冲击试验在堤坝渗漏通道探测中的应用研究

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摘要利用冲击试验测量平面中某一点渗透系数的特点，第一次将冲击试验应用到堤坝渗漏通道的探测的工程应用之中。以岭澳水库工程为例，通过一系列冲击试验的测量，判断得到桩号0+275～295区间的坝段存在渗漏通道。运用温度示踪以及电导率探测的方法，分析得到渗漏通道的位置范围，与冲击试验测量结果基本一致。对0+275～295坝段区域进行灌浆处理以后，通过记录水库库水位及坝后量水堰流量变化，发现灌浆效果明显，证明冲击试验的测量结果的正确性。冲击试验在寻找渗漏通道以及对土石坝进行检修加固等方面有明显的实际工程意义和广阔的应用前景。

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关键词 ：水利工程, 渗透系数, 渗漏通道, 冲击试验, 温度场

Abstract：It is the first time to detect the leakage channel of the dam by slug test；for that the slug test is used to get the permeability coefficient of a point. Based on the Ling?ao Reservoir project，the leakage channel of the dam is detected at the zone pile No. 0+250–295 after a series of slug tests. Using the method of temperature tracer method and detecting of electrical conductivity，it is found that the result is basically the same with the result gotten by slug test. After grouting to the zone of pile No. 0+275–295，there is an obvious effect through the reservoir water level and the flow rate of dam weir. So it demonstrates the correctness of the measuring result of slug test. There is great practical significance and broad application prospects for the application of slug test to detect the leakage passages and overhaul reinforcement of earth-rock dam and riverbank.

Key words： hydraulic engineering permeability coefficient leakage passages slug test temperature field

收稿日期: 2012-10-10

引用本文:

陈建生1，2，高彬1，厉焘3，何文政1. 冲击试验在堤坝渗漏通道探测中的应用研究[J]. 岩石力学与工程学报, 2013, 32(5): 994-1000.
CHEN Jiansheng1，2，GAO Bin1，LI Tao3，HE Wenzheng1. APPLICATION STUDY OF LOCATION DETECTION OF LEAKAGE PASSAGES IN DAM BY SLUG TEST. , 2013, 32(5): 994-1000.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/I5/994

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