Optimization Design Model and System of Landslide Anti-slide Pile

摘要

Anti-slide pile, which can be classified mainly into two categories: normal anti-slide pile and anchorage pile, is the most popular way to treat landslides in China. Presently, in the treatment of landslide disaster, the design parameters of anti-slide pile are depended mainly on experience or hand trail calculation. However, this has proved to be conservative and led to enormous waste. Based on the basic design theory of normal anti-slide pile and anchorage pile and the consideration of overall cost as objective function, an optimization model is built in the paper. Then, nonlinear optimization and genetic algorithm are applied to develop the anti-slide pile optimization design system, which optimizes the mainly design parameters and minimizes the cost finally. An appropriate landslide in the tenth bid section K215+440～K215+594, which is also called JiangLin section in Yunan xianglin road, is adopted to test the system. The application results indicate that the optimization design can highly reduce the direct investment and bring notable economic benefit compared to the original project.