高填土路堤边坡失稳机理及加固措施比选

介绍高填土边坡的失稳机理及加固措施,并以某高速公路高填土路堤边坡为工程背景,采用有限单元计算方法,对不同加固方法进行比选研究,结果表明预应力锚索框架联合加固法优于锚杆加固法或抗滑桩加固法,在高填土边坡中形成的总位移和塑性区分布均相对较小,有利于土体的稳定.成果不仅能够有效地指导边坡加固措施,而且对规范边坡加固措施具有一定的理论价值.

Study of mechanism of destabilization and reinforcement of slopes in high filling embankments

The mechanism of destabilization and reinforcement of slopes in high filling embankments are described.Based on the background of expressway,the different reinforcements are calculated by finite element method.The results show that the plan with prestressed anchor cable has a obvious advantage over that with anchor or anti-slide pile;the resultant displacement and the distribution of plastic areas are smaller in high filling embankment.The achievement not only can instruct the slope protection measure effectively,but also has theoretical value to it.