施工技术2015年8月下 98CONSTRUCTIONTECHNOLOGY第44卷第16期 DOI:10.7672/sgjs2015160098 玻化微珠保温砂浆隔热层在寒区隧道应用可行性研究*
季海峰，李珠，刘元珍，许家文 （太原理工大学建筑与土木工程学院，山西太原030024） [摘要］针对寒区隧道当前广泛采用的保温隔热材料各方面的缺陷，提出新型无机玻化微珠保温砂浆在寒区隧道 保温隔热中的应用。
结合玻化微珠保温砂浆的物理力学性能，探讨其在寒区隧道应用的可能性，初步提出寒区隧 道玻化微珠保温砂浆保温隔热层的设置方式。
基于传热学的基本理论，推导得出玻化微珠保温隔热层设置厚度的 计算方法。
通过有限元计算分析，对寒区隧道采用玻化微珠保温砂浆隔热层保温效果以及隧道施工因素和初始地 温对隧道温度场的影响进行分析。
结果表明玻化微珠保温砂浆具有良好的保温隔热性能，验证了其在寒区隧道实 施的可能性。
[关键词]隧道工程；玻化微珠保温砂浆；多年冻土；数值分析；施工影响 [中图分类号】TU528[文献标识码】A[文章编号]1002-8498（2015)16-0098-06 FeasibilityStudyofThermalInsulationGlazedHollowBeadMortar UsedasInsulationLayerin ColdRegionTunnels Ji Haifeng,Li Zhu,Liu Yuanzhen，Xu Jiawen （CollegeofArchitecture and CivilEngineering，TaiyuanUniversityofTechnology，Taiyuan，Shanxi030024,China） Abstract;According to the defects of various aspects of thermal insulation material widely used in cold regions tunnel，new inorganic thermal insulation glazed hollow bead mortar used in thermal insulation of insulation glazed hollowbeadmortar，the possibility of application in cold regions tunnel is studied， the laying position of thermal insulation glazed hollow bead mortar insulation layer for tunnel in cold region is also initially proposed. Based on the basic heat transfer theory，the calculation method of the thermal insulation glazed hollow bead insulation layer thickness is obtained. Through the finite element analysis， heat preservation effect of glazed hollow bead mortar insulation layer is researched，while the effects of the tunnel construction factors and initial ground temperature to the tunnel temperature field are also analyzed.The results showed that the thermal insulation glazed hollow bead mortar has good heat insulation performance，verified the possibility of implementationin the cold region tunnels. Key words:tunnels; thermal insulation glazed hollow bead mortar; permafrost; numerical analysis; tunneling effect 0引言性能[。
随着我国工程基础设施建设的不断完善以及针对上述问题，国内外学者进行了多方面的深 当前国内经济的快速发展，我国寒区公路隧道建设人研究，在隧道衬砌结构中铺设隔热层成为当前解 得到了空前快速的发展。
然而寒区隧道的建...
