| 模拟温泉形成的一种管道渗流实验 |
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| 引用本文： | 郭帅,周训,吴旸,方斌,赵敬波,刘东林.模拟温泉形成的一种管道渗流实验[J].现代地质,2012,26(3):620-626. |
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| 作者姓名： | 郭帅 周训 吴旸 方斌 赵敬波 刘东林 |
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| 作者单位： | 地下水循环与环境演化教育部重点实验室(中国地质大学(北京)),北京100083;中国地质大学水资源与环境学院,北京100083 |
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| 基金项目： | 中国地质大学(北京)教学实验室(中心)开放基金，中国地质大学(北京)大学生创新性实验计划重点项目，北京市大学生科学研究与创业行动计划项目，国家自然科学基金 |
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| 摘 要： | 自然界中温泉形成的循环机制比较复杂,前人的实验模型研究很少有报导。根据断裂-深循环型温泉的特点可以设计一个简易实验装置,对温泉的形成进行模拟实验。实验采用充满砂的半圆弧形圆管实验装置,开展不同水温下热水循环的模拟实验,以便了解地下热水循环过程温泉流量的影响因素。利用室温实验计算出实验用砂的渗透系数K的范围在50.59～57.94 m/d。实验结果表明,温泉流量除与水头差、介质渗透系数和截面积呈正比例关系外,还随温度增大而增大。温泉形成过程是伴随能量转换的地下水循环过程,地下水从深部热源获得的热量使其温度升高,粘滞性降低,导致其流量增大。利用河北北部和广西东南部温泉的流量、温度数据进行验证,进一步分析了实验结果的合理性。
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| 关 键 词： | 温泉 模拟实验 温度 流量 地下热水 |
A Modeling Experiment of Seepage in a Pipe for the Formation of a Hot Spring |
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| GUO Shuai
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ZHOU Xun
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WU Yang
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FANG Bin
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ZHAO Jing-bo
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LIU Dong-lin.A Modeling Experiment of Seepage in a Pipe for the Formation of a Hot Spring[J].Geoscience——Journal of Graduate School,China University of Geosciences,2012,26(3):620-626. |
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| Authors: | GUO Shuai ZHOU Xun WU Yang FANG Bin ZHAO Jing-bo LIU Dong-lin |
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| Institution: | 1,2(1.Key Laboratory of Groundwater Circulation and Evolution(China University of Geosciences,Beijing),Ministry of Education, Beijing 100083,China;2.School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | The circulation mechanism in the formation of hot springs is very complicated in nature,and previous studies have reported little about the experimental models of hot springs.By designing a simple experimental apparatus based on the characteristic of fault-deep circulation type of hot springs,the modeling experiment is conducted.A semicircular steel tube filled with sand is used to carry out the modeling experiment of hot water circulation under different temperature conditions to examine the influencing factors of the discharge in that procedure.The calculated coefficient of permeability of the experimental sand ranges from 50.59 to 57.94 m/d under the condition of room temperature.The results also show that the discharge of the hot spring increases with temperature,except for its positive correlation with water head difference,coefficient of permeability of the media and the cross-sectional area.The procedure of hot spring formation is the groundwater circulation with energy conversion,and the accepted heat from deep heating source in groundwater leads to increasing of temperature and the change in temperature causes the decline in kinetic viscosity.As a result,the discharge rate increases.The discharge and temperature data from hot springs in northern Hebei and southeastern Guangxi are employed to validate the experiment results and the reasonable results are further analyzed. |
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| Keywords: | hot spring modeling experiment temperature discharge thermal groundwater |
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