【摘要】 以吉林—珲春客运专线典型膨胀土边坡工程为依托,采用有限元强度折减法计算分析ABAQUS线弹塑性模型,对不同桩间距抗滑桩加固膨胀土边坡的稳定性进行分析,并与现场监测数据进行对比。研究结果表明:随桩间距的增大,膨胀土边坡安全系数逐步降低,且降低速率先平缓后加快;计算出最合理的抗滑桩间距为5.25 m,验证了抗滑桩施工间距布置的合理性;通过与现场监测数据的对比,验证了数值模拟结果的正确性。更多还原

【Abstract】 Relying on typical expansive soil slope engineering of Jilin-Hunchun Passenger Dedicated Line,the finite element strength reduction method is used to calculate and analyze the line elastic-plastic model in ABAQUS. The different pile spacings of slide-resistant pile for enhancing expansive soil slope is analyzed and compared with the monitoring data on site. The research results show: With the increase of pile spacing,the safety factor of expansive soil slope is progressively reducing,and the lowering rate is gently first and then rapidly. The most reasonable spacing of slide-resistant piles shall be 5. 25 m. The reasonability of arrangement spacing of slide-resistant piles is verified. Through comparison with the monitoring data on site,the correctness of simulated value is verified.更多还原