Logan Martin Dam is owned and operated by Alabama Power Company. Since the completion of the dam in 1964, control of the underseepage through the karstic foundation has been a continuous challenge. Several attempts have been made to establish a cutoff through the foundation by grouting. However, recent hydrogeological investigations indicate that the original and the remedial curtains did not extend deep enough to intercept the predominate seepage paths. The original curtain extended to an average depth of 30 meters (100 feet) into bedrock. Highly permeable zones have been found at depths greater than 122 meters (400 feet). This paper presents the drilling and grouting techniques utilized for the most recent grouting program.
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机译：洛根·马丁大坝（Logan Martin Dam）由阿拉巴马州电力公司（Alabama Power Company）拥有和运营。自1964年大坝建成以来，通过岩溶基础控制渗流一直是一项持续的挑战。已经进行了多种尝试，以通过灌浆在地基上形成边界。但是，最近的水文地质调查表明，原始的和补救的帷幕的延伸深度不足以拦截主要的渗流路径。最初的窗帘延伸到基岩的平均深度为30米（100英尺）。已发现深度大于122米（400英尺）的高渗透区。本文介绍了用于最新灌浆程序的钻探和灌浆技术。
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