叶万军,马伟超,杨更社,万强,王鹏
YE Wanjun,MA Weichao,YANG Gengshe,WAN Qiang,WANG Peng

• 1:西安科技大学建筑与土木工程学院

摘要(Abstract)：

楔形体黄土崩塌主要受两组相向倾斜的结构面控制。根据楔形体崩塌破坏机制,概化出其地质力学模型,结合极限平衡方程,考虑摩尔库仑准则,建立了楔形体总的稳定性系数及各个结构面的稳定性系数计算公式,提出了楔形体黄土崩塌稳定性分析方法。研究结果为定量评价黄土崩塌的稳定性提供了理论依据,对黄土崩塌治理的设计与施工具有参考价值。
Wedge-shaped loess collapse is mainly controlled by two opposite structural planes. According to the failure mechanism of wedge-shaped collapses, the geomechanics model was generalized. Formulas were established to calculate the coefficient of stability of wedge and two structural planes by combining the limit equilibrium equation, in consideration of Mohr-Coulomb strength criterion, and stability analysis method of wedge-shaped loess collapse was put forward. The research results provided the theoretical basis for quantitative evaluation of stability of loess collapse, and have important reference value for the design and construction of regulation project for loess collapse.

关键词(KeyWords)： 黄土;楔形体崩塌;形成机制;稳定性分析
loess collapse;wedge-shaped collapse;formation mechanism;stability analysis

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41172262);; 教育部新世纪人才支持计划项目(NCET-12-1044);; 陕西省青年科技新星项目(KJXX-37);; 陕西省重点科技创新团队计划(2014KCT-30)

作者(Author): 叶万军,马伟超,杨更社,万强,王鹏
YE Wanjun,MA Weichao,YANG Gengshe,WAN Qiang,WANG Peng

参考文献(References)：

• [1]雷祥义,魏青珂.陕北伤亡性黄土崩塌成因与对策研究[J].岩土工程学报,1998,20(1):64–69.
• [2]胡厚田.崩塌分类的初步探讨[J].铁道学报,1985,7(2):90–100.
• [3]胡厚田.崩塌与落石[M].北京:中国铁道出版社,1989.
• [4]徐茂其,王昕,罗守贵.山地岩石崩塌类型及发育分期研究[J].水土保持学报,1995,9(3):28–32.
• [5]邢建营,邢义川,陈祖煜,等.岩质边坡楔形体破坏的离心模型试验方法研究[J].水土保持通报,2005,25(3):15–19.
• [6]詹志雄.赤平极射投影分析和楔形体稳定计算[J].铁道勘察,2005(4):51–53.
• [7]左林勇,谢红强,何江达.基于ANSYS的岩质边坡楔体稳定分析系统开发[J].路基工程,2009,58(5):111–113.
• [8]卢元鹏,王思长,倪媛.岩质边坡楔形体破坏的稳定性分析[J].西安工程大学学报,2011,25(1):60–63.
• [9]曲永新,张永双,陈情来.陕北晋西黄土滑塌灾害的初步研究[J].工程地质学报,2001,9(3):237–329.
• [10]王根龙,张茂省,苏天明,等.黄土崩塌破坏模式及离散元数值模拟分析[J].工程地质学报,1998,20(1):64–69.
• [11]宋立胜,雷祥义.陕西省黄土崩塌隐患区宅基地选址方案研究[J].灾害学,1998,13(1):25–29.
• [12]唐亚明,薛强,毕俊擎.陕北黄土崩塌灾害风险评价指标体系构建[J].地质通报,1998,20(1):64–69.
• [13]HUNGR O,COROMINAS EBERHARDT E.Estimating landslide motion mechanism,travel distance and velocity[C]//HUNGER O,FELL R,COUTURE R.Proceedings of the International Conference on Landslide Rick Management.London:Taylor and Francis,2005:108–115.

文章评论(Comment)：