This article based on the underground construction psychological environment characteristic proposes the underground construction space shape design needs to solve question,and discusses the underground construction space shape design question from the spatial combination way,the internal space design and the essential factor design.

Regional differences and spatial combination of water resources carrying capacity(WRCC) and land resources carrying capacity(LRCC) can be used as an important reference to the sustainable use and optimal allocation of water and land resources.

The article points out the requirements of designing each functional space and dwelling floor space combination of the house,and discusses the rationality,flexibil-ity and comfort of the dwelling floor space combination through case study.

It focus on the regions including cities and towns, countryside and eco-space, and the main issue is how to make a good relationships between cities and towns, between urban construction and ecological environment in an increasingly competitive circumstance, and explore the principles and methods of urban group space combination.

This paper persents the method of continuous beam based on elastic supports,which helps to calculate coefficients of load lateral distribution of spatial girder and arch combination bridge.