【作者】 高志友； 尹观； 蒋良文； 侯明；

【Author】 GAO Zhiyou YIN Guan JIANG Liangwen Hou Ming(Chengdu University of Technology, Chengdu, 610059; No.2 Reconnaissance and Design Institute of Railway Department, Chengdu, 610031; Guilin Institute of Technology)

【机构】 成都理工大学； 道部第二勘测设计院； 桂林工学院；

【摘要】 本文针对圆梁山隧道毛坝向斜段岩溶地下水问题,利用环境同位素及地下水氘过量参数示踪原理,探讨了该区深层岩溶水的形成、补给、循环交替等信息。结果表明:向斜核部的深部承压水,同时接受向斜东翼和西翼大气降水的补给.T₁d含水层,受垂直入渗的影响较大;P₂w+c含水层,受上覆地层水和向斜东翼层间水入渗的影响明显;P₁q+m含水层与上覆地层含水层不存在直接的水力联系,但受到来自F₀₂断层和不整合面有限渗流的影响。向斜核部水的渗流方向是从两翼指向核部,且流速较慢,不存在绕轴迳流。更多还原

【Abstract】 Aiming at the problem of karst groundwater in Maoba Syncline of Yuanliangshan Tunnel, this paper discussed the forming, supplying and cycling information of the water by using the tracing theory of environmental isotope and deuterium excess (d-excess) parameter of groundwater. The result shows that the deep confined karst water is supplied by the water from the both east wing and west wing of Maoba Syncline. The Tid aquifer is mainly influenced by vertical seeping; the P2w+c aquifer is influenced by water from upper stratum and west wing of the syncline; the Pqq+m aquifer has no direct hydraulic relations with upper stratum, but is influenced by the water from F02 fault and the finite seepage along unconformable side. The direction of flowing water in the syncline is from the wings to the core, and there is no round-axis flow with slow velocity of flow.更多还原