The prevention and countermeasures of filling pile pore-forming construction accident;

Construction technology of the reverse circulation bored pile pore-forming;

The paper introduced the features,advantage and inferior of pore-forming and the construction technology of cast-in-place bored pile,attention matters in used the rotary drilling machine.

In this experiment, the elements and techniques of pore forming and interconnection were discussed.

Combined with the spillway reconstruction work of Yanchun reservoir in this paper according to some practical construction technologies such as pore forming of cast in place pile, fabrication of steel reinforcement cage and concrete pouring corresponding quality control measures are proposed in order to ensure the integral construction quality.

The tamping technology, pore forming, quality inspection and other construction techniques in foundation treatment using lime soil compaction pile are introduced, which is a simple and effective measure to eliminate collapsibility, enhance bearing capacity and reduce compressibility of foundation.

Mud Solidification,Hole,Reinforcement cage,reperfusion underwater concrete aspects of a comprehensive exposition are introduced.

This paper union sandy soil area drill hole filling pile construction, analysis the hole,the pile quality question because the construction operation does not work.

The hole building technology of cast-in-site bored pile in riprap layer;

Technical key points are summarized for hole building,steel reinforcement cage construction and concrete pouring in order to increase construction quality of cast-in-place bored pile.

Comparison of the hole forming plan of pre-stressed grouting hole;

In this paper, the questions of the hole forming of the bored filling pile of bridges are analysed with the theory of elasticity mechanics and soil mechanics.