目前,岩石嵌固型基础及掏挖式、牛掏挖式基础在送电线路上得到了日益广泛的应用。如何在爆破掏挖成孔中,保证不破坏岩体结构的整体性,保持孔壁及周围岩体的地质原状,达到充分利用岩体的力学特性,提高基础抗拔力的目的,成了一个十分重要的课题。 At present, the rock embedded foundation, excavation type, and calf excavation foundation have been increasingly used in transmission lines. How to make holes in blasting rafts to ensure that the integrity of the rock mass structure is not destroyed, the geology of the hole wall and the surrounding rock mass is maintained, and the purpose of fully utilizing the mechanical properties of the rock mass and improving the foundation pull-out resistance becomes a A very important topic.