Potential leakage at the Khersan 3 Dam Site, Iran: a hydrogeological approach
Potential leakage at the Khersan 3 Dam Site, Iran: a hydrogeological approach
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DOI：
10.1007/s10064-006-0079-5
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发表时间：
2007-07
影响因子：
4.2
通讯作者：
H. Karimi;Toraj Keshavarz;Z. Mohammadi;E. Raeisi
中科院分区：
文献类型：
--
作者：
H. Karimi;Toraj Keshavarz;Z. Mohammadi;E. Raeisi
本文讨论了对伊朗南部扎格罗斯地区Khersan 3号坝址的调查，该坝址位于Rig、Shorom和拉基背斜交汇处。Asmari石灰岩是坝址及其水库区域的主要含水层系统。下Asmari单元内的泥灰岩带形成了三个承压次含水层，上面覆盖着一个非承压次含水层。蓄水将与Asmari石灰岩直接接触，因此可能通过现有岩溶特征发生渗漏。由于自流地下含水层的补给区高于水库的正常水位，预计不会通过自流地下含水层直接渗漏。然而，当潜水次含水层中的水头随着大坝的建造而升高时，可能发生渗漏并进一步发展岩溶作用。
The paper discusses the investigations into the Khersan 3 Dam site in the Zagros Zone, southern Iran, where the Rig, Shorom and Laki Anticlines meet. The Asmari Limestone is the main aquifer system in the area of the dam site and its reservoir. Marly bands within the Lower Asmari Unit create three confined sub-aquifers under artesian pressure overlain by one unconfined sub-aquifer. The impounded water will be in direct contact with the Asmari Limestone hence leakage may occur through existing karst features. As the recharge zone of the artesian sub-aquifers is higher than the normal water level in the reservoir, no direct leakage through the artesian sub-aquifers is anticipated. However, when the water head in the unconfined sub-aquifer rises with the construction of the dam, leakage may occur and further karstification develop.