管道-裂隙型岩溶地下水水位变化特征室内试验研究  

Laboratory Experimental Study on the Characteristics of Water Level Changes in Conduit-Fissure Karst Areas

作　　者：黄磊群 梁家珲 朱金海[3] 杨鹏帅 李天雨 HUANG Leiqun;LIANG Jiahui;ZHU Jinhai;YANG Pengshuai;LI Tianyu(Guangxi Road and Bridge Engineering Group Co.,Ltd.,Nanning 530200,China;Technical Innovation Center of Mine Geological Environmental Restoration Engineering in Southern Karst Area,Ministry of Natural Resources,Nanning 530028,China;Guangxi Modern Polytechnic College,Hechi 546300,China;Research Center of Geotechnical and Structural Engineering,Shandong University,Jinan 250061,China;Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西路桥集团建筑工程有限公司,广西南宁530200 [2]自然资源部南方石山地区矿山地质环境修复工程技术创新中心,广西南宁530028 [3]广西现代职业技术学院,广西河池546300 [4]山东大学岩土与结构工程研究中心,山东济南250061 [5]广西壮族自治区水利电力勘测设计研究院有限责任公司,广西南宁530023

出　　处：《贵州大学学报（自然科学版）》2024年第6期41-48,共8页Journal of Guizhou University:Natural Sciences

基　　金：南方石山地区矿山地质环境修复工程技术创新中心开放课题资助项目(NFSS2023022);2021年度广西高校中青年教师科研基础能力提升资助项目(2021KY1419);广西教育科学“十四五”规划2022年度专项课题资助项目(2022ZJY504)。

摘　　要：岩溶区管道-裂隙的发育特征影响着含水层水位面分布。可视化的物理模型,是研究不同试验条件下含水层的水位面特征,并揭示管道-裂隙发育特征影响规律的有效工具之一。为揭示不同裂隙组合、裂隙开度、裂隙发育程度、管道流量等因素对含水层水位面的影响规律,采用自主设计研发的管道-裂隙型双重导水介质物理模型,开展管道、裂隙发育特征对含水层水位面变化规律的影响研究。研究结果表明:在岩溶管道-裂隙发育地区,横向裂隙的主要导水特征是运输或传输,而竖向裂隙的主要导水特征是排泄;管道流量对含水层水位具有主控作用,而裂隙特征具有调控作用,且影响程度由大到小为横、竖向裂隙差异性、横向裂隙开度、裂隙发育程度、竖向裂隙开度;管道和裂隙发育特征对沿水流方向的水力坡降值产生影响,但裂隙特征的影响程度随管道流量的减小逐渐降低。研究结果能够为岩溶区管道、裂隙发育特征的揭露及区域地下水资源开发与保护提供参考。The development characteristics of conduit-fracture in karst areas affect the distribution of the aquifer water level surface.The visualized physical model is an effective way to study the water level surface characteristics of aquifers under different experimental conditions and to reveal the influence of conduit-fracture development characteristics.In order to investigate the impact of various fracture combinations,fracture aperture,degree of fracture development,conduit flow,and other factors on the water level of an aquifer,a self-designed and developed physical model of a conduit-fracture dual water-conducting medium was utilized to examine the effects of conduit and fracture development characteristics on the fluctuations in the water level of the aquifer.The results show that in the karst conduit-fracture development area,the main water-conducting characteristics of transverse fractures are transportation or transmission,while the main water-conducting characteristics of vertical fractures are excretion.The flow rate of the conduit has a significant impact on the water level of the aquifer,serving as the primary controlling factor.On the other hand,the fracture characteristics play a regulatory role with varying degrees of influence.The order of influence degree from large to small is as follows:the vertical conduit-fracture differences,the horizontal fracture aperture,the degree of fracture growth,and the vertical fracture aperture.The characteristics of conduit and fracture development impact the hydraulic gradient along the flow direction.However,the degree of influence of fracture characteristics decreases as the conduit flow rate decreases.The research results can provide a reference for understanding the development characteristics of pipelines and fissures in karst areas,as well as for the development and protection of regional groundwater resources.

关 键 词：岩溶区 管道-裂隙介质 地下水水位面 室内模型试验 裂隙发育程度 

分 类 号：P641.73[天文地球—地质矿产勘探]