垂直爆破开挖技术在狭小区域深基坑施工中的应用

Application of Vertical Blasting Excavation in Deep Foundation Excavation Under Narrow Area

在重庆某电厂取水泵房地下结构施工过程中,通过对当地岩石的物理特性进行深入研究,采用了垂直爆破开挖的施工工艺,取得了良好效果。从施工工期和成本两个方面与放坡爆破开挖进行了比较,结果表明,采用垂直爆破开挖可节省工程成本,缩短施工工期,具有技术先进性和经济合理性。

In the construction of pumping station underground structure of a power plant in Chongqing, based on further study of physical properties of the local rock, vertical blasting excavation technology was adopted and good results were achieved. Through comparing vertical blasting excavation and grading blasting excavation on duration and cost, the result showed that vertical blasting excavation could save construction costs and shorten construction period. The technology of vertical blasting excavation was advanced and economical.