This paper presents the alternative of locate mode for main pier 7 of Nanjing Dashengguan Changjiang River Bridge,including the design and arrangement of anchorage system,and construction techniques for accurate location of the cofferdam.

This paper presents the study of construction scheme for large-scale deepwater foundation, including the alternative of locate mode for double-wall steel boxed cofferdam, design and arrangement of heavy anchorage system.

Taking the construction of sunk anchorage system of the deformed double wall steel cofferdam of Wuhan Junshan Changjiang River Highway Bridge as the actual example,the paper intorduces the construction technology of the anchorage system of the largest steel cofferdam in the same kind of bridges in China.

Design and Construction of the anchor system for the large steel cofferdam of bridge pier of Wuhan Junshan Yangtze River Highway Bridge are introduced.

The design and construcion of open caisson at anti impact island of the Humen Bridge auxiliary shipping channel are introduced,the design computation and constrution about manufacture of steel wall open caisson,anchor system,open caisson sinking,mud jacking concrete at well wall and well bottom are clearly introduced .

It can be extensively used in component-based systems and distributed systems ,providing efficient substrate transport platform for information exchange between components and applications.

Some characteristics of component-based system make it unsuitable to be tested by traditional testing way.

Some characteristics of component-based system make it hardly to be test by traditional way.