基于非线性准则岩坡稳定性区间分析与加固设计
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摘要
岩体力学参数的选取具有较大的繁冗性或主观性,在工程实践中具有较大的弊端。结合HoekBrown经验强度准则及区间数学理论对岩体力学参数区间量化,该法以区间值表示边坡的稳定性状况,可体现稳定性的不确定性。以湖南319国道泸溪段滑坡为例,采用极限平衡法与有限差分法进行数值分析,表明该边坡处于不稳定状态,为加固设计提供了理论依据。
The redundancy or subjectivity of selection rock mechanical parameter is a great disadvantage in the practice of engineering. With Hoek-Brown strength criterion interval and interval mathematics theory to rock mechanical parameters quantify interval represents the method to slope stability conditions reflecting the stability of uncertainty. In paragraph 319 national highway in Hunan province Luxi landslide for example,with limit equilibrium method and finite difference method for numerical analysis,indicated that the slope was in an unstable state,and which provided theoretical basis for design.
The redundancy or subjectivity of selection rock mechanical parameter is a great disadvantage in the practice of engineering. With Hoek-Brown strength criterion interval and interval mathematics theory to rock mechanical parameters quantify interval represents the method to slope stability conditions reflecting the stability of uncertainty. In paragraph 319 national highway in Hunan province Luxi landslide for example,with limit equilibrium method and finite difference method for numerical analysis,indicated that the slope was in an unstable state,and which provided theoretical basis for design.
引文
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[5]乔兰,丁新启,屈春来,等.基于Hoek-Brown准则的Morgenstern-Price法在边坡稳定性分析中的应用[J].北京科技大学学报,2010,32(4):409-412.
[6]陈昌富,翁敬良.基于广义Hoek-Brown准则边坡稳定性分析强度折减法[J].中国地质灾害与防治学报,2010,21(1):13-18.
[7]张亚鹏,郑学贵,靳晓光,等.基于Hoek-Brown准则的小净距隧道节理围岩稳定性研究[J].公路交通技术,2014(6):48-52.
[8]李守龙,李宗利,黄高峰.Hoek-Brown强度准则在隧道岩体稳定分析中的应用研究[J].长江科学院院报,2014,31(5):43-46.
[9]张琦.广义三维Hoek-Brown岩体强度准则的修正及其参数多尺度研究[J].岩石力学与工程学报,2015(3).
[10]邓小钊,刘辉,张永杰.基于广义Hoek-Brown准则的节理软岩边坡稳定性区间分析[J].公路工程,2014(5):21-24.
[2]周念清,杨楠,汤亚琦,等.基于Hoek-Brown准则确定核电工程场地岩体力学参数[J].吉林大学学报:地球科学版,2013,43(5):1517-1522.
[3]卢萍,王宁,吴艺.基于Hoek-Brown准则的深部岩体力学参数及其应用[J].西南科技大学学报,2010,25(4):34-37.
[4]夏开宗,陈从新,刘秀敏,等.基于岩体波速的Hoek-Brown准则预测岩体力学参数方法及工程应用[J].岩石力学与工程学报,2013,(7):1458-1466.
[5]乔兰,丁新启,屈春来,等.基于Hoek-Brown准则的Morgenstern-Price法在边坡稳定性分析中的应用[J].北京科技大学学报,2010,32(4):409-412.
[6]陈昌富,翁敬良.基于广义Hoek-Brown准则边坡稳定性分析强度折减法[J].中国地质灾害与防治学报,2010,21(1):13-18.
[7]张亚鹏,郑学贵,靳晓光,等.基于Hoek-Brown准则的小净距隧道节理围岩稳定性研究[J].公路交通技术,2014(6):48-52.
[8]李守龙,李宗利,黄高峰.Hoek-Brown强度准则在隧道岩体稳定分析中的应用研究[J].长江科学院院报,2014,31(5):43-46.
[9]张琦.广义三维Hoek-Brown岩体强度准则的修正及其参数多尺度研究[J].岩石力学与工程学报,2015(3).
[10]邓小钊,刘辉,张永杰.基于广义Hoek-Brown准则的节理软岩边坡稳定性区间分析[J].公路工程,2014(5):21-24.