不同补给条件下裂隙-管道介质间水流交换的示踪试验研究

发布时间：2018-04-18 13:30

  本文选题：岩溶含水系统 + 裂隙-管道介质　； 参考：《水文地质工程地质》2017年03期

【摘要】：为探究岩溶含水系统中裂隙-管道介质间不同补给方式下水流交换情况,在实验室内借助高精度摄像仪和有色示踪剂对其进行可视化观测。设计多组试验对单独补给裂隙、共同补给、裂隙和落水洞分开同时补给三种补给方式下水流交换情况进行探讨,从而定性地分析水流交换情况。试验结果表明:落水洞对裂隙水扩散的影响随裂隙距离落水洞的距离增大而减小;相较于共同补给情况,单独补给裂隙情况下落水洞对裂隙水扩散影响较大;在分开同时补给情况下裂隙与落水洞补给水量相同时,仅呈现裂隙对落水洞的单向补给。
[Abstract]:In order to investigate the water flow exchange between fissure and pipeline media in karst water-bearing system, a high precision camera and colored tracer were used to visualize the flow in the laboratory.In order to qualitatively analyze the water flow exchange under the three recharge modes of single recharge joint recharge fissure and falling tunnel separately and simultaneously recharge the water flow is studied in the design of multi-group tests in order to qualitatively analyze the water flow exchange.The experimental results show that the influence of falling tunnel on the diffusion of fissure water decreases with the increase of the distance from the fissure to the water hole, and the influence of falling tunnel on the diffusion of fissure water is greater than that of common recharge in the case of single recharge of fissure.In the case of separate recharge at the same time, only the one-way recharge of the fissure to the falling tunnel is presented when the recharge quantity of the fissure and the falling tunnel is the same.
【作者单位】： 河海大学水文水资源学院;
【基金】：国家自然科学基金(41172203) 国家大学生创新训练项目(201510294056)
【分类号】：P641.2
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本文编号：1768570