From an engineering reality, in order to solve complex stratigraphic drilling problems and improve construction efficiency, the method of combination of large diameter DTH hammer and the pile driver with a special long spiral drill multifunctional is proposed. This method has the characteristics of simple equipment, fast, effective, low cost etc. It can quickly drill through layers of gravel, stone, weathered bedrock, reach to depth up to above 25 m. It has been widely used in embedded engineering methods of precast piles, the long spiral rock-socketed piles, piles into the rock currently. The study of this construction method has not only wide range of applications, but also has a wide range of practical and theoretical significance.


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    Title :

    The Combined Guiding Hole Technology of Large Diameter DTH Hammer and Long Screw-Pile Driver


    Contributors:
    Liu, Qi-Xia (author) / Fan, Liang (author)


    Publication date :

    2012


    Size :

    7 Seiten




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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