This paper discussed the positioning of foundation-stakes on Gongbei-port Square,including the necessary of stake po- sitioning,the positioning and orientating of the control net-work of surveys, the application of quasi-adjustment to process the positioning -datum,and some methods to enrich reliability in practice.

In this article,the author introduces the installation technologies of 3 200 cube-meters blast furnace clay gun and taphole drill,including foundation location,equipment installation and debug working.

With more and more super-length concrete structure buildings with the pile foundation have been constructed, the temperature stress of super-length concrete structure has become one of vitally important research topics in structure design This paper elaborates the reason of cracking, and the related theory of pile lateral direction stiffness.

Safety control on pile foundations;

The reliability of the vertical capacity of the pile foundations of platforms is analyzed.

Therefore it is necessary to carry out rational reliability analysis on pile foundations of platforms and develop the Load and Resistance Factor Design (LRFD) that is su.