摘要
基于边坡极限平衡的简化Bishop法,考虑土钉的加固作用,推导了土钉墙安全系数计算公式;然后利用禁忌搜索算法(TSA)对北京某大厦基坑土钉支护结构最危险滑动面的位置及相应最小安全系数进行了搜索。计算结果表明:TSA法的搜索性能要优于简单遗传算法且本文土钉墙简化Bishop法克服了瑞典条分法的不足,具有较高的计算精度。
Firstly,based on the principle of simple Bishop limited equilibrium method and by considering the consolidation of soil-nail,a new computation formula of stability safety factor for the soil-nail wall is presented. Then,the critical slip surface correspondent with its minimal safety factor of a building foundation pit with soil-nail braced structure in Beijing has been carried out by using the Tabu search algorithm （TSGA）. The calculation results show that： the efficiency of TSA is better than that of Simple Genetic Algorithm and the simple Bishop method of soil-nailed wall overcomes the deficiency of Swedish slice method and has better computation precision.
出处
《科技通报》
北大核心
2009年第3期320-324,327,共6页
Bulletin of Science and Technology
关键词
土钉墙
内部稳定性分析
禁忌搜索算法
soil-nailed wall
interior stability analysis
tabu search algorithm
