大凌河特大桥试桩极限承载力的试验及评价

Testing and Evaluation of Dalinghe Bridge Pile Ultimate Bearing Capacity

本文通过在大凌河特大桥工程中探索性应用"扁担梁"式锚桩法试桩静载试验,采用小直径径试桩,实测试桩竖向抗压极限承载力以及桩周各土层的分段摩阻力与端阻力,为设计单位对桩参数进行优化提供了有利的试验数据。同时,也为本地区试桩的试验、评价提出了一种准确、可靠、经济可行、工期短的检测方法。

Through the application of should pole beam anchorage pile memoa tesung pnc atat of Dalinghe Bridge, the article applies small diameter test pile diameter to test vertical compressive ultimate bearing capacity of piles, and pile block friction resistance and end resistance of each soil layer, which provides testing data to parameter optimization of pile for designing department. Meanwhile, it also provides for local pile test evaluation a testing method of accurate, reliable, economic, and feasible construction time.