Research On Stability And Influence Factors Of Tailings Dam

In order to reduce the huge loss and disaster caused by the tailings instability. thetailings number is large, but condition is poor, in recent years there were a series oftailings accident, to the state, enterprise and the masses of people’s lives and propertycaused a great loss. Tailings of stability and security has become governments, miningenterprise, the academic circles on the major issues.This paper mainly content is through the data access, analyzes the influentialfactors of the tailings dam stability, through the numerical simulation clear these factorson the dam the influence law of stability, and combined with the engineering practice,the stability of the tailing dam is analyzed. The main achievements made in the paperare as follows:Through the collection has happened tailings accident material, at internal andabroad to tailings dam paper stability analysis, this paper summarizes the characteristicsof the tailings in our country. Summary of slope stability analysis method to get theadvantages and disadvantages of each method, and finally selected papers the numericalsimulation way, choose widely used in geotechnical engineering, non-linear calculationof good performance in FLAC3Dsoftware for the computing platforms.Tailings dam on the stability factor analysis mainly from the external cause andinternal cause two aspects. Including external cause mainly analysis the library waterlevel, dry beach and downstream slope length than the influence of the tailings daminfiltrating line: the higher the library water level, the shorter length of dry, thedownstream slope steep, tailings DAMS infiltration line is high, the more vulnerable toseepage damage, the stability of the dam. Internal considered the materials of the mainstick together force, internal friction Angle on the dam safety coefficient of influence:the adhesion of tailings materials together the greater the power, the dam safetycoefficient, the higher the potential sliding surface slow; The greater the internal frictionAngle, the dam safety coefficient is higher, but for potential sliding surface have littleinfluence. These basic research for the tailing dam design, monitoring and provide thetheoretical basis for reinforcement, etc.In the stability analysis of the tailing dam, mainly from static stability and seepagestability analysis. Combined with the engineering practice of the Xixinzhuang tailings,solving safety coefficient and identify potential sliding surface, the static stabilityevaluation; In the seepage stability analysis. According to the numerical simulation ofthe infiltration and the actual measuring position line position on the analysis ofinfluence of pervasive computing indexes of the tailing dam seepage field in the (local)make reasonable stability evaluation.