【摘要】 为了分析洞室涌水量,本文运用数值模拟技术建立了研究区地下水的三维数值模型。在模型中综合考虑了基岩裂隙含水介质渗透系数(K)的各向异性,应用水均衡计算分析了不同Kv/Kh比值条件对洞室涌水量的影响。结果表明:随着Kv/Kh比值增加,洞室涌水量也相应有所增加;Kv/Kh比值的变化对洞室涌水量的变化趋势影响不明显;不同Kv/Kh比值条件下,初期涌水量平均增加速率较为一致,而后随着时间的推移,增加速率出现分异,Kv/Kh比值越大,涌水量增加速率越小;运营期Kv/Kh比值的增加对涌水量的影响较施工期明显。更多还原

【Abstract】 To analyse the hydraulic discharge of groundwater sealed caverns,the study area as a three-dimensional groundwater flow model using numerical simulation method is created.In the model,the hydraulic conductivity anisotropy of fissure aquifer medium is comprehensively considered and the influence of different Kv /Kh ratios to the hydraulic discharge of the caverns through analyzing water equilibrium is analyzed.The results reveals that the hydraulic discharge of the caverns increases with the increase of the Kv /Kh ratio;the variation of the Kv /Kh ratio has little effect to the trend of the hydraulic discharge;under different Kv /Kh ratio conditions,the average increase rate of hydraulic discharge in early time is more consistent.Then,the increase rate of different Kv /Kh ratio conditions becomes different.The larger the Kv / Kh ratio is,the smaller the average increase rate of hydraulic discharge is.The influence of Kv /Kh ratio increasing in operation period is more obvious than that in excavating period.更多还原