Analysis Of The Fenjiashan Reservoir Dam Monitoring Data And The Analysis Of Strengthening Effect Stugying

FengJiaShan reservoir has been the dyadic homogeneity of one roller compaction earth dam,initial stage construction has passed and has reformed except dangerous strengthening, safety has already run more than thirty years,has accumulated rich monitoring data,has been able to know dam operation state in time,provided information for dam safety works by analysing the dam monitoring data.In the simultaneous FengJiaShan reservoir soil stone dam within the province,have dam monitoring automation degree is high,the data series is entire wait for a characteristic,the method analysing by combining dam automation monioring data with manpower deformation data,be that similar soil stone dam data analysis plays arrive at certain reference role,and how,to be able to judge by the fact that data analysis goes to study course consolidating the effect reforming a hereafter,consolidating.In this paper,I analyzed dam soakage curve,dam's bypass seepage,seepage discharge. As Deformation of the dam observation data analysis,there are many general analysis method, for instance,comparison method,plotting method,statistics law of characteristic value and mathematical model method.In this paper,mainly use the first three methodsUsing upper methods,analysis dam's seepage pressure,soakage curve,dam's bypass seepage,seepage discharge and the effect of impervious grouting.It is clear that all data are in a reasonable scope.At present dam is stable,found no major anomalies.In particular through the danger control and reinforcement,significantly reducing flow bypass seepage,there has a obvious effect of anti-seepage.Of course,it can be seen from the analysis,dam right shoulder has a developing fracture,soakage curve higher in some regional.These are worthy of attention.Through the settlement data analysis,the inclination of value within the limit,fully shows that the current operation of the dam from the data analysis level is safe.It is worth noting that individual measurement points of the right abutment facing water slope not reached the inclination of limits,but to calculate the inclination of value larger than elsewhere, In addition,the complicated geological conditions,fissures Karst development,for the dam to the right shoulder observation data,it is necessary to timely analysis of whether there are new cracks. Analyzing the dam monitoring data and evaluating the effect of strengthening we must look at the problem as a whole,because of a dam in the complex geographical environment, the dam body,abutment,the slope of the deformation and seepage will inevitably exist intrinsic relation.By that the dam observes data analysis to FengJiaShan reservoir and evaluate the reinforcement of the results,it is vital to carry out a few key points:(1)Conjoint analysis of the seepage pressure and analysis of the seepage flow change.(2) Conjoint analysis of deformation and seepage data observation.The object change is all having whose inherent law,the seepage data and the deformation data are influencing each other.Therefore,using seepage and deformation data to analyze the dam of state,evaluating the effect of reinforcement,we must be considered comprehensive.