地面水—潜水—深层水（SPD）人工补给系统实验研究

【作者】 贺屹；

【导师】 李佩成；

【作者基本信息】 长安大学 ， 水文学及水资源， 2003， 硕士

【摘要】 地下水人工补给又被称作“地下水人工回灌”，是运用三水转化原理而开展的水资源调蓄工程。开展地下水人工补给特别是深层地下水的人工补给，不仅可以有效地增加和恢复地下水资源，而且具有防治地面沉降和地裂缝等地质灾害的作用。 深层地下水是指埋藏在浅层地下水(潜水)不透水底板以下的含水层中的地下水，与外部的水力联系较差，因而，深层地下水的人工补给只能主要采用深井回灌法，然而回灌井容易遭到淤堵。因此，试验要求有清水作为补给水源，而且还必须是廉价的。因此，根据国际旱区水环研究中心人工补给试验计划，本文研究了一种“S-P-D补给系统”方案(即地面水补给浅层地下水，经过滤后的浅层地下水再补给深层地下水)。通过室内试验，研究了此方案的渗流机理，分析了影响其补给效果的因素，探讨了回灌井的最佳结构形式，并在此基础上为在西安市进一步开展地下水人工补给初步设计了一套“S-P-D补给系统”方案。 本文的第一章对地下水人工补给现状、深层地下水补给的迫切性及存在问题进行了分析，阐释了“S-P-D补给系统”的构想，并对此作了简要说明；第二章，介绍了“S-P-D补给系统”的室内试验研究；第三章，通过对各种组合试验资料的整理与分析，研究了“S-P-D补给系统”的渗流机理，影响因素，回灌井的最佳结构形式；第四章，利用和直接井回灌法的比较试验，进一步说明“S-P-D补给系统”的利用价值；第五章，在试验的基础上，初步设计了一套符合西安市实际情况的“S-P-D补给系统”方案。 本论文的研究结果表明，“S-P-D补给系统”比常规的直接井回灌法，具有补给速度快，补给量多，不易淤堵等优点，为进一步开展地下水人工补给开拓一条行之有效的新途径。更多还原

【Abstract】 Manual recharge of groundwater is adjustment project of groundwater applying rule of three-water conversion. To carry out manual recharge of groundwater, especially deep groundwater, not only increase groundwater resource effectively, but also prevent ground sedimentation calamities.Deep groundwater is buried in aquifer under surfer groundwater, because of impermeable aquifer, has weak hydraulic relation with environment. Hence, deep recharging well must be used to recharge deep groundwater, but the method leads to accretion of recharging well easily, and large amount of clear recharging water, which must be low-priced. In this paper, according to manual recharging scheme of ICWE (International Center of Water resource and Environment), writer puts forward to project of "S-P-D" recharging system (surface water recharge surfer groundwater, surfer groundwater recharge deep groundwater after filtration). By indoor experiments, penetrating mechanism is studied, and analyses influence factors, discuss premium structure of recharging well. On the basis of studies, project of "S-P-D" recharging system is designed preliminarily to recharge groundwater in Xi’an.In this paper, chapter 1 introduces present condition of manual recharge of groundwater and necessity of recharge of deep groundwater, analyses existing problems. Writer puts forward to concept of "S-P-D" recharging system and makes brief illustration. Chapter 2 introducesproject of indoor experiment of "S-P-D" recharging system; Chapter 3 studies penetrating mechanism , influence factors and premium structure of recharging well of "S-P-D" recharging system; In chapter 4, based on comparison of "S-P-D" experiment and direct well recharging, utilization of "S-P-D" recharging system is verified; Chapter 5, on the basis of indoor experiments, writer designs project of "S-P-D" recharging system according to present condition of Xi’an.Studying results manifest that: compared with direct well recharging, "S-P-D" recharging system possess merits such as quick to recharge, big recharging amount, hard to accrete an so on. It provides a new effective way to carrying out manual recharge of groundwater.更多还原