顺层岩质边坡分级组合支挡体系研究

Study on graded combined bracing system of bedding rock slope

以川南某建设项目为例,在有限用地条件下,为满足景观需求,通过调整支护方案的组合形态,同时考虑锚索预应力损失及耐久性,通过对比,采用了放坡+格构锚索(锚杆)+抗滑桩的组合支挡体系,并通过调整分级高度、抗滑桩和锚索下滑力分配等,实现最优化组合。边坡开挖和使用过程中各项监测数据均在规范允许范围内,有效的保证了边坡及坡脚建筑物安全,赢得了良好的经济效益和社会效益。

Based on the basis of a construction project as an example, under the condition of limited land, to meet the demand of landscape, by adjusting the supporting schemes combination form, at the same time, prestress loss and durability.By contrast, the combined bracing system of slope release + anchor cable+ anti-slide pile is adopted;and by adjusting the classification, such as height, anti-slide pile and anchor cable force distribution in Achieve optimal combination. In the process of slope excavation and use, the monitoring data are within the standard range, which effectively ensures the safety of slope and slope foot buildings, and wins good economic and social benefits.