| 毛坝向斜核部岩溶水绕轴径流的同位素示踪分析 |
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| 关键词:isotopic tracing karst water round-axis flow Maoba syncline |
| 基金项目:铁道部“渝怀线圆梁山深埋特长隧道工程地质勘测” |
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| Isotopic Tracing Analysis of Round-Axis Flow of Karst Water in Maoba Syncline |
| Aiming at solving the problem of karst groundwater in Maoba syncline of Yuanliangshan Tunnel,this paper deals with the formation,supply and cycling 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 both the east wing and the west wing of Maoba syncline. The T_1 d aquifer is mainly affected by the vertical seeping,the P_2 w+c aquifer is affected by water from the upper strata and the west wing of the syncline,and the P_1 q + m aquifer is affected by the water from F_ 02 fault and the finite seepage along the unconformable side instead of having direct hydraulic relations with the upper strata. The direction of flowing water in the syncline is from the wings to the core. The velocity of flow is slow,and there exists no round-axis flow. |
| GAO Zhi-you,YIN Guan,JIANG Liang-wen,HOU Ming.2004.Isotopic Tracing Analysis of Round-Axis Flow of Karst Water in Maoba Syncline[J].Acta Geoscientica Sinica,25(2):165-169. |
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