力学与南水北调中线工程

MECHANICS AND THE CHINA'S MIDDLE ROUTE SOUTH-TO-NORTH WATER TRANSFER PROJECT

本文介绍南水北调工程重大技术问题中的主要力学问题，在解决重大技术问题的同时，也促进了力学的发展．

The middle route south-to-north water transfer project is a magnificent engineering of transcentury.It is characterized by a long route of water diversion and many structures of large size. For this reason, mechanics problems of the project are relatively complex and extremely difficult. Some of them have not yet encountered in the past. This paper described problems such as: hydraulic problems, including ice-hydraulic problems; river dynamic problems, including the engineering measures of main channel crossing over a wide and shallow river, the interaction between the crossover structure and the river, change in river regime of the middle and lower reaches of the Han-River after the water diversion; the structural mechanics problems, including the structural mechanics of large-sized tunnels and aqueduct bridges, system reliability of structures; soil mechanics problems, including the side slope stability of some special soils, property of soil surrounding a large-sized tunnel,pile foundation of large-sized aqueducts and the effect of frost upheaval in soil. On the other hand, this paper also stressed that mechanics development will be promoted by solving major technical issues of the project, improvment in the theoretical level, simulation method and measuring techniques.