TU445.55+1
护筒底穿在水上钻孔灌注桩施工中危害很大,为了在施工中减少护筒底穿,从护筒制作、埋设及施工中各个环节分析原因,加以预防,并介绍护筒底穿后的相应处理措施。
刘瑞臣,宋小军.水上钻孔灌注桩护筒底穿的预防及处理[J].钻探工程,2003,30(2):23-24,37.. The Preventive and Countermeasure of the Thrusting through the Bottom of the Casing Used in Bored Piles Drilled in Water[J]. Drilling Engineering, 2003,30(2):23-24,37.