清徐供水工程末端调蓄池液化地基处理优化设计

Optimization Design to Treat Liquefaction Soil of Terminal Storage Pool in the Qingxu Water Supply Project

清徐供水工程末端调蓄池地基土存在液化问题,文中针对原地基处理设计中全坝基沉管碎石桩方案存在费用高,施工期长的问题,结合工程实际进行了优化设计。通过多方法、多方案比较,最终选用更为经济合理的局部沉管碎石桩方案,很好地解决了原方案中存在的不足。

The liquefaction problem existed in the foundation soil of the terminal storage pool of the Qingxu Water Supply Project. The original scheme to treat the foundation in design is to use the crushed stone piles with settling tubes on the whole dam foundation, but the scheme＇s cost is high and the construction period is long. In view of this scheme＇s problems and in combination with the actual situation, the optimization design has been conducted. Through the compre- hensive analysis on multiple methods and multiple schemes, the more economic and reasonable scheme, ie to form the crushed stone piles with settling tubes on partial scope of the dam foundation, is selected, and the weakness of the original design is overcomed well.