Research on control technology of automatic welding for jacket pile pipes;

In our country,even in the world,arc welding with welding rods has been used to connect platform jacket and pile pipe together for a long time,which has low welding efficiency and heavy labour intensity and becomes one of the bottlenecks affecting project progress.

The stress analysis and calculation are made on pile pipe buckling during marine pile driven construction for Chengdao Western EDC central jacket platform based on the rule of "The Recommendation of Plan, Design and Construction of Fixed Offshore Platform - Operational Stress Design"(API RP2A-WSD).

Key points of quality management in the production of tubular pile as well as the suggestion on the establishment of industry supervision;

Technology and application of tubular piles back grouting

Soft soil foundation reinforced by tubular pile is a type of rigid cushion composite foundation under flexible base,and it is different from flexible cushion composite foundation under rigid base.

Propagation characteristics of transient waves in low strain integrity tests on cast-in-situ concrete thin-wall pipe piles;

Analytical solution of dynamic response of cast-in-situ concrete thin-wall pipe piles under transient concentrated load with low strain;

Study on the treatment of floating of static pipe piles;

Introduction to building material standard of silica powder for prestressed spun high strength concrete pile;

On technical regulation for DBJ 04-273-2009 prestressed concrete pile foundation

The settlement behavior in open-end and close-end piles was discussed in this paper based on the force-settle-ment test with eight specimens.

Causes of breakage of tube pile and practical study on rectification-joining method;

An application of sinking Pile of dilling to lead the hole in solving the broken pile of the tube pile;

Due to the difficulty of construction quality control,application of tube pile foundation has been restricted in limestone zone.