2020-5-12

A new research article entitled "Active Earth Pressure of Limited C-φ Soil Based on Improved Soil Arching Effect" has been published in Applied Sciences. This study was a collaboration between the research group and Shenzhen Metro Group Co., Ltd. The c-φ soil of limited width between a deep retaining structure and the adjacent large rigidity existing underground structure is very common in a dense underground environment. An analytical model for the earth pressure distribution and for the width boundary of a limited c-φ soil by considering soil arching effect was proposed in this study. The analytical model was verified by comparing with numerical simulations, traditional theoretical methods and model tests. The smaller of the limited soil width, the more sensitive it is to earth pressure. Ignoring the influence of soil cohesion and the limited width will exponentially reduce the overall stability of the retaining structure and increase the risk of accidents.

2020-04-05

I was invited to be the lead editor to organize a special issue "Digital Twin Technology in the AEC Industry" for Advances in Civil Engineering. Jia-Rui Lin from Tsinghua University, Jiansong Zhang from Purdue University and Qian Wang from National University of Singapore are co-organizing this special. The deadline for submission is Aug. 7, 2020. Welcome to submit your manuscript for potential publication. Please refer to this link for full details. 

2020-04-04

The novel coronavirus (COVID-19) pandemic is the most serious public health emergency in China since its establishment. In the severe struggle against the epidemic, a number of medical staff, cadres and workers, and a large number of communities unfortunately died on duty. Today is the Tomb Sweeping Day in China, therefore the dead compatriots were deeply mourned by the Chinese people of all nationalities throughout the country.

The dead rest in peace, and survivor endeavour!

2020-3-21

The kernel research achievement A BIM-based Dynamic Construction Management System (4D-BIM) has been added to the "Products" section.

The system combines the BIM and 4D technologies and adopts the international standard IFC (Industry Foundation Classes). By studying the IFC-based structure, definition and modeling/sharing/integrating technologies for BIM, the construction model and the site model are linked to the schedule, resource, safety, quality and cost information to eastablish the IFC-based 4D-BIM model. Then the 4D-BIM model enables BIM-based integrated management, realtime control and dynamic simulation for scheudle, resource&cost, safety&quality, site&facility of a construction porject. Up to now, more functions have been embedded in the system to be suitable to not only buildings, but also bridges, wind plants, metros, tunnels, highways and MEP engineerings, etc.

2020-3-20

The research team reported the progress of the sub-project "A light-weight platform framework and interface technology based on GIS/BIM". The sub-project belongs to the 13th 5-year project "Key technologies for design and construction of rural residentials" - "Application information platform for design and construction of rural residentials". In the past year, we established the framework and basic workflow for data process, studied the fusion and exchange technologies based on BIM/GIS, and developed a web-based GIS/BIM model visualization platform. The key contributions include proposing a web-based data fusion and visualization schema for BIM/GIS model, and support the dispersal behavior analysis of contaminants at the pedestrian level under wind environment.