Stability Analysis Of High Earth-retaining Wall And Optimized Alternative

Earth-retaining wall is common in earth-retaining structures. In this article, the maximum height of the wall reaches 28m, actually an earth dam. In the mountainous areas of Fujian, earth-retaining structures are commonly used. But it is still rare to have such a high wall, making it technically complicated.This project is in Fuding No.6 Middle School, where a 400m track and a sports ground is going to be built by excavating the earth and constructing an earth-retaining wall. The geological conditions are fairly good. The original scheme was a gravity earth-retaining wall, with a maximum height of 28m. Rigid limit balance method is used in the structure calculation, and finite element method is used for stability analysis. Due to the defects of this scheme, a new improved scheme is proposed, and a reinforced concrete frame is used to replace the original gravity wall. Large space has been created by using the reinforced concrete frames to retain the earth, including a semi-underground area covering 7000m2, an indoor sports ground, an indoor stadium and an outdoor sports groundr. The new improved scheme is unique, with multi-functions, which provides a brand new way of high earth-retaining wall optimization.Earth pressure theory and reinforced concrete theory are used in the practice of design of high earth-retaining wall in Fuding No.6 Middle School. The stability analyses of the structure and the cost estimates for both schemes have been carried out. By comparison, the new improved scheme is reasonable with a good economic index.