大临铁路区域活动断裂地热特征与地质选线研究
Research on Geothermal Characteristics and Geological Route Selection of Active Faults in Dali-Lincang Railway Area
赵福玉 1张蕊 1刘伟 1杜宇本2
作者信息
- 1. 中铁二院工程集团有限责任公司,四川 成都 610031
- 2. 西南交通大学,四川 成都 6117561
- 折叠
摘要
大理至临沧铁路跨过澜沧江后穿行于云县—临沧花岗岩体,地形地貌和地质条件复杂,铁路长大隧道设置不可避免,工程艰巨,深大活动断裂及高地温热害控制线路方案.结合白石头隧道地质勘察,分析了区域花岗岩体的多期次叠加侵入和形成机理,以及凤庆-云县—临沧水热活动带内活动断裂、地热分布特征和地热成因,开展高原艰险山区铁路综合地质选线研究,成功避开了区域地热异常带,推荐了常温带作为隧道线路方案,经过施工验证,推荐方案合理、可行.
Abstract
Dali-Lincang Railway crosses the Lancang River and passes through the Yunxian Lincang granite body.The terrain,topography,and geological conditions are complex,and the installation of long tunnels on the railway is inevitable.The project is arduous,and the control line scheme for deep and large active faults and high temperature thermal hazards is proposed.Based on the geological survey of the Baishi Tunnel,this study analyzed the multi-stage superimposed intrusion and formation mechanism of the regional granite rock mass,as well as the active faults,geothermal distribution characteristics,and geothermal genesis in Fengqing-Yun County-Lincang hydrothermal activity zone.A comprehensive geological route selection study was carried out for railways in difficult mountainous areas on the plateau,successfully avoiding the regional geothermal anomaly zone.The normal temperature zone was recommended as the tunnel route plan.After construction verification,the recommended plan was reasonable and feasible.
关键词
大临铁路/活动断裂/高地温/地质选线Key words
Dali-Lincang Railway/active fault/high ground temperature/geologic route selection引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据