Safety Monitoring Of Sluice Structure And Analysis Of Force Characteristics

As an integral part of the infrastructure of water resources and Hydropower projects,sluices are indispensable for flood control and drainage,water supply and diversion,and hydroelectric power generation.Some of the existing sluices have been in service for nearly 30 years.During the operation period,most of them have entered the disease stage due to water erosion,changes in surrounding temperature stress and structural durability,and there are also some dangerous situations in different parts of the sluices,which seriously affect the safe operation of the sluices and threaten the reservoir area.The safety of people's lives and property.Therefore,it is necessary to accurately evaluate the structural safety of the sluice,so that the management department can take effective remediation measures according to the actual situation.Based on this,after combing some research results at home and abroad,this paper analyses the types and causes of sluice structure damage and disease.Taking the landscape sluice in Bazhou City of Bazhong City as the research object,this paper evaluates the safety of sluice structure from safety monitoring data,finite element simulation and theoretical calculation.The main contents are as follows:(1)The main forms and hazards of sluice damage in China are analyzed and summarized by consulting and analyzing the previous literature and related information,and the main causes of sluice damage and danger are discussed.It lays a foundation for safety analysis and evaluation of sluice structure.(2)The content of safety monitoring of sluice structure is elaborated,and the operation monitoring data obtained are analyzed.Taking the safety monitoring of landscape sluice in Bazhou City of Bazhong City in Sichuan Province as an example,the feasible analysis methods of data selection in safety monitoring are analyzed to provide objective and accurate evaluation for the safety of sluice structure.(3)Taking the sluice structure of Bazhou City in Bazhong City as the research object,a three-dimensional finite element model is established by using finite element software.Considering the completion condition,normal water retaining condition,normal diaphragm discharge condition,check the whole sluice discharge condition and earthquake condition,the stress distribution of sluice structure under different conditions is analyzed in detail,and further divided into three parts.The safety of sluicestructure under different working conditions is analyzed.The results show that the sluice structure is in a safe state under all working conditions,which is consistent with the conclusions of monitoring data analysis.(4)In order to further illustrate the validity of the finite element model,the safety of the sluice structure is analyzed by using material mechanics method under normal water retaining conditions.The results show that all the structures of the sluice are in a safe state,which is consistent with the conclusions of the finite element calculation.This shows that the three methods are useful in the safety analysis of the sluice structure.It has certain practicability.