| 唐佑,罗治勇,闫钰凡,张林,尹应德,陈江.第四系孔隙水分布区地下建筑周围地温分布模拟研究——以北京地区为例[J].贵州地质,2025,42(3):374-380 |
| 第四系孔隙水分布区地下建筑周围地温分布模拟研究——以北京地区为例 |
| Modeling Ground Temperature Distribution Around Underground Buildings in the Quaternary Pore Water Distribution Area——Beijing Region is taken as an Example |
| 投稿时间：2025-05-29 |
| DOI： |
| 中文关键词: 地下建筑 地下城市热岛 地温分布 COMSOL |
| 英文关键词:Underground building Underground urban heat island Ground temperature distributions COMSOL |
| 基金项目:湖南省自然科学基金资助项目(2023JJ60570) |
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| 中文摘要: |
| 城市地下热岛日趋严重，对生态、人文环境等造成威胁的同时也是浅层地热能资源回收的机遇。然而，地下建筑作为地温升高的主要原因之一，其周围的地温分布及其影响机制尚未充分研究。为此，本研究以中国北京水文地质条件为例，模拟了不同尺寸的地下建筑及水力梯度对其周围地温的影响。结果表明:埋深是主要控制因素，每增加1 m使垂直和水平热影响范围分别扩大130 m和371 m；埋宽增加主要扩大垂直影响，对水平范围影响微弱；当热量扩散至地下水位后，地下水的平流使水平影响增强，且与水力梯度成正比，而垂直影响略有减弱，埋深18 m时水平影响距离超48 m。本研究可为地下空间开发与地热利用提供重要依据。 |
| 英文摘要: |
| Ecological and human environments are increasingly threatened by the severe Subsurface Urban Heat Island effect, which simultaneously offers opportunities for shallow geothermal energy recovery.However, a key factor driving ground temperature change, both the dynamic effects of underground buildings on ground temperature and their spatiotemporal distribution remain poorly understood. Against this background, this study simulates the thermal influence of different underground buildings dimensions and hydraulic gradients under the hydrogeological conditions of Beijing, China. The results demonstrated the underground building depth dominates thermal propagation, with every 1 m increase expanding vertical and horizontal influence zones by 1.30 m and 3.71 m respectively. The increase in underground building width primarily expands vertical thermal influence while exhibiting minimal effect on horizontal range. Upon heat diffusion reaching the groundwater table, advective groundwater flow significantly enhances horizontal thermal impact in proportion to hydraulic gradient, while moderately reducing vertical penetration. At an underground building depth of 18 m, the horizontal influence distance exceeds 48 meters.the study will provide critical insights for optimizing underground space development and geothermal energy harvesting in similar hydrogeological settings. |
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