高地温跨断层隧道隔热减震技术研究-《高速铁路技术》

文章信息/Info

Title:: A Study on Thermal Insulation and Shock Absorption for Tunnels with High Geo-temperature Crossing Fault

作者:: 魏杭杭; 庄永香; 邱枫博; 谢优; 崔光耀; 1. 北方工业大学, 北京 100144;
2. 莒南县园林环卫保障服务中心, 山东莒南 276600

Author(s):: WEI Hanghang; ZHUANG Yongxiang; QIU Fengbo; XIE You; CUI Guangyao; 1. North China University of Technology, Beijing 100144, China;
2. Junan County Garden Sanitation Suppoyt Service Center, Junan 276600, China

Keywords:: tunnel engineering|high geo-temperature|fault|shock absorption layer|damping layer|thermal insulation

摘要:: 为探索高地温跨断层隧道隔热减震技术，本文依托桑珠岭隧道工程，分析了初支与二衬之间设置减震层和阻尼层的隔热减震效果。研究结果表明：（1）在初支与二衬间设置减震层和阻尼层后，隧道整体温度下降，最高温度降低了3.26%；（2）隧道应力降低效果明显，最大主应力最大值减小了25.17%，最小主应力最大值减小了43.28%；（3）隧道安全系数有较大提升，最小安全系数提高了175.62%；（4）设置减震层和阻尼层可降低高地温跨断层隧道的温度，提高隧道安全性能。

Abstract:: In order to explore the thermal insulation and shock absorption for tunnels with high geo-temperature crossing fault, this paper, relying on the project of the Sangzhuling Tunnel, analyzes the thermal insulation and shock absorption effect of setting shock absorption layer and damping layer between the primary supporting and the inner lining. The results show that:(1) After setting the shock absorption layer and damping layer between the primary supporting and the inner lining, the overall temperature of the tunnel decreases, and the maximum temperature decreases by 3.26%. (2) The tunnel stress reduction effect is obvious, with the maximum value of the maximum principal stress reduced by 25.17% and the maximum value of the minimum principal stress reduced by 43.28%. (3) The tunnel safety factor has been greatly improved, with the minimum safety factor increased by 175.62%. (4) Setting the shock absorption layer and damping layer can reduce the temperature of the tunnel crossing fault with high geo-temperature and improve the safety performance of the tunnel.

备注/Memo:: 作者简介:魏杭杭(1997-),男,硕士研究生。基金项目:国家自然科学基金项目资助（52178378）、北京高等学校高水平人才交叉培养"实培计划"大学生科研训练计划深化项目（21XN217/016）、北京市大学生科学研究与创业行动计划项目（21XN216/006）引文格式:魏杭杭, 庄永香, 邱枫博, 等. 高地温跨断层隧道隔热减震技术研究[J]. 高速铁路技术,2021,12(6):26-31.WEI Hanghang, ZHUANG Yongxiang, QIU Fengbo, et al. A Study on Thermal Insulation and Shock Absorption for Tunnels with High Geo-temperature Crossing Fault[J]. High Speed Railway Technology, 2021, 12(6):26-31.