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首页> 外文会议>Association of State Dam Safety Officials, Inc. 2002 Annual Conference Sep 8-11, 2002 Tampa, Florida >THERMAL INVESTIGATIONS FOR SEEPAGE LOWER HIGHLAND LAKE DAM GOSHEN, MASSACHUSETTS
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THERMAL INVESTIGATIONS FOR SEEPAGE LOWER HIGHLAND LAKE DAM GOSHEN, MASSACHUSETTS

机译：马萨诸塞州高地下层大湖渗流的热学研究

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Lower Highland Lake, with average capacity of 1,350 acre-ft of water, is impounded by a high-hazard earthen embankment about 665 ft long and 28 ft high. The crest is about 18 ft wide, and the abutments taper into wooded areas. In December 2000, thermal sensors accurate to approximately 0.01 deg C were installed and measured at 10-ft depth along the crest of the dam and along the right downstream toe, where seepage appears at the surface. From the results, zones of intake for seepage were interpreted at both abutments and on either side of the spillway. In October―November 2001, a follow-on program was done to test and refine the interpretations. Sets of temperature measurements were read within the embankment and reservoir, and water levels were measured in piezometers before, during, and after the reservoir rose and returned to normal. The thermal data were synthesized with the previous program, and analyzed with respect to ambient temperatures, variations over time, and other variables. Dye tests were also made. The results supported the interpretation that the source of the right downstream seep was the area of the right abutment. Seepage sources to other locations were identified along both sides of the spillway, the left abutment, and along the outlet pipe through the embankment. Programs for monitoring and mitigation were designed for the seepage sources.
机译：下高地湖的平均容量为1,350英亩-英尺，由长约665英尺，高28英尺的高危害土堤围堵。顶峰约18英尺宽，基台逐渐变细成树木繁茂的区域。 2000年12月，安装了精确至约0.01摄氏度的热传感器，并沿着大坝的顶部和右下游脚趾在10英尺深处进行了测量，该处的表面出现渗水。根据结果​​，可以在两个桥台和溢洪道的两侧解释渗水的入口区域。 2001年10月至2001年11月，执行了后续程序来测试和完善解释。在路堤和水库内读取温度测量值，并在水库上升并恢复正常之前，期间和之后，用压力计测量水位。用之前的程序合成了热数据，并针对环境温度，随时间的变化以及其他变量进行了分析。还进行了染料测试。结果支持以下解释：右下游渗水的来源是右基台区域。沿溢洪道的两侧，左基台和沿路堤的出水管确定了到其他位置的渗漏源。针对渗流源设计了监测和缓解程序。

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