西安地铁沿线地层地温夏季分布规律观测研究  

Distribution law of the formation geothermal in summer along Xi’an subway

作　　者：杨智国[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043

出　　处：《西安科技大学学报》2012年第5期610-616,共7页Journal of Xi’an University of Science and Technology

基　　金：陕西省教育厅科研计划资助项目(2010JK667)

摘　　要：西安是我国西部黄土地区首个修建城市地铁的城市,但是缺少地铁埋深范围内的地层温度分布规律的资料。通过对西安地铁沿线4个典型地貌单元的土壤长期地温观测研究,得到夏季不同地貌单元地层的恒温层位置和夏季地层地温的分布规律。观测结果表明:皂河一级阶地的恒温层在地表以下10.5 m,恒温层温度为15.3℃;黄土梁洼地恒温层在地表以下16.1 m,恒温层温度为17.0℃;渭河一级阶地恒温层在地表以下10.5 m,恒温层温度为15.6℃;渭河三级阶地恒温层在地表以下10.5 m,恒温层温度为16.4℃.研究结果可为地铁车站和区间隧道的空调工程的初步设计提供参考。Xi＇ an is the first city which built the subway in loess in China, but there is a lack of the information of distribution law of the formation geothermal. Through study on the long-term geothermal of four typical geomorphic units along Xi＇ an subway, obtained the constant temperature strata position of different geomorphic units formation and the distribution law of the formation geothermal in summer. The observation results showed that the constant temperature strata position of Zaohe first terrace is 10.5 meters under the surface and the temperature of the constant temperature strata position is 15.3℃, the constant temperature strata position of loess ridge and depression is 16.1 meters under the surface and the temperature of the constant temperature strata position is 17.0 ℃, the constant temperature strata position of Weihe first terrace is 10.5 meters under the surface and the temperature of the constant temperature strata position is 15.6 ℃, and the constant temperature strata position of Weihe third terrace is 10.5 meters under the surface and the temperature of the constant temperature strata position is 16.4 ℃. The results can provide reference for preliminary design of air conditioning engineering in the subway station and running tunnel.

关 键 词：西安地铁 地温 恒温层 分布规律 

分 类 号：U231.4[交通运输工程—道路与铁道工程]