水位变化对山区沿河半填半挖路基稳定性的影响分析

Analysis on Impact of Water-level Fluctuation on Part-cut and Part-fill Subgrade Stability in Mountain Area along the River

研究了水位变化对山区沿河半填半挖路基稳定性的影响,水位变化速度越快,路基整体安全系数越小,路基填料渗透系数越大,路基整体安全系数越大。因此,设计沿河路基边坡支挡防护工程时,应考虑河道水位实际变化规律对路基整体稳定的影响;半填半挖路基填料宜采用渗透系数较大的填料。

The impact of water -level fluctuation on part -cut and part -fill subgrade stability in is. Therefore, when designing the slope retaining protection engineering of subgrade along the river, the impact of actual change rules of riverway water - level on the overall stability of subgrade shall be considered. Part - cut and part -fill subgrade fillings shall adopt fillings with bigger osmotic coefficient.