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G213线川主寺至汶川公路灾后复建工程K169+500~+580段边坡前部出现多条拉裂缝。对该段边坡进行稳定性分析,可知在天然状态下,边坡处于蠕滑状态;在暴雨和地震状态下,边坡将失稳下滑。经综合分析研究认为,该边坡地震发生后土质边坡趋于松散,降雨易于渗入坡体,使滑坡土体处于饱水状态,故将考虑暴雨因素作为设计控制工况。本文研究为该滑坡的有效防治提供了重要依据,对确保人民生命财产的安全具有重要意义。
G213 Line Chuanzhu Temple to Wenchuan Highway Reconstruction K169 +500 ~ +580 section of the slope appeared in front of a number of cracks. The stability analysis of this section of slope shows that under natural conditions, the slope is in a creep state, and under heavy rainfall and earthquake conditions, the slope will slide downwards. According to the comprehensive analysis and research, the soil slope tends to loose after the earthquake and the rainfall tends to infiltrate the slope, making the landslide soil in a saturated state. Therefore, the rainstorm factor will be considered as the design control condition. This study provides an important basis for the effective prevention and treatment of the landslide and is of great significance to ensure the safety of people’s lives and property.