Aimed at the ecological protection and vegetation restoration in the Qinghai-Tibet railway construction,an experiment of vegetation restoration in the gravel-soil-taken field of alpine steppe along the Qinghai-Tibet Railway was carried out.

Application of 3S technology to the planning and designing of taking sites of soil and waste for the road construction project;

Stress path and influence on strength by QOCR induced during soil unloading were analyzed in this paper.

Under the soft soil geotome,the controlled condition,may use during the engineering geology exploration,this article elaborated the soft soil geotome\'s technical parameter and the structural feature,the soft soil geotome applies in the Qitai River Training college synthesizes the building and the library building,has made the good progress.

This paper presents the protective measures of water and soil conservation on the basis of construction material site in the building construction of the railway.

The effect of NdFeB particle size, alignment magnetic field, alignment time and powder volume fraction on the properties of injection molding anisotropic bonded NdFeB magnet was investigated,and the reasons was also analyzed.

The effects of surface modification of NdFeB powder, alignment magnetic field and powder volume fraction on the properties of injection molding anisotropic bonded NdFeB magnet were investigated with the magnetic injection molding machine designed by ourselves.

The dependence of the hard magnetic properties of anisotropic Nd(Fe, Co)B bonded magnets made from HDDR powders on the alignment magnetic field is studied.