直立顺层边坡的流变失稳特性研究
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摘要
指出层状直立边坡的屈曲失稳与岩体的流变性质密切相关。针对直立顺层边坡在开挖成形后会产生向临空面的变形,忽略相邻岩层对其作用,仅考虑外层岩板向临空面变形并导致层间脱离的状况,采用自重作用下的梁柱力学模型,将地面坡角处的约束视为固定端约束,考虑岩体材料的流变特性,应用三参量粘弹性固体模型,分析了直立边坡的流变屈曲失稳特性。
Point out that instability destruction of bluff stratum slope has osculating correlation with the rheology character of rock. Aim at distortion of bluff stratum slope toward the empty surface after exploitation, ignore action frorm adjacent terrane, only consider the condition that the bluff slope distortion toward the empty surface, then adopted beam-pole model endure self-gravitation, regard ground as fixation restriction, used three parameter rheology model, and analyzed rheology instability destruction speciality of model bluff rock slope.
Point out that instability destruction of bluff stratum slope has osculating correlation with the rheology character of rock. Aim at distortion of bluff stratum slope toward the empty surface after exploitation, ignore action frorm adjacent terrane, only consider the condition that the bluff slope distortion toward the empty surface, then adopted beam-pole model endure self-gravitation, regard ground as fixation restriction, used three parameter rheology model, and analyzed rheology instability destruction speciality of model bluff rock slope.
引文
[1] 孙广忠.岩石结构力学[M].北京:科学出版社,1988.
[2] 李云鹏.顺层边坡岩体结构稳定性位移理论[J].岩石力学与工程学报,2000,19(6):747-750.
[3] 张晓春.岩石板梁结构时间相关变形的稳定性分析[J].武汉交通科技大学学报,1999,23(2):158-160.
[4] 孙广忠.工程地质与地质工程[M].北京:地震出版社,1993.
[5] 梁炳文.弹塑性稳定理论[M].北京:国防工业出版社,1983.
[6] 杨挺青.粘弹性力学[M].武汉:华中理工大学出版社,1990.
[7] 王芝银.地下工程位移反分析法及程序[M].西安:陕西科学技术出版社,1993.
[2] 李云鹏.顺层边坡岩体结构稳定性位移理论[J].岩石力学与工程学报,2000,19(6):747-750.
[3] 张晓春.岩石板梁结构时间相关变形的稳定性分析[J].武汉交通科技大学学报,1999,23(2):158-160.
[4] 孙广忠.工程地质与地质工程[M].北京:地震出版社,1993.
[5] 梁炳文.弹塑性稳定理论[M].北京:国防工业出版社,1983.
[6] 杨挺青.粘弹性力学[M].武汉:华中理工大学出版社,1990.
[7] 王芝银.地下工程位移反分析法及程序[M].西安:陕西科学技术出版社,1993.
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