克孜尔水库主坝右坝肩倾倒体结构稳定安全评价
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摘要
克孜尔水库坝址区工程地质条件复杂,地震、断层活跃,主坝右坝肩倾倒体现已出现裂缝。经对结构稳定分析可知,主坝右坝肩倾倒体遭遇地震时稳定安全系数较小,安全性不能满足要求,出现滑坡的可能性较大,危险性较大。由于该倾倒体临近主坝,一旦出现大规模滑坡,可能会产生较大的涌浪,严重威胁大坝安全。应加强监测倾倒体的变形,必要时需进行工程加固处理。
Because of active earthquake and fault,the engineering geologic condition of Kizil reservoir dam is complexly.The dumping slope in the right abutment of main dam has cracks now.According to structural stability analysis,it is known that when earthquake happens,safety coefficient of structural stability of the dumping slope is a little small and its safety can not be ensured.Thus,the occurrence possibility of landslide is relatively great.The dumping slope is close to the main dam,therefore if a massive landslide happens,great waves that landslide results would threaten dam safety.Monitoring facilities should be increased for deformation measuring of the dumping slope,and rehabilitation measures should be taken if necessary.
Because of active earthquake and fault,the engineering geologic condition of Kizil reservoir dam is complexly.The dumping slope in the right abutment of main dam has cracks now.According to structural stability analysis,it is known that when earthquake happens,safety coefficient of structural stability of the dumping slope is a little small and its safety can not be ensured.Thus,the occurrence possibility of landslide is relatively great.The dumping slope is close to the main dam,therefore if a massive landslide happens,great waves that landslide results would threaten dam safety.Monitoring facilities should be increased for deformation measuring of the dumping slope,and rehabilitation measures should be taken if necessary.
引文
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[2]GB18306-2001,中国地震动参数区划图[S].
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[4]新疆克孜尔水库工程施工技术总结[R].西安:陕西省水电工程局,1993.
[2]GB18306-2001,中国地震动参数区划图[S].
[3]向新益,向容朝.新疆渭干河克孜尔水库右坝肩防渗处理工程地质勘察报告[R].乌鲁木齐:新疆维吾尔自治区水利水电勘测设计研究院,2004.
[4]新疆克孜尔水库工程施工技术总结[R].西安:陕西省水电工程局,1993.
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