本文選題：偽隨機(jī)流場法 + 堤壩滲流　； 參考：《水利水電技術(shù)》2017年09期

【摘要】：偽隨機(jī)流場法具有快捷、直接、精確有效等優(yōu)點,逐步成為堤壩滲漏探測的主流方法。利用該方法,在漏水區(qū)域、庫區(qū)無窮遠(yuǎn)段進(jìn)行高壓供電,庫區(qū)內(nèi)網(wǎng)格狀布置測點,可查找滲漏入水點。通過對各異常區(qū)域的區(qū)域面積、異常區(qū)域內(nèi)各測點的異常平均值以及對于嚴(yán)重滲漏的臨界值進(jìn)行計算,可判斷水庫滲漏通道和各滲漏點的滲漏量比例。此外,由于該方法快速便捷的特點,可以運用該方法進(jìn)行實時監(jiān)測。應(yīng)用于某混凝土面板堆石壩的探測結(jié)果表明,利用堤壩周邊已經(jīng)存在的監(jiān)測孔或在灌漿帷幕下游進(jìn)行鉆孔,進(jìn)行偽隨機(jī)電位差或者電流測試,可在無損條件下判斷滲漏來源和通道發(fā)育方向,檢測防滲處理效果。該方法可為堤壩滲漏監(jiān)測預(yù)警、擬定防滲處理方案提供依據(jù)。
[Abstract]:Pseudorandom flow field method has the advantages of rapidity, directness, accuracy and efficiency, and has gradually become the mainstream method for dam leakage detection. By using this method, the high voltage power supply is carried out in the infinite section of the reservoir area in the leakage area, and the measuring points are arranged in the reservoir area in a grid form, which can be used to find the leakage points. By calculating the area of each abnormal area, the abnormal average value of each measuring point and the critical value of serious leakage, the leakage ratio of reservoir leakage channel and each leakage point can be determined. In addition, the method can be used for real-time monitoring because of its fast and convenient characteristics. The detection results applied to a concrete face rockfill dam show that the pseudo-random potential difference or electric current is measured by using the existing monitoring holes around the dam or drilling holes downstream of the grouting curtain. The source of leakage and the developing direction of channel can be judged under the condition of non-damage, and the effect of anti-seepage treatment can be detected. This method can provide basis for seepage monitoring and early warning of dike and drawing up anti-seepage treatment scheme.
【作者單位】： 四川中水成勘院工程物探檢測有限公司;
【分類號】：TV698.12;TV871

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1 文豪軍;韓道林;;“偽隨機(jī)流場法"在恢復(fù)巖溶涌泉施工中的應(yīng)用[A];中國水力發(fā)電工程學(xué)會地質(zhì)及勘探專業(yè)委員會中國水利電力物探科技信息網(wǎng)2012年學(xué)術(shù)年會論文集[C];2012年

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