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：Logan Martin Dam由阿拉巴马州电力公司拥有和运营。 自1964年完成大坝以来，通过岩溶基金会控制缺点是一个持续的挑战。 已经通过灌浆来通过基础建立截止的几次尝试。 然而，最近的水文地质调查表明，原始和补救窗帘没有足够深度延伸以拦截占渗流路径。 原始窗帘延伸到平均深度为30米（100英尺）进入基岩。 在大于122米（400英尺）的深度下发现了高渗透的区域。 本文介绍了用于最近灌浆计划的钻孔和灌浆技术。
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