CAJ | 학술논문

首次将基于沉降的桩基设计方法应用到桥梁桩基的设计实践中.分别通过调整桩长和桩数,使桩基沉降从桥梁主跨往边跨逐步增大,而在路桥连接处使边跨桥墩沉降与桥坡填土沉降基本一致,实现路桥沉降协同,从而开辟了解决桥头跳车问题的新途径.按此设计而成的某桥梁,建成后对桥梁桩墩及桥坡沉降进行了长期监测,结果表明最初的设计意图得以实现.设计实践表明沉降控制桩基对于简支桥梁是完全可行的,并能同时减少桥坡处理、桩基工程以及后期维修费用,因而具有较大的推广应用的价值.
수차장기우침강적장기설계방법응용도교량장기적설계실천중.분별통과조정장장화장수,사장기침강종교량주과왕변과축보증대,이재로교련접처사변과교돈침강여교파전토침강기본일치,실현로교침강협동,종이개벽료해결교두도차문제적신도경.안차설계이성적모교량,건성후대교량장돈급교파침강진행료장기감측,결과표명최초적설계의도득이실현.설계실천표명침강공제장기대우간지교량시완전가행적,병능동시감소교파처리、장기공정이급후기유수비용,인이구유교대적추엄응용적개치.
A new concept - settlement-based design for pile foundations was proposed, which offered a novel alternative to solve the bump problem between bridges and roads. By adjusting pile lengths and pile numbers, the settlement of pile foundation increased from the main span to the side span to such an extent that it matched the settlement of the embankment at both ends of bridges without any special treatment. After construction, a long-term monitoring program on bridge piles and the embankments was performed, which verified the practicability and efficiency of the present method for single braced bridges. The application indicates that the settlement-based design for pile foundations could greatly reduce the total costs by eliminating the necessity of soft soil treatment at embankments and decreasing pile lengths and pile numbers.