Study On Early Warning Of Construction Safety

The rapid development of the construction industry occupies an important position in the development process of the national economy,not only promotes the increase in employment,but also leads to the progress of many other industries.However,construction has a long construction period,complex construction process,and the influence of many factors,which makes the high occurrence of safety accidents in construction and a staggering amount of property losses.Although the country attaches great importance to the construction,promulgates a number of related laws and regulations of construction safety management,and strict requirements for safety management of construction enterprises,but the construction is still not free from the passive construction safety management state.Therefore,it is very important to realize the transformation of the construction industry from emergency handling to warning in advance.At present,scholars at home and abroad have made much research on Early-Warning and prevention,and have achieved certain results.However,for the early warning of construction safety,it lacks high precision and applicability model of early warning,therefore,it is of great significance to establish an accurate and efficient early-warning model of construction safety.Based on the analysis of the current situation of construction safety management,it is pointed out that the higher mortality rate of the major accidents and the higher accidents,and it is necessary to clarify the early warning research of building construction safety accidents.Through the analysis of the types and laws of building construction safety accidents happened in China since 2011,and comprehensively using the accident causation theory,this paper finds out the main factors influencing the construction safety accidents.Through the selection and integrated of the factors with SPSS software,this paper eventually establishs construction safety early-warning index system with five level indicators,nineteen two level index.Though the analysis and comparison of the characteristics and applicable scope of various early warning methods,this paper points out the superiority of BP neural network for early warning of safety accidents in construction.Aiming at the limitations of construction safety accident early warning mode,which is based on the traditional BP neural network,this paper improves the convergence speed and prediction accuracy.Finally,combining with the actual situation of the project and Matlab software,this paper makes an empirical study on the improved model in order to prevent the construction safety accident and provide a theoretical basis to improve the efficiency of construction safety management.