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首页> 外文期刊>The international journal on hydropower & dams >Innovative technique for leakage detection
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Innovative technique for leakage detection

机译：泄漏检测的创新技术

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Water seeps through most dams or their foundations in a controlled manner, sometimes by design, and as such, as long as the status quo remains, there is not a problem. However, at times dams deteriorate and seepage and leakages increase perhaps to the point of failure.rnIn many cases, warning signs are given before failure. These might include wet patches, increased drain flows, or new drain flows. Engineers working for the owners of reservoirs are then faced with a series of challenges, the primary one being, once the situation has been stabilized, to design remedial works. It may be possible, by lowering the water level or emptying the reservoir, to find the point of entry of water leaking through or under the dam, and it is usually possible to find the outlet. What is more difficult, without other extensive, often intrusive and costly investigations, is to find the actual route of any leakage through or under the dam. It is clearly necessary to try to establish the route so as to be able to limit the extent of any remedial works, whether it be grouting, repud-dling of clay Cores, diaphragm walling, and so on.
机译：水以受控的方式（有时是通过设计）从大多数大坝或其基础渗入，因此，只要保持现状，就没有问题。但是，有时大坝恶化，渗流和渗漏可能会增加到破坏的程度。在许多情况下，在破坏之前会给出警告标志。这些可能包括湿小块，增加的排水流量或新的排水流量。然后，为水库所有者工作的工程师面临一系列挑战，首要的情况是，一旦局势稳定下来，就必须设计补救工作。通过降低水位或排空水库，有可能找到通过大坝或在大坝下方泄漏的水的进入点，并且通常可以找到出口。没有其他广泛的，经常是侵入性的和昂贵的调查，更困难的是找到通过大坝或在大坝下的任何泄漏的实际路线。显然有必要尝试确定路线，以便能够限制任何补救工作的范围，无论是灌浆，粘土芯的重铺，隔膜墙等。

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