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目前荷载传递模型的确定通常依赖于现场试验,而现场试验需要很长时间,费用也相当大,并且当地形复杂时试桩试验结果也无法应用到全部工程。而且对于次要建筑,国内规范均没有要求进行现场试验。为避免基桩竖向承载分析需要依赖大型现场试验的不便,本文首先建立了一套由常规土体室内试验确定的物理、力学性质参数来预估竖向荷载作用下基桩荷载传递模型的系统,同时借鉴以往该地的其它静载试验资料,将上述系统与遗传算法相结合,得到了由现有资料预估基桩竖向变形及承载力的综合方法。
At present, the determination of load transfer model usually depends on the field test. However, the field test takes a long time and the cost is quite large, and the test results of the test pile when the terrain is complex can not be applied to all the projects. And for the secondary building, the domestic norms are not required to conduct field trials. In order to avoid the inconvenience that the vertical bearing analysis of foundation pile needs to depend on the large-scale field test, a set of physical and mechanical properties parameters determined by the conventional soil experiment are established to predict the load transfer model of the pile under vertical load . At the same time, based on other static load test data of the past, combining the above system with genetic algorithm, the integrated method of estimating the vertical deformation and bearing capacity of foundation pile from existing data was obtained.