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螺旋钻成孔灌注桩施工便捷,污染少,成桩质量及效率较高,在公路桥梁、建筑工程中应用十分广泛。然而在沙漠地区,应用螺旋钻成孔的灌注桩施工难度较大,为保证沙漠地区灌注桩施工质量,需要掌握螺旋钻成孔的灌注桩施工工艺及其要点,避免在施工过程中出现质量问题。结合毛乌素沙漠中某甲醇加工工程,对沙漠地区螺旋钻成孔的灌注桩施工进行综合分析。实践证明,控制关键工序施工质量,是保证灌注桩施工综合效益的重要措施。
Spiral drilling bored piles easy construction, less pollution, into a pile of high quality and efficiency, in highway bridges, construction projects are widely used. However, in the desert area, the construction of cast-in-situ cast-in-place piles with spiral drills is more difficult. In order to ensure the construction quality of cast-in-situ piles in desert areas, it is necessary to master the construction techniques and key points of perforated piles with spiral drilled holes so as to avoid quality problems during construction . Combining with a methanol processing project in the Mu Us desert, a comprehensive analysis was made on the construction of bored piles with spiral drilled holes in desert areas. Practice has proved that the control of the construction quality of key processes is to ensure the overall efficiency of the construction of cast-in-place piles an important measure.