Curing techniques and curing conditions have crucial effects to the strength and durability of concrete. The objective of this experimental study is to examine the strength and resistance to chloride ion permeability of high performance concrete under various curing methods in different simulated arid and large diurnal temperature variation climates. Laboratory experiments were conducted to investigate the strength and electric flux when different curing methods were used. Three curing methods and three simulated climates were applied to concrete specimens. The results show that the difference of measured experiment data are not significant under standard curing (SC), moisture insulation curing (MIC) and thermal and moisture insulation curing (TMIC) in an arid climate. However, the compressive strength and resistance to chloride ion permeability are worse under MIC and TMIC compared with SC in an arid and large diurnal temperature variation due to frost heaving and thermal stress. Moreover, compressive strength and resistance to chloride ion permeability decrease significantly when the large diurnal temperature variation increases and the lowest temperature reduces. The insulation material can effectively reduce concrete temperature variation between near surface and core region. Therefore, TMIC is a better curing method than MIC in an arid and large diurnal temperature variation climate.

The bench method dynamic construction process of Xin Baotashan tunnel which located in the grade IV surrounding rock is simulated by using the finite element method. The variation of displacement and stress field of the surrounding rocks and the internal force of the lining structures during every excavation step is calculated. The state of the surrounding rocks can be predicted by the numerical simulation results, and the construction plan and construction sequences can be guided by the analysis results. At the same time the reasonability and feasibility of the design parameters can be judged by analyzing the internal forces of the lining structures. Analysis and experimental results showed that the stability of the surrounding rocks is good by using the bench method construction to the IV grade surrounding rocks and the design parameters of the lining structures are feasible.

The forms of concrete attacked by sulfate include physical crystallization and chemical crystallization. That affects the durability of concrete as an important factor especially in China's coastal areas and the Northwest region. Similarity theory in concrete by sulfate corrosion can be used to build up the similar criteria, and similar to the process of model design.

The green building is a new concept, risk management is pretty vital, because there are many uncertain factors, this paper firstly analyzes the green building risks, main risk index in green building risk factors at present, set up a scientific, reasonable and feasible risk evaluation index system, structure judgment matrix by the expert scoring method, to make scientific and objective evaluation quantitative on basis of qualitative analysis influence by analytic hierarchy process and fuzzy comprehensive evaluation method, gray system theory was used into green building risk assessment area to get clear evaluation criteria and scientific measure of risk in decision making ,to provide concrete and feasible basis for the green building risk management in phase of the decision-making.

According to the evaluation standard for greening building, an assessment system is proposed to evaluate the green building degree. And the weights of each evaluation index are determined by AHP method. Applying the methods of expert estimations, a fuzzy comprehensive evaluation model is constructed for the building green degree. Combining with living examples, the green degree of a building is calculated based on this method.