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官地水电站尾水调压室运行期混凝土喷层开裂处理
Publication year - 2019
Publication title -
水电水利
Language(s) - Uncategorized
Resource type - Journals
ISSN - 2529-7821
DOI - 10.32629/hwr.v3i2.1907
Subject(s) - medicine
官地水电站尾水调压室尺寸为205m×21.5m×57(长×宽×高),顶部21.5m范围永久衬砌为网喷混凝土。在开挖施工过程中出现喷混凝土开裂,电站运行后再次出现开裂、剥离、掉块等现象。根据地质条件、现场调查、监测仪器数据分析,认为围岩整体稳定,裂缝主要表现为尾调室浅表层岩体应力释放造成的浅表层松弛和混凝土喷层开裂破坏。在电站保持运行条件下,对开裂受损喷混凝土进行了处理。2015年11月完成处理,目前运行良好。

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