Scope Of The Sluice Base Escapes Inversion Identification Study Based On The Theory Of The Response Surface

Coastal province of sluices number is big,due to the special geographical position and natural conditions,some sluices had to be built in soft foundation or sandy foundation that makes the sluices disease are more likely to happen,especially due to the uneven settlement,empty sediment sluice floor pavement diseases caused by the problems such as more prominent;At present,there is no perfect detection method and means to effectively diagnose the diseases of the underwater part of the sluice floor.Therefore,the mechanism of the bottom of the sluice slab is studied and the inversion of the sloping floor The safety testing of the sluice provides a new non-destructive dynamic detection method to improve the safety and reliability of the sluice.(1)In order to establish a single hole sluice model which meets the engineering practice,it is necessary to fully investigate the structural characteristics of the sluice built on the soft soil foundation and collect the relevant information of an actual sluice to provide the basis for establishing the finite element model.In this paper,the causes of the void are analyzed,and the area of the sluice slab is parameterized and classified.Then,the modal analysis of the bottom plate without void and partial voiding is carried out.The influence of the bottom floor on the vibration mode is summarized,which can provide guidance for the subsequent judgment of the void type.(2)the relationship between the modal data of the sluice and the vorticity parameters of the slab is fitted by the response surface theory,which is to replace the finite element model by using the fitted response surface model to solve the problem of low computational efficiency.The inversion of the unilateral voids and the voids of the multi-side cavities of the single-hole sluice without considering the foundation treatment are carried out by means of the improved genetic algorithm based on the sluice modal information as the objective function.(3)Considering the requirement of foundation treatment on the soft foundation,it is known that the pile foundation treatment is the most common and the most common;Based on the ANSYS software,the pile foundation sluice model is established,and the modal analysis of the pile foundation sluice is carried out without any void and partial voiding.The model is compared with the modal of the pile foundation without considering the modal difference the reason.The relationship between the modal data of the pile foundation sluice and the vorticity parameter of the bottom plate is fitted by the response surface theory.The response surface model is established to replace the finite element model.By means of the improved genetic function of the sluice modal information This paper studies the inversion and identification of the voids and the hollow areas of the piles,and analyzes the influence of the measuring points on the recognition results.The numerical simulation analysis shows:the amount of information in the objective function of the genetic algorithm has a decisive influence on the recognition result.For the unilateral and multi-lateral vortices of the pile-free sluice,the method can well control the gripping area.For the identification of the voids of the pile foundation sluice,it is also possible to identify the approximate void area,but the accuracy is lower than that of the pile foundation,and the recognition accuracy can be improved by measuring the position of the measuring point.