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中文摘要：
研究目的：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分布规律观测研究，得到春季不同地貌单元地层的恒温层位置和春季地层地温的分布规律。为地铁车站和区间隧道的空调工程的初步设计提供参考。研究结论：通过对西安地铁沿线9处观测孔的观测资料进行分析研究。结果表明：皂河一级阶地的恒温层在地表以下10m。恒温层温度为15℃；黄土梁洼地恒温层在地表以下9m，恒温层温度为17—18℃；渭河一级阶地恒温层在地表以下10m，恒温层温度为15．5℃；渭河三级阶地恒温层在地表以下9m，恒温层温度为16．5℃。
英文摘要：
Research purposes： Xi＇an is the first city to build the subway in loess in China, with a little information on the distribution law of the ground temperature in the subway buried depth range. The study was done on the long - term distribution law of ground temperature of the four typical geomorphic units along the Xihn subway to obtain the constant temperature strata position of the different geomorphic units and the distribution laws of the ground temperature in Spring for providing the reference to the air - conditioning design for the subway station and sectional tunnel. Research conclusions：The analysis and study were done on the observation information of nine observation points along the Xi＇an subway. The study results showed that the constant temperature strata position of the Zaohe first terrace was in the 10 meters under the ground surface with the temperature of 15℃, the constant temperature strata position of the loess ridge was in the 9 m under the ground surface with the temperature of 17 - 18℃, the constant temperature strata position of Weihe first terrace was in 10 meters under the ground surface with the temperature of 15.5℃, and the constant temperature strata position of Weihe third terrace was in 9 meters under the ground surface with the temperature of the 16.5 ℃
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