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在地质条件多为砂土或砂砾地区,水下钻孔多有不便,非常适合人工挖孔桩。以喀拉昆仑公路改建工程A段某大桥为例,介绍挖孔桩适用情况及优点,对护壁强度进行分析计算,对施工安排进行简要说明。
In geological conditions, mostly sand or gravel area, underwater drilling more inconvenient, very suitable for manual digging pile. Taking the bridge section A of the reconstruction project of the Karakoram Highway as an example, this paper introduces the application and advantages of digging pile, analyzes and calculates the strength of the retaining wall, and gives a brief description of the construction schedule.