作　　者： ; (赵占厂）;

机构地区： 路桥集团桥梁技术有限公司北京100102

出　　处： 《岩土工程学报》 2005年第11期1291-1295,共5页

摘　　要： 针对黄土公路隧道常采用模筑混凝土强支护型式,利用数值仿真技术分析了衬砌混凝土强度、厚度和考虑龄期与否对围岩及隧道衬砌结构的影响。研究表明:混凝土强度提高对围岩和衬砌结构影响不大;存在一个“合理经济”的衬砌厚度;仿真计算中是否考虑混凝土龄期对衬砌轴力影响较大。 With regard, to the strong support type of cast-in-place concrete often adopted in loess highway tunnels, the influences of strength, thickness and age of concrete on surrounding rock and lining structure were analyzed by use of numerical imitation technology. The results showed that the influences of concrete strength on the soil and lining were not great, there was rational and economical thickness of the lining, and the age of concrete had large effect on axial force of lining.

关 键 词： 黄土公路隧道 衬砌 性状分析

领　　域： [建筑科学]