绳索救助钢钎锚点承载力实验研究

Experimental study on bearing capacity of anchor point with steel drill rod for rope rescue

对钢钎锚点进行承载力实验,通过数据分析及曲线对比探讨几种钢钎锚点典型用法下的承载力,为各级各类救援队伍提供实战参考。结果表明,钢钎锚点在规定设置要求下,单根钢钎承载力与插入土壤的深度关系不大。单根钢钎插入全长的2/3和4/5,承载力平均值分别为4.199 kN和4.564 kN;钢钎系统承载力明显大于单根钢钎,两根钢钎系统承载力平均值为8.352 kN,三根钢钎系统承载力平均值为10.446 kN。在野外绳索救助实战条件允许的情况下,钢钎系统是更佳的选择,尤其是3根钢钎系统。

The bearing capacity experiment of the steel drill anchor was carried out,and the bearing capacity of several typicalsteel drill anchor was researched through the data analysis and curve comparison to provide a reference for all kinds of rescue teams at all levels.The results showed that under the specified setting requirements,the bearing capacity of a single steel drill rod has little relationship with the depth of insertion into the soil.For the single steel drill rod,the insertion of 2/3 and 4/5 had the average bearing capacity of 4.199 kN and 4.564 kN respectively.The bearing capacity of the pickets system is significantly higher than that of a single picket,the average bearing capacity of two pickets system is 8.352 kN,and the average bearing capacity of three pickets system is 10.446 kN.Pickets system,especially the three pickets system,is the better choice if the conditions of actual field rope rescue permit.