With the improvement of the train speed and the fast development of High-speed and heavy rail, the dynamic Interaction between trains and track structure is increasing, at the same time, the problems of road safety and traveling comforts become serious. Track irregularity is the major reason of vertical vibration for the operating rail vehicles and the disturbance function of vehicle-track sys...

As groundwater over-exploration has been becoming a serious problem in the last 20 years, rain

Because of direct contact between steel lining and surrounding concrete,some cracks would be appear in the surrounding concrete of complete beating spiral case under the internal water pressure.If considering the pulsation pressure,maximal internal water pressure and other special conditions.the strainedcondition of spiral case could be more complex.So the research for stability analysis of su...

During the construction course of the hulls,the flatness and levelness of the hall bases are the key factors that affect the construction quality.The plane of the base may divide into the horizontal plane and the inclined plane,so the flatness of the inclined plane also needs to be measured.Requests to the maching accuracy of the hall base are generally high.The flatness and levelness need to ...

Temperature stress is an important factor for cracking of the concrete box-continuous girder bridge.And the temperature stress which caused by solar radiation has the largest influence.The different temperature gradient is likely to lead to extraordinary disparity of temperature stress.So it will be necessary for us to research thermal field and temperature effect of the concrete box-continuou...

The Maritime Search and Rescue(SAR) Simulator is a complicate simulation system composed of Ship Handling Simulator,Engineer Simulator and GMDSS Simulator.It can be used in maritime SAR training and demonstration.It can also overcome the disadvantage of maritime SAR training in the real rehearsal,which consumes a great amount of human and material recourses but provides limited training chance...

Traffic is vitals to the economic activities of urban, and plays a key role in the city\’s economic development and people\’s living-level improvement. Automobile industry brings a series of problems, such as traffic congestion, environmental pollution and traffic accidents frequently and so on, which not only make people\’s lives and property a big loss, but also have seriou...

The integration technology of heat pipe packaging systems refers to the final process of heat pipe manufacturing which deside the heat pipe rate of finished products and quality. It realized the working procedure automation of pumping、heating、working substance supplies and refilling and so on besides of sealing. It also maximize avoided the unsteadiness by manual operation and ensure the u...

The method of superimposing the contribution of FRP shear strengthening and the Shear capacity of non-reinforced beam to calculate the bearing capacity of FRP shear reinforcement has been used in most study about FRP shear reinforcement for concrete beams.Therefore,the research mainly concentrated in the FRP shear contribution.According to test results,if the construction quality of paste is r...

Present, the time and conditions are ripe for speeding up China\’s urbanization process. Longer period of time the current and future, seizing the opportunity and guiding small cities to develop healthily at right time should be an important task for rural reform and development. A series of policies that are issued by the CPC Central Committee show that speeding up the urbanization proc...