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在山区工程建设尤其是沉积岩地区的工程建设中,经常遇到顺层滑坡问题。目前顺层滑坡防治和加固中,常用的支挡抗滑结构,存在施工工期长和场地适应性差等缺点。微型桩群作为一种新型的小型化支挡抗滑结构,具有施工机具小、桩位布置灵活、施工速度快、对土体扰动小、施工场地适应性强、加固效果好等优势,是一种高效安全的滑坡抢险加固手段。该文介绍了贵州某电厂顺层滑坡抢险中,采用微型钢管群桩加固的方案,对其计算方法进行了初步探讨,为微型桩群在顺层滑坡抢险中的应用,提供了参考与借鉴。
In the engineering construction of mountainous areas, especially in sedimentary rock areas, landslide problems are often encountered. At present, in bedding landslide prevention and reinforcement, the commonly used support skid resistant structures have the disadvantages of long construction period and poor site adaptability. As a new type of small-sized support slip-resistant structure, the mini-pile group has the advantages of small construction machinery, flexible pile layout, fast construction speed, small disturbance to soil mass, strong adaptability in construction site and good reinforcement effect Efficient and safe landslide rescue measures. This paper introduces a scheme of micro-steel pipe group pile reinforcement in the landslide rescue of a power plant in Guizhou. The calculation method is discussed preliminarily, which provides reference and reference for the application of micro-pile group in the landslide rescue.