交通科技与经济
交通科技與經濟
교통과기여경제
Technology & Economy in Areas of Communications
2009年
4期
51-53
,共3页
锚索%预应力损失%数值模拟%蠕变
錨索%預應力損失%數值模擬%蠕變
묘색%예응력손실%수치모의%연변
cable-bolt%prestress loss%numerical simulation%creep
结合具体工程地质条件,在FLAC 3D程序中设置相应参数,对由于岩体蠕变引起的锚索预应力损失进行数值模拟.通过对比发现,考虑锚索预应力变化和边坡蠕变的耦合作用而建立模型并推导的变化公式,计算结果与实际工程测算结果相近,因此该数值模拟程序可为工程实践提供参考.
結閤具體工程地質條件,在FLAC 3D程序中設置相應參數,對由于巖體蠕變引起的錨索預應力損失進行數值模擬.通過對比髮現,攷慮錨索預應力變化和邊坡蠕變的耦閤作用而建立模型併推導的變化公式,計算結果與實際工程測算結果相近,因此該數值模擬程序可為工程實踐提供參攷.
결합구체공정지질조건,재FLAC 3D정서중설치상응삼수,대유우암체연변인기적묘색예응력손실진행수치모의.통과대비발현,고필묘색예응력변화화변파연변적우합작용이건립모형병추도적변화공식,계산결과여실제공정측산결과상근,인차해수치모의정서가위공정실천제공삼고.
In this paper, the prestress loss because of creep which in the specific engineering geological condition was simulated in FLAC3D program, and then the conclusion of numerical simulation was compared with the result which was calculated by theoretical function, the theoretical function of long-term prestress variation is put forward by the way which based on coupling of long-term prestress loss of anchor tie and slope creep, and builting a new mode. Then we found that the result between the two is close, therefore, it can offer a reference to preject practice.
