Stability Aanlysis Of The Bridge Abtment Cone Slope Soil

Infrastructure construction in the development of national economy and improve people’sliving standard plays a key role. while the construction of roads and Bridges，and plays animportant role in the construction of infrastructure, so the highway and bridge construction isthe important work in the country. Roads and Bridges provide great convenient to people’slife produced，but its late disease also is people attaches great importance to the problem，vehicle dumpping is a common disease late road and bridge engineering. The stability ofabutment conical slope protection is a car bump is one of the most important influence factorsof cone type of stability of soil slope protection and determines the stability of conical slopeprotection，so seize the principal contradiction, for the study,carry out research work to thestability of the cone slope soil.First introduced in this paper cone slope engineering geology condition and indoor soiltest for cone slope soil samples selected. summarizes the soil slope stability analysis methodand development trend，analysis of factors influencing the cone slope soil mass stability of theinternal factors and external factors, and then using the finite element strength subtractionsimulation cone slope soil mass stability. the stability safety factor of soil influencing factorswere analyzed，and finally introduces the conical slope protection forms of instability andfailure of soil mass and soil protection method，and discusses on the cone effect on stability ofsoil slope soil construction of several problems.Through the above theoretical and experimental research work, found that:1.using the finite element strength reduction the cone slope soil stability, it is the effect.2.the cone slope of soil properties and morphological parameters, the smaller the slopeheight and slope angle in the form of cone slope, soil stability safety factor is the higher; coneslope soil bulk density parameter is smaller, cohesion and within the The greater the frictionangle, soil stability safety factor is higher, while the elastic modulus and Poisson’s ratio largeror smaller, soil stability safety factor almost unchanged.3.the finite element calculation process, the cone slope of meshing is more dense, thehigher the safety factor calculation accuracy; when the boundary conditions chosen as theslope angle to the left boundary of the distance and the top of the hill to the right end of thedistance from the boundary of a slope multiples, the safety coefficient higher calculationaccuracy. 4.the overall effectiveness of the cone slope soil protection law is superior to a singlevegetation protection law and engineering Protection Act.5.the the cone slope construction process, the soil material to select high strength, stableperformance, good permeability soil material; greater the degree of compaction of the soil, thehigher the safety factor; the new the cut slopes molding compaction method, soil can bodyachieve better compaction effect.Above conclsions,the high cone slope soil in highway and bridge engineeringdesign,construction,maintenance and other work,provide useful lessons.