Evaluation method of unloading effect of pile bearing platform in separated unloading sheet pile wharf
A sheet pile wharf and evaluation method technology, applied in the direction of bank wall, instrument, bank pier, etc., can solve the problems of unclear bearing characteristics, no complete and reliable theoretical design method, and no clear and feasible method for quantitative evaluation of unloading mechanism.
Active Publication Date: 2019-04-30
HOHAI UNIV
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Problems solved by technology
However, the load transfer mechanism and bearing characteristics of this new structure are not yet clear, and its theoretical research lags far behind engineering practice. To a certain extent, its promotion and application are limited
Before the patent of this invention, the current design and application mainly depended on the centrifugal model test and design experience. In particular, there is still no clear and feasible method for the quantitative evaluation of the unloading mechanism of the pile bearing platform, and the measurement index of the unloading effect has not yet been established. , which makes the design optimization lack a clear goal
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[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0038] Such as figure 1 As shown, the evaluation method of the unloading effect of the pile bearing platform in the separated unloading sheet pile wharf includes the following steps:
[0039] Step 1. Based on the data of the separated unloading sheet pile wharf to be evaluated, establish the first numerical analysis model, that is, the numerical analysis model of the separated unloading type sheet pile wharf model. The schematic diagram is as follows figure 2 As shown, calculate the front wall bending moment, cap pile bending moment, cap pile top axial force and cap pile horizontal displacement.
[0040] Step 2, remove the pile bearing platform on the basis of the first numerical analysis mod...
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The invention discloses an unloading effect evaluation method for a pile bearing platform in a separation unloading type sheet pile wharf. The method comprises the steps that a first numerical analysis model is built, and the front wall bending moment, the bearing platform pile bending moment, the bearing platform axial force and the bearing platform horizontal displacement are calculated; a second numerical analysis model is built, and the front wall bending moment, the front wall horizontal displacement, the bearing platform pile bending moment, the bearing platform axial force and the bearing platform horizontal displacement are calculated; a third numerical analysis model is built, and the front wall bending moment and the front wall horizontal displacement are calculated; the vertical unloading effect of the pile bearing platform is evaluated; the horizontal unloading effect of the pile bearing platform is evaluated; the spatial unloading effect of the pile bearing platform is evaluated. According to the method, the defects that the unloading effect of an existing separation unloading type sheet pile wharf is uncertain and cannot be quantitatively measured are overcome, measurement indexes and a reference basis are provided for optimization and design of the separation unloading type sheet pile wharf and particularly for design and optimization of the unloading effect of the pile bearing platform, and a technical support is provided for application and popularization of the separation unloading type sheet pile wharf.
Description
technical field [0001] The invention relates to an evaluation method, in particular to a method for evaluating the unloading effect of a pile bearing platform in a separated unloading sheet pile wharf. Background technique [0002] There are mainly three types of wharf structures in port engineering: gravity wharf, high pile wharf and sheet pile wharf. According to engineering conditions and structural characteristics, various types of wharves are widely used in our country. Sheet pile wharves have the characteristics of fast construction speed, short construction period, and low cost. According to incomplete statistics, nearly 300 sheet pile wharf berths have been built since the founding of the People's Republic of China, but more than 85% of them are small and medium-sized wharves. Compared with the development of gravity wharf and high-pile wharf, the development of domestic sheet pile wharf is obviously lagging behind in the development of large-scale and deep water. ...
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IPC IPC(8): G06F17/50E02B1/00E02B3/06
CPCE02B1/00E02B3/068G06F30/23G06F30/367
Inventor 谭慧明陈佳王琰牛文丽
Owner HOHAI UNIV