摘要
贵州地区地质条件复杂,山区公路的修建产生大量边坡问题,对于切层边坡,结构面的不利组合往往造成其楔形破坏。文中采用传统的赤平投影法和数值模拟法,分别从定性和定量上对典型实例的变形破坏模式和稳定性进行研究,通过建立三维数值模型,计算分析该边坡在自然工况和暴雨工况下的变形趋势和破坏模式,并用强度折减法计算其稳定性系数,对比规范要求得出该边坡处于不稳定状态,提出相应的治理措施建议。
Guizhou contains very complicated geological conditions where the construction of highway will result in a lot of slope problems. For insequent slope, the disadvantageous combination of struc-tural plane often leads to wedge-shaped rock slope. From the perspective of qualitative and quantita-tive, the traditional method of stereo-graphic projection and the numerical simulation method are used to research the deformation and failure mode and stability of a typical rock slope. By establishing the three-dimensional numerical model, the trend of deformation and failure mode of the slope under the natural condition and heavy rain condition are calculated and analyzed, and the stability coefficient is calculated using strength reduction method. It is concluded that the slope is in unstable condition through contrast with the stability coefficient of corresponding requirement specification, and the cor-responding control measures are suggested.
出处
《交通科技》
2017年第2期18-20,24,共4页
Transportation Science & Technology
关键词
山区公路
楔形破坏
数值模拟
highway in mountainous area
wedge-shaped
numerical simulation method
