The paper puts forward the corresponding countermeasure in according with existed ice issue of hydraulic and hydroelectric project during construction in the frigid zone for provide the thinking and the reference engineering measures and non - engineering measures to deal with ice slush during project construction.

Research on Heuristic Algorithms for the Two-dimensional Packing Problem;

A quasi-human algorithm was proposed for solving the cuboid packing problem in real life,whose main idea was to formalize the Chinese life experience formed in the past five thousand years by the western modern mathematical tools to develop it.

Packing problem is NP complete,this paper uses an immune genetic algorithm to solve it.