摘要
应用结合力学方法对目前我国采用较多的扁平单心圆大跨高速公路隧道的结构进行内力计算 ,分析不同的荷载工况 ,将墙角与仰拱的接合部位圆顺过渡以改善受力状态 ,经过理论计算 ,以衬砌各截面中的弯矩的最大值达到最小为优化目标 ,找到最优的隧道横断面形式。
Adopts the method of structural mechanics to carry through the analysis and calculate on the structural form of the large-span flat single circle highway tunnel that adopted by our country frequently and according to different load conditions and its combination.Then reformed the mechanical characteristic at the joint point betseen the sidewall and invert,and abopted circular arch transition on the sidewall corner to the invert.And through the theory calculation found an optimized traverse section of tunnel by direct search in accordance with the target that minimized maximal absolute value of the moment sections of the different sections of lining.
出处
《辽宁交通科技》
2004年第2期48-50,共3页
Liaoning Communication Science and Technology
