Through discussions on pipeline positioning, pipe type selection, crossing over obstacle, pipe foundation treatment and earthquake resistance of pipe some matters needing attention in large diameter water supply line engineering and corresponding measures should be adopted are proposed in order to raise the design quality.

This paper introduces the construction technology of digging groove in the sea sludge layer, the pipeline foundation of which is made of stone powder.

Connecting with engineering examples, this paper expounds the problems occurring in the course of the arrangement and implement of urban water- supply pipe network such as the determination of the pipe location, the use of the pipe materials, the treatment of the pipeline foundation, the subsidiary facilities, etc.

A very common practice in applications of Pavement Management System (PMS) is to upgrade the existing Road Infrastructure Management System (RIMS) by embedding advanced Decision Support System (DSS) as a module.

This paper introduces the damage reason with tract foundation under 120 tons converter and presents the restructuring plan, which include resolving the loose problem about tract foundation under converter, orbit deformation and the out-of-gear between the built-in fitting and concrete.