Study On Hazard Analysis Method Of Horizontal Displacement Of Structures

Horizontal displacement deformation monitoring(HDDM)is a monitoring method to analyze the displacement change of the monitoring body in the horizontal plane.Because the horizontal displacement deformation monitoring tends to study the Deformation Significance(DS)for a long time,it is easy to neglect other factors and only consider the significant deformation,as a result,the analysis results are incomplete and it is difficult to find the potential variation law of horizontal displacement.Consistency matrix(CM)theory solves the whole consistency analysis of horizontal displacement well,but because of its simple description,it can not analyze other types of hazards of monitoring body.Therefore,reasonable description of hazards and establishment of corresponding mathematical methods have become one of the most active research topics in the analysis of horizontal displacement deformation.In order to effectively describe the hazard types of monitoring body deformation and realize its effective judgment,this paper took horizontal displacement plane vector as the research tool and used the consistent description method to classify and model the hazard of horizontal displacement deformation.Firstly,by combining mechanical and geological conditions with horizontal displacement deformation characteristics,the horizontal displacement hazards of monitoring bodies were described as five types: consistency,distortion,shearing,centralization and diffusion,and their respective characteristics and internal relations were analyzed,and the semantic description of qualitative and quantitative was established.Secondly,five types of deformation hazard factors were extracted and classified as single point combined vector and aggregate vector,distortion center,consistency opposite combined vector,convergence center and diffusion center.Taking risk factors as the core of calculation,the automatic calculation and identification of hazard types were realized by using observation vector matrix,angle calculation and setting ratio threshold.Finally,three typical horizontal displacement monitoring projects are selected as experimental projects to verify the feasibility and validity of the theoretical methods proposed in this paper.The method proposed in this paper is innovative.Firstly,all kinds of hazard calculation factors are based on vector operation,and there is no ambiguity in the proposed method.Secondly,the vector is incorporated into the observation vector matrix to realize hazard judgment through custom matrix,which is conducive to the establishment of an efficient batch data processing system.Finally,the hazard determination algorithm proposed in this paper is a real horizontal displacement analysis method,which is superior to the current data processing methods in visual analysis and hazard mining.Experiments showed that compared with the traditional horizontal displacement analysis method,the hazard types and their algorithms proposed in this paper have higher computational efficiency and validity,and it could excavate the potential hazard change law of horizontal displacement and improve the comprehensiveness of data analysis.Meanwhile,the theory and method proposed in this paper have a strict mathematical foundation,good implementation,dynamic and visibility analysis effect and strong data mining ability.Follow-up research should focus on improving hazard type description and algorithm programming to further improve the robustness and computational efficiency of the method.