heavy punch

Combined with the construction practice,the paper introduced the construction methods and the quality guarantee measures of tension weight churning in the construction of deep-hole group piles.

根据在内蒙古自治区乌海黄河大桥的监理过程,介绍了深孔群桩中的重锤冲击的施工方法及整体质量保障措施,着重反映了根据不同地质特征利用重锤冲击方法处理深孔群桩的施工技术。