高樁碼頭基樁豎向承載力原型試驗(yàn)研究
[Abstract]:There are many mature methods to measure the bearing capacity of single pile. The foundation pile of high pile wharf is a part of the whole system of high pile wharf, and there are complex structures in the upper part. There is no effective method to measure the bearing capacity of this kind of structure at present. Combined with the actual engineering, the paper puts forward the technique of measuring the bearing capacity of existing foundation piles of high pile wharf by regional surcharge method, which does not destroy the existing structure of the wharf. The prototype test of bearing capacity of foundation pile of high pile wharf was carried out on the spot. The deformation displacement settlement of foundation pile and strain of structural member were tested under the action of graded load. At the same time, the numerical model is established to calculate and analyze the bearing capacity of the pile foundation of the high pile wharf, the numerical model is modified by the test results, and the whole process of the prototype test is simulated with the modified mathematical model. The numerical calculation and experimental results show that the two are in good agreement with each other. Through comprehensive analysis, the vertical bearing capacity of pile foundation can reach 1 400kN, and the structure of wharf is in a safe state. The results provide experimental basis for the scheme design of wharf reconstruction.
【作者單位】: 交通運(yùn)輸部天津水運(yùn)工程科學(xué)研究所水工構(gòu)造物檢測(cè)、診斷與加固技術(shù)交通行業(yè)重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】:U656.1;U655.55
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