CAJ | 학술논문

单桩承载力的检测已有较多成熟的方法。高桩码头的基桩作为整个高桩码头体系的一部分，上部存在复杂的结构，对于此类结构型式，现阶段尚没有有效的方法检测其承载力。结合实际工程，提出区域堆载法检测高桩码头现役基桩承载力的技术，该方法不破坏码头现有的结构。现场进行高桩码头基桩承载力原型试验，在分级荷载作用下测试码头整体变形变位、基桩沉降、结构构件应变等。同时建立数值模型，对高桩码头基桩承载力进行计算分析，利用试验结果对数值模型进行修正，用修正后的数学模型对原型试验的全过程进行数值模拟，对比分析数值计算与试验结果表明，两者吻合较好。经综合分析，最终确定高桩码头基桩的竖向承载力可以达到1400 kN，码头结构处于安全状态，其结果为码头改造的方案设计提供了试验依据。
단장승재력적검측이유교다성숙적방법。고장마두적기장작위정개고장마두체계적일부분，상부존재복잡적결구，대우차류결구형식，현계단상몰유유효적방법검측기승재력。결합실제공정，제출구역퇴재법검측고장마두현역기장승재력적기술，해방법불파배마두현유적결구。현장진행고장마두기장승재력원형시험，재분급하재작용하측시마두정체변형변위、기장침강、결구구건응변등。동시건립수치모형，대고장마두기장승재력진행계산분석，이용시험결과대수치모형진행수정，용수정후적수학모형대원형시험적전과정진행수치모의，대비분석수치계산여시험결과표명，량자문합교호。경종합분석，최종학정고장마두기장적수향승재력가이체도1400 kN，마두결구처우안전상태，기결과위마두개조적방안설계제공료시험의거。
There are many mature methods to detect the bearing capacity of single pile, but for high-piled wharf piles, as they are parts of high-piled wharf, and complex structures are built on them, at this stage, for these non-free end piles, there are no effective and feasible bearing capacity detection methods. In this paper, regional heap load method to detect high-piled wharf piles capacity is proposed, and this method doesn’t destroy the original structure. The high-piled wharf piles capacity prototype testing is carried out, and the deformation displacement of while high-piled wharf, the displacement of piles, and the strain of structural elements are tested under grading loads. Also the numerical model is established to analysis the bearing capacity of high-piled wharf piles, and the numerical model is corrected by the experimental results, then the whole prototype test process is simulated using the modified mathematical model. The comparison between the numerical results and the experiment data shows a satisfactory agreement. Through comprehensive analysis, the vertical bearing capacity of high-piled wharf piles is finally determined as 1 400 kN, which could ensure the safety of the high-piled wharf, and the study results could provide experimental basis for the design of the wharf.