论文部分内容阅读
九江大桥重建墩位处覆盖层浅、岩层倾斜,且河床遗有坍塌梁体、混凝土块、钢构件等不明位置杂物,对此处桩基施工造成极大困扰。通过采用接触式探摸方法进行水下河床探摸,确定杂物分布情况,结合见缝插针式的支承钢管桩插打方法,并对施工平台进行动态设计等措施,有效解决了该特殊情况下的深水区复杂河床钻孔灌注桩基施工难题。
The Jiujiang Bridge reconstruction pier shallow, rock slope, and left the riverbed collapse of beams, concrete blocks, steel structures and other unidentified location of debris, pile construction here caused great trouble. By using the contact method to detect underwater river bed, determine the distribution of debris, combined with the insertion of pin-type support steel pipe pile insertion method, and dynamic design of the construction platform and other measures to effectively solve the special circumstances Construction Problems of Bored Pile Foundation in Complicated Riverbed in Sham Shui Po.