Stability Analysis Of Gravity Retaining Wall Based On Reinforced Technique Of Frame With Prestressed Anchors

In recent years, with the rapid development of the country’s westerndevelopment strategy to continue to promote the highway, municipalengineering, urban infrastructure, in the process of building, the slopeengineering is the most common form of engineering. Slope instability slumpseriously jeopardize the life safety and loss of state property, in order toensure the safety of the normal use of buildings, highways and railways, theslope reinforcement governance has become an important infrastructure forour country. Gravity retaining wall has been widely used in China’s civilconstruction of retaining structures. But retaining walls are generally rely onweight to achieve their own stability, retaining wall can be made into variousforms to satisfy different needs, however, still amounted to less than idealresults. In the loess region, a large number of gravity retaining wall due tochanges in the conditions of use due to continuous rainfall makes the wallappear instability phenomena.The framework prestressed anchor is ageotechnical anchoring technique based on a new type of supportingstructure. Widely used in the slope supporting the surrounding rockanchoring, cavern reinforcement project. It has low cost, light weight, highlyconstrained small, slope disturbance and control the deformation, etc.. Thispaper firstly presents the use of the framework of prestressed anchor toreinforce the instability of gravity retaining wall. Reinforced retaining wallsupporting structure is a new combination of mainly composed of four partsof the framework, gravity retaining wall anchor and wall soil mass. At thispoint, the gravity retaining wall is to maintain the overall stability of thewall through the wall of the weight and anchor prestressed. Research done inthis article are as follows:(1)Prestressed Anchor structure supporting the model, this paper presentsthe instability of gravity retaining wall reinforcement technique based on theframework of prestressed anchor retaining structure model.(2)It is a very difficult problem to Value for the earth pressure behind theretaining wall after the reinforcement of technique of frame with prestressedanchors. Due to the presence of anchor changes the distribution of earthpressure on retaining walls reinforced at this time, the earth pressure distribution is similar to the reinforced earth retaining walls. According tothis characteristic, this paper presents selected similar to the reinforced soilretaining wall earth pressure distribution model. Through analysis to goodeffect.(3)Based on the limit equilibrium theory, the theory of anti-gravityretaining walls on the instability analysis of theoretical calculations,obtained after the reinforcement of the frame anchored gravity retaining wallslip box anchor reinforcement and stability against overturning safety factor.A numerical example to verify the safety of gravity retaining wall effect isvery obvious after the reinforcement of the box anchor. When the gravityretaining wall height of about8m, the anchor prestress for each additional50kN, the stability factor of safety level of increase to reach40%-50%, fromthe engineering application of economic and security aspects to consider,anchor prestress imposed120kN is the most optimized. A retaining wall forthe height and soil parameters, you can refer to this study, analysis andprocessing.