岩石力学与工程学报
巖石力學與工程學報
암석역학여공정학보
CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING
2014年
11期
2276-2282
,共7页
黎满林%卫蔚%张荣贵
黎滿林%衛蔚%張榮貴
려만림%위위%장영귀
水利工程%大岗山水电站%高边坡%卸荷裂隙%加固处理%稳定分析
水利工程%大崗山水電站%高邊坡%卸荷裂隙%加固處理%穩定分析
수리공정%대강산수전참%고변파%사하렬극%가고처리%은정분석
hydraulic engineering%Dagangshan hydropower station%high slope%unloading fissures%reinforcing treatment%stability analysis
大岗山水电站坝址区山体雄厚、岸坡陡峻,地形地质条件复杂。右岸工程边坡规模巨大,地质构造发育,卸荷风化强烈,地震烈度高,坡体结构复杂,边坡稳定性问题极为突出。以工程地质条件为基础,深入研究边坡的潜在滑移模式,并结合现场施工条件,提出右岸边坡卸荷裂隙密集带综合加固处理方案。采用多种方法对边坡稳定性进行了计算分析,计算结果表明,加固处理后的右岸边坡满足稳定性控制标准;同时,现场监测资料也表明,目前边坡稳定性状态良好,边坡加固处理方案合理、有效。
大崗山水電站壩阯區山體雄厚、岸坡陡峻,地形地質條件複雜。右岸工程邊坡規模巨大,地質構造髮育,卸荷風化彊烈,地震烈度高,坡體結構複雜,邊坡穩定性問題極為突齣。以工程地質條件為基礎,深入研究邊坡的潛在滑移模式,併結閤現場施工條件,提齣右岸邊坡卸荷裂隙密集帶綜閤加固處理方案。採用多種方法對邊坡穩定性進行瞭計算分析,計算結果錶明,加固處理後的右岸邊坡滿足穩定性控製標準;同時,現場鑑測資料也錶明,目前邊坡穩定性狀態良好,邊坡加固處理方案閤理、有效。
대강산수전참패지구산체웅후、안파두준,지형지질조건복잡。우안공정변파규모거대,지질구조발육,사하풍화강렬,지진열도고,파체결구복잡,변파은정성문제겁위돌출。이공정지질조건위기출,심입연구변파적잠재활이모식,병결합현장시공조건,제출우안변파사하렬극밀집대종합가고처리방안。채용다충방법대변파은정성진행료계산분석,계산결과표명,가고처리후적우안변파만족은정성공제표준;동시,현장감측자료야표명,목전변파은정성상태량호,변파가고처리방안합리、유효。
The topographical and geological condition of dam area of Dagangshan hydropower station is complex and the bank slope is steep. The well developed geological structures,unloading fissures,high earthquake intensity and complicated slope structures lead to the problem of stability of the high slope at the right bank. The potential sliding mode of the slope was studied in detail considering the site conditions of geology and construction. A synthetic scheme of reinforcing treatment was thus proposed and used for the belt with dense unloading fissures at the right bank slope. The stability analysis of slope was carried out with different numerical methods. The results indicate that the safety factor of the slope after the reinforcement meets the requirement of the control standard. At the same time,the data of in-situ monitoring indicate that the slope is stable and the scheme of reinforcing treatment is reasonable and effective.