It introduces the construction principle and preparing work of managing soft soil basement by using vibrof lotation method macadam pile,and discusses the construction flow,making pile construction technique,pile setting construction plain sequence and surface management,in the end it analyses the construction quality control of pile,to give a reference to similar project.

The construction principle,technology characteristic and merit of the hammer hidden pipe caisson pile are introduced in this text.

Combined with practical work the design and construction principle of cement injection pile are introduced.

In this paper, the author dicusses property of glass fibre bar,installment method of gridding,construction principle and effect observation example of asphaltum road surface.

Analysis on construction factors caused the quality accident of building engineering and treatment measures;

Study on construction factors influencing engineering properties of borehole cast-in-place pile;

The article mainly analyzes the work mechanism of lateral friction of the cast-in-place pile,summarizes the factors that influence it,namely the shearing strength of the side soil and the construction factor and finally puts forward the commonly-used improvement measures.