宅,据不完全统计有400余栋。这批住宅平均每户建筑面积大都在30平方米至40平方米之间,比国务院一九八三年住宅规定的标准中二类住宅普遍低10平方米到20平方米。上下水、厨房、厕所均不到户,其中部分住宅设置了集中上下水、厕所,进门的过道兼作厨房,仅能放一个炉灶,既不安全也不卫生,使用起来极不便。加之管理不善,年久失修,造成有些下水道及厕所堵塞。于是各户自行安装上下水管道,随意黹通楼板、墙面,形成三害:一浪费国家大量资材;二损害了建筑物的整体性 In the Liupanshui area, a number of single-porch houses were built from the 1960s to the early 1970s. According to incomplete statistics, there are more than 400 buildings. The average residential area per unit of this batch of houses is mostly between 30m2 and 40m2, which is generally 10m2 to 20m2 lower than that of the second class dwellings set by the State Council in 1983. There are no upper and lower waters, kitchens, and toilets. Some of the houses have centralized water and toilets, and the aisle of the entrance serves as a kitchen. Only one stove can be placed. It is neither safe nor sanitary, and it is inconvenient to use. Coupled with poor management, long-term disrepair, resulting in some sewers and toilet blocked. Therefore, each household installed the upper and lower water pipes on its own, randomly passing through the floors and walls to form three hazards: one wasting a large amount of national resources; the other was damaging the integrity of the building.