基于横断面几何参数的高速铁路隧道预制拼装二次衬砌分块设计方法
On Segmenting Design Method of Prefabricated Assembled Secondary Lining for High-speed Railway Tunnels Based on Cross-section Geometric Parameters
周晓军1
作者信息
- 1. 西南交通大学土木工程学院,成都 610031
- 折叠
摘要
基于设计行车速度为300～350 km/h的单洞双线高速铁路隧道建筑限界和衬砌内轮廓的技术指标,分析和提出钻爆法隧道二次衬砌预制块划分的设计方法,给出确定预制拼装二次衬砌预制块几何参数的计算公式,并结合算例对计算公式进行验证,同时还提出高速铁路隧道二次衬砌预制块的通缝和错缝拼装方法.
Abstract
Based on the technical indicators of the construction clearance and inner lining profile for single-tube double-track high-speed railway tunnels with design speeds of 300-350 km/h,a design method for segmenting pre-fabricated assembled secondary lining blocks in drill and blast tunnels is analyzed and proposed.Calculation formu-las for determining the geometric parameters of prefabricated assembled secondary lining blocks are presented and verified with examples.Additionally,the assembly methods of prefabricated secondary lining blocks with straight joint and staggered joint high-speed railway tunnels are proposed.
关键词
高速铁路隧道/预制拼装二次衬砌/几何参数/设计方法/拼装方法Key words
High-speed railway tunnel/Prefabricated assembled secondary lining/Geometric parameters/Design method/Assembly method引用本文复制引用
基金项目
国家自然科学基金(51378436)
四川省重点研发计划(2019YFG001)
出版年
2024
NETL
NSTL
万方数据