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旋挖钻成孔施工过程要进行以下几点来控制施工质量:采用坐标法对桩基进行定位;应对护筒材料进行抗压、抗拉、抗透水测试,应用挖埋法进行护筒埋设,对泥浆池进行合理布置,根据地层条件的差异调制不同的泥浆;在施工中对护筒口高程进行准确详实的记录,为了控制桩长,需要正确换算各项设计高程,并采用适当的方法进行清孔。本文结合具体的工程实例,详细探讨了旋挖钻技术在特大桥梁施工中的应用,希望能对类似工程起借鉴作用。
Rotary drilling into the hole into the process of construction to be carried out the following points to control the construction quality: the use of coordinate method to locate the pile foundation; Shell material should be pressure, tensile, water resistance test, The mud pool should be properly arranged, and different muds should be prepared according to the difference of formation conditions. Accurate and accurate records of the casing mouth elevation should be made during construction. In order to control the length of pile, the design elevations need to be properly converted and the appropriate method should be adopted hole. In this paper, the specific engineering examples, discussed in detail rotary drilling technology in the construction of super-large bridge, hoping to learn from similar projects.