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以下为铁道部第四勘测设计院控制爆破研究室设计的二起控制爆破实例。一、湖北省医学院附一医院对旧防空洞进行控制爆破拆除。该防空洞所处环境,南侧相距约13米处有新建五层住宅一幢,西面约2米为一砖房。防空洞的结构,顶板近似正方形,边长为6米,厚1.5米,底部为密排钢轨,边墙及洞底均为砖砌结构。因在居民区进
The following are two examples of controlled blasting for the design of controlled blasting laboratory of the Fourth Survey and Design Institute of the Ministry of Railways. 1. Controlled demolition of old air-raid shelters at the First Affiliated Hospital of Hubei Medical College. The environment of the air-raid shelter is about 13 meters away from the south side and a new five-storey house. About 2 meters west is a brick house. The structure of the air-raid shelter is similar to that of the ceiling, with an edge length of 6 meters and a thickness of 1.5 meters. The bottom is a closely-arranged rail, and the side walls and the bottom of the cave are all brickwork structures. Due to entering in residential areas