我们利用控制爆破，成功地拆除了霍林河矿务局选煤装车仓内水泥墩和土泥路基，缩短工期约三个月，取得了较好经济效益。1工程概况由于改进装车仓，原有水泥墩和水泥路基需要拆除。该工程爆破对象在装车仓下，作业环境复杂、难度大。其外形平面尺寸见图1，外形断面见图2。图2装 Using controlled blasting, we successfully dismantled the cement piers and mud and roadbeds in the coal loading warehouse of the Huolinhe Mining Bureau, shortened the construction period by about three months, and achieved better economic benefits. 1 Project Overview As the loading warehouse is improved, the existing cement piers and cement subgrade need to be dismantled. The project blasting object is under the loading warehouse, and the operating environment is complex and difficult. The outline size of the outline is shown in Figure 1, and the outline of the outline is shown in Figure 2. Figure 2 installed