黏土护壁旋挖钻干挖成孔法在砂砾地层中的应用

Application of Dry Rotary Excavation and Pore-forming Method for Retaining Wall of Clay in Sand-gravel Stratum

结合工程实例,介绍了黏土护壁干挖成孔施工工艺流程,阐述了施工过程质量控制要点,实践证明,该施工技术综合了干挖成孔和泥浆护壁成孔两者的优点,既提高了成孔速度,又降低了施工成本。

In combination with project case,the construction technology process of dry excavation pore forming for retaining wall of clay is introduced,and the quality control points during the construction are elaborated.The practice proves that,this kind of construction technology integrates the merits of dry excavation pore forming and pore forming of retaining wall of slurry,which can not only improve the pore-forming speed,but also reduce the construction cost.