The Structure Of The Steel Sheet Pile Design Calculation And Construction Technology Research

In dongguan humen,shatin,Hong Kong port area west temple areas barges project as the background,in view of the composite system of steel sheet pile design calculation,construction plan and project quality control technology research,the main research results are as follows:(1)Due to the particularity of the steel sheet pile structures,domestic no relevant specification is available for reference.The author on the basis of a large number of literature,in combination with related specification to carry out the analysis and calculation.Research and analysis of several former wall calculation method,and finally determine the method of vertical beam on elastic foundation of engineering application of the load calculation.In normal use limit state for analysis in this paper,we establish the model of combination loading.Calculate the main contents include: kicking stability calculation,the effect of envelope value calculation,anchorage calculation and structure design,etc.On the basis of in-depth analysis and calculation results,gives a standard of engineering profile and special profile,these drawings can be directly applied to practical engineering.(2)According to the special geological conditions,the project research project in a variety of hammer type,at the beginning of the steel sheet pile to play when choosing DZJ-135 vibration hammer,confirmed by practice DZJ-135 vibration hammer to adapt to the soft soil foundation at the beginning of the play.Steel sheet pile redriving hammer type,the D100 impact hammer,several APE200 hydraulic vibration hammer hammer type site construction comparison,based on a large number of the test results of sheet pile with APE200 hydraulic vibration hammer to complex construction.Solved to adapt to the special geological hammer.In addition,in order to ensure the steel sheet pile verticality in the process of pile sinking,by studying the formation of the construction process of the following: the developed specific positioning frame,can control verticality in the accuracy of 2‰.Through the plane offset of pile foundation detection,results show that the construction technology of this paper is effective.To ensure the construction quality of pile foundation and the smooth completion of the project provides the technical support.(3)The research before the steel sheet pile wall construction quality assurance measures.Factors influencing the pile construction quality is more,from the construction technological process,the steel sheet pile pile driving construction hoisting process,order,etc,the main technical points of the pile driving construction quality control.Strictly control the starting location of pile plane position and verticality,quality inspection standards,according to the rules of pile driving the whole process of quality testing.In order to ensure the durability of engineering must be carried out on the steel sheet pile the embalming process.Due to the steel sheet pile corrosion protection in the field,to guarantee the quality and construction will be inevitable in the coating damage,developed the construction process to ensure the quality of anti-corrosion technology.