摘要
为深入研究隧道衬砌背后空洞对其支护结构力学性能的影响,依托某高速公路隧道,利用室内模型试验、数值模拟手段分别对其支护结构应力进行分析,并对两种手段的研究结果进行了对比分析。研究结果表明,当隧道拱顶、右侧拱腰部位衬砌背后存在空洞时,对应部位的支护结构最先出现裂缝,且产生较大的弯矩值及衬砌应力;隧道衬砌背后空洞将减弱其支护结构与围岩的相互作用,严重影响其力学特性。
To further studying the influence of tunnel lining back cavity on the mechanical performance of its supporting structure, relying on a highway tunnel, this paper respectively analyzed the supporting structure stress using the indoor model test, numerical simulation method. It also compared and analyzed the research results of two kinds of means, which provided some references for the similar engineering in the future.
出处
《山西交通科技》
2016年第5期60-63,共4页
Shanxi Science & Technology of Transportation
基金
山西省交通运输厅科研项目(2013-1-3
2015-1-18)
关键词
隧道衬砌背后空洞
支护结构
力学性能
影响性
tunnel lining back cavity
supporting structure
mechanical performance
influence
