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Data analysis on left shoulder of main dam in Kezhi’er Reservoir

An Jing-sheng,Zhang Hong-ke and Kuang Lun-wen   

  • Published:2003-04-28

克孜尔水库主坝左肩观测资料异常情况分析

安景生,张宏科,况伦文   

  1. 新疆克孜尔水库管理局,新疆拜城 842313

Abstract: Prototype observation data of left shoulder of main dam has been analyzed, and it showed that left shoulder of main dam operated well after earthquake on15th, march of1999and extreme flood on20, July of1999. Abnormal seepage resulted from grouting drainage and irrigation, which has no relationship with seepage stability condition, and didn’t influence impound safety at high water level.?

摘要: 1999年3月15日,克孜尔水库坝址下游近场区发生里氏5.7级地震;7月20日水库拦蓄了一次重现期为2%的历史大洪水,库水位短时间内上升5m,之后,主坝右坝肩渗水量及地下水位等观测资料出现异常偏高的现象。本文重点对主坝左坝肩原型观测资料进行综合分析,认为:在“3·15”大地震和“7·20”特大洪水后,主坝左坝肩运行状态正常,渗流异常现象是因方山段灌浆施工排水及方山绿化灌溉等形成的地表积水下渗所造成,与主坝左坝肩渗透稳定状态无关,不影响水库高水位蓄水安全性。