MATLAB-based P-Y curve automated calculation method
A calculation method and curve technology, applied in the field of calculation, can solve the problems of difficult calculation, heavy workload, and high error rate in hand calculation, and achieve the effect of easy learning and mastery, convenient operation, and complete calculation.
Inactive Publication Date: 2017-06-27
LONGYUAN (BEIJING) WIND POWER ENG & CONSULTING CO LTD
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However, at present, the calculation of P-Y curve parameters is only done by hand calculation like other functions, and due to th
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[0046] Such as Figure 1-Figure 5 Shown, the present invention comprises the following steps:
[0047] (1): First, according to the geological survey data provided by the geological survey unit, fill in six parameters and input them into MATLAB to call:
[0048](1a) Soft clay includes diameter, soil layer number, strain value when the maximum principal stress difference is half of the triaxial test, soil weight, standard value of undrained shear strength of undisturbed clay, any depth of pile below the mud surface ;
[0049] According to the geological survey report, the physical property parameters of the soil are obtained: the standard value of undrained shear strength C u , soil weight γ, any depth Z of the pile below the mud surface, coefficient ζ, pile diameter D, correlation coefficient ρ, lateral horizontal deformation Y of the pile at Z depth below the mud surface, and the maximum principal stress difference in the triaxial test Strain value at half time ε 50 ;
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The invention discloses a MATLAB-based P-Y curve automated calculation method. The method comprises the following steps of (1), according to geological exploration data provided by a geological exploration unit, filling six parameters and inputting the parameters to MATLAB for call; (2), performing data processing on clay or sandy soil according to the input parameters; and (3), performing output processing on a data processing result obtained in the step (2) to obtain a final calculation result: a P-Y text file and a P-Y graphic file, for offshore wind turbine pile foundation designers to use. According to the method, automated calculation of a P-Y curve is realized, the calculation speed is high, and a rigorous verification program is passed; the calculation speed is increased qualitatively while the calculation is complete and correct, and the labor cost is reduced by more than 1,000 times; and in addition, the visualization of the calculation result and programming is realized, so that a user can be freed from complicated mathematical operation analysis.
Description
technical field [0001] The invention relates to a calculation method, in particular to an automatic calculation method for P-Y curve based on MATLAB. Background technique [0002] The basic structure mechanism of offshore wind turbines is relatively complex, and there are many influencing factors. Although researchers have paid attention to this topic for more than 30 years, they have not yet formed a complete analysis theory and method, and there are no relevant contents in the regulations of many countries. and regulations. At present, my country is compiling industry standards for the infrastructure of offshore wind turbines. [0003] In the design and analysis of the foundation structure of offshore wind turbines, the horizontal restraint effect of soil on piles must be considered. At present, the foundation reaction force method is commonly used to calculate the pile-soil interaction under the horizontal load, that is, the continuity of the soil is ignored, and the re...
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CPCG16Z99/00
Inventor 曹会兰柳林张浩孙继栋李红有罗翔曹恩志
Owner LONGYUAN (BEIJING) WIND POWER ENG & CONSULTING CO LTD