微型桩在某渡槽槽墩保护中的运用

The Application of Micro-piles in the Protection of Aqueduct Piers

随着中国经济的快速发展,基础设施大量建设,交叉建筑物越来越多,相互之间需要保护的情况也会经常出现。某渡槽因水闸的改扩建导致槽墩外露而需要保护,在选择保护方案时,从平面外轮廓和结构方案方面进行了综合比选,拟定了正方形、菱形及眼睛形等3种平面外轮廓,利用水工模型进行试验研究,选择了水流流态较好的眼睛形平面外轮廓;从场地施工条件等角度出发,对结构方案进行了综合比选,最终得出微型桩方案具有可实施性。该渡槽槽墩保护方案的成功实施,既保证了水闸的正常施工,又保障了渡槽的安全运行,作用巨大,效果良好,可供类似工程借鉴与参考。

With the rapid development of the Chinese economy,a large amount of infrastructure is being constructed,and there are more and more intersecting buildings,which often require protection from each other.A certain aqueduct needs protection due to the exposed pier caused by the renovation and expansion of the water gate.When selecting protection schemes,a comprehensive comparison was made from the aspects of the outer contour of the plane and the structural scheme.Three types of out of plane contours were proposed,including square,diamond,and“eye shaped”contours.A hydraulic model was used for experimental research to select the“eye shaped”out of plane contour with better water flow patterns.The structural scheme has been comprehensively compared and selected from the perspectives of site construction conditions and suitable sites for various schemes,and the micro pile scheme has feasibility.The successful implementation of the protection of the aqueduct pier not only ensures the construction of the water gate,but also ensures the safe operation of the aqueduct,playing a huge role and achieving good results,which can be used as a reference for similar projects.