复杂地基旋挖灌注桩深孔爆破与导管旋挖清障技术研究

Research on the Technology of Deep Hole Blasting of Rotary Drilling and Tube Rotary Drilling Repair on Complex Foundation

针对复杂地基旋挖灌注桩深孔爆破与导管旋挖清障技术进行了系统的研究,通过孤石破碎清障和旧桩拨出清障,介绍了整个工艺流程和技术要点。该技术机械化程度高,施工速度快,污染小、噪音低、振动小、质量好、成本低,具有良好的经济效益和社会效益。

This article systematically studies the technology of deep hole blasting of rotary drilling and tube rotary drilling repair on complex foundation. This article also introduces the rock breaking method and old pile dialing method to show the technical process and main technical points. The technology is highly mechanized with the advantages of quick construction speed,small pollution,low noise,small vibration,good quality and low cost. It can bring favorable economic and social benefits.