深孔高压灌浆下形成铸钻杆原因分析与解决措施

Cause Analysis for the Cast Drill Rod in a Deep Hole High Pressure Grouting and Its Resolution Measures

该文通过工程实例分析了形成铸钻杆的原因 ,并采取了有效的防治措施 ,在施工中降低了事故的发生率。

Through the project case histories the paper analysed the causes of forming the cast drill rod and an useful protection measure is taken. Thus,the accident rate is dicreased in the construction.