The model tests on the interaction between new constructions and adjacent existing buildings were summarized and analyzed from four aspects: the preparation methods of the model soil, the selection of pile model and tunnel model, the simulation methods of excavation process, and the loading methods of model tests. Several conclusions can be drawn as follows: (I) the influence of the superstruct…
Using the practice of Ningbo high-speed railway station transportation hub as an example, we studied and reported on the key technologies for the construction of an urban railway transportation hub that integrated the functionalities and structures of a railway, subway, city bus, and taxi stations for traffic and passenger transportation. Specifically, we first studied the impact of deep founda…
The cutter ring breakage as a cutter failure mode in shield tunnel construction is more likely to occur in the centre zone of cutterhead. Given the inconsistence of this phenomenon with the linear cutting theory, the present paper suggests the use of the circular cutting theory to explain the cutter ring breakage and find the correlation between the unbalanced side force and cutter ring breakag…
Proceedings of sessions of GeoShanghai 2010, held in Shanghai, China, June 3-5, 2010. Hosted by Tongji University, China; Shanghai Society of Civil Engineering, China; Chinese Institution of Soil Mechanics and Geotechnical Engineering, China. In cooperation with Alaska University Transportation Center, USA; Geo-Institute of ASCE, USA; Deep Foundation Institute, USA; East China Architectural Des…
In this study, Sasobit was used as an additive into asphalt. Different ratios of Sasobit (2%, 3%, 4% and 5% by mass of asphalt) were blended into base asphalt Pen. 60/80. The conventional tests, such as penetration test, softening point test, viscosity test, and constituent test, were carried out on asphalt mixed with different additive contents. Attempts to approach the influence of Sasobit on…
Through the dynamic triaxial tests of the tailings material taken from a copper mine, dynamic strength and residual deformation are studied. It is indicated that: the dynamic strength will increase with confining pressure and consolidation stress ratio. The related curves of dynamic shear stress ratio and vibration times have good normalization under different confining pressure. Whether iso…