3-D numerical analysis of settlement of City Wall of Ming Dynasty of Jiu-huashan tunnel traversing position;

The paper puts forward the FAHP method to determine the pipeline crossing program instead of AHP method,and considers the FAHP method as simpler than the latter.

The pipeline crossing project has the features of long distance,steep slope and complicated circumstances.

s By taking the pipeline crossing as a practice example,the writer expounded the principle &method of earthless cofferdam technique and introduced the determination method of cofferdam location,skeleton structure of cofferdam,lay down of support board &waterproofing measure etc.

To improve pipe laying technology, the author introduces related choices of PE pipe, across-river engineering, steel pipe construction and regulator installation.

Aseismic reliability of traversing pipelines based on soil liquefaction analysis;

On the basis of analysing the Web topical features and the shortcomings of the general tunneling technology,this paper raises the algorithm using topical similarity to guide the web crawler though tunnels,and improves the accuracy of topical similarity using the Naive Bayesian classifier.