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为研究锚杆支护在公路边坡加固中的应用效果,本文首先对锚杆支护的施工工艺进行了总结,并采用数值分析方法研究了锚杆长度、倾角和间距对其支护效果的影响。结果表明:在临界长度范围内增加锚杆长度能有效提高边坡安全系数;锚杆支护存在最佳锚固倾角;锚杆间距增大时边坡安全系数逐渐减小,且减小速率逐渐加快;本工程采用长度7m、倾角15°和间距4m的锚杆支护能取得良好应用效果。
In order to study the application effect of bolt support in highway slope reinforcement, this paper summarizes the construction technology of bolt support and studies the effect of bolt length, inclination and spacing on the supporting effect by using numerical analysis method influences. The results show that increasing the bolt length within the critical length can effectively improve the safety factor of the slope. The optimal anchorage angle exists for the bolt support. When the bolt spacing increases, the safety factor of the slope gradually decreases and the decreasing rate gradually increases ; The project uses a length of 7m, 15 ° pitch and spacing 4m bolt support can achieve good results.