陕西省恒温层深度主要影响因素及其估算  

Influencing factors of constant-temperature layer depth and its estimation in Shaanxi Province

作　　者：周阳 张卉 江星辰 许泽润 王克 穆根胥 ZHOU Yang;ZHANG Hui;JIANG Xingchen;XU Zerun;WANG Ke;MU Genxu(Shaanxi Institute of Geological Survey,Xi’an 710054,China;Shaanxi Geological Survey Center of Hydrogeology,Engineering Geology and Environmental Geology,Xi’an 710068,China;Zhongsheng Environmental Technology Development Co,Ltd,Xi’an 710000,China)

机构地区：[1]陕西省地质调查院,西安710054 [2]陕西省水工环地质调查中心,西安710068 [3]中圣环境科技发展有限公司,西安710000

出　　处：《中国地质调查》2019年第3期81-86,共6页Geological Survey of China

基　　金：陕西省公益性地质调查专项“陕西省大中型城市浅层地热能调查评价(编号:20130202)”;陕西省公益性地质工作项目“陕西省浅层地热能赋存规律及开发利用关键技术研究(编号:20170201)”;中国地质调查局“陕西省关中盆地地热资源调查评价(编号:1212010535416)”;“陕西省主要城市浅层地温能开发区1∶5万水文地质调查(编号:12120114086501-15)”项目联合资助

摘　　要：恒温层深度的预测与地热能开发利用、地下空间建设等密切相关,陕西省区域恒温层的研究工作进展较慢。通过探讨恒温层深度的影响因素认为:导热系数与恒温层深度呈弱负相关;地表与大气间表面传热系数与恒温层深度呈弱正相关;大气温度年振幅与恒温层深度呈正相关;导温系数与恒温层深度呈明显的正相关。介绍并验证了一种土壤恒温层深度的计算方法,通过该方法,计算了全省不同地貌单元恒温层深度的理论值。全省恒温层深度介于10.5~23.8m之间:陕北地区恒温层深度为10.5~23.8m;关中盆地恒温层深度为11~17.4m;陕南地区恒温层深度为11.7~18.6m。该研究系统地划分了陕西省区域恒温层的深度范围,为陕西省“绿色”追赶超越政策的实施做出贡献。The prediction of the constant-temperature layer depth is closely related to geothermal energy development and underground space construction. Progress of research on regional constant-temperature layer in Shaanxi Province is relatively slow. This paper discusses the influencing factors of the constant-temperature layer depth and the results show that there is an inverse correlation between the thermal conductivity and the constant-temperature layer depth. And the surface heat transfer coefficient between the surface and the atmosphere is positively correlated with the constant-temperature layer depth. Besides, the annual amplitude of the atmospheric temperature is positively correlated with the constant-temperature layer depth. The thermal conductivity coefficient and the constant-temperature layer depth showed a significant positive correlation. This paper describes and validates a method for calculating the constant-temperature layer depth. And the authors calculated the theoretical value of constant-temperature layer depth for different geomorphic units by using this method. The constant-temperature layer depth is between 10.5 m and 23.8 m for the whole province and is between 10.5 m and 23.8 m in northern Shaanxi Province, with 11~17.4 m in Guanzhong Basin and 11.7~18.6 m in southern Shaanxi Province. The depth range of the regional constant-temperature layer in Shaanxi Province has been systematically divided in this research and this paper has contributed to the implementation of Shaanxi’s “Green” Catch-up and Transcendent policies.

关 键 词：恒温层 导温系数 数理统计 深度 陕西省 

分 类 号：TK521.2[动力工程及工程热物理—热能工程] P314.3[天文地球—固体地球物理学]