BACKGROUND Anatomic tunnel positioning is important in anterior cruciate ligament (ACL) reconstructive surgery. Recent studies have suggested the limitations of a traditional transtibial technique to place the ACL graft within the anatomic tunnel position of the ACL on the femur. The purpose of this study is to determine if the 2-incision tibial tunnel-independent technique can place femoral tu...

• A simplified model is developed for tunnel-soil-building interaction problems. The soil response represented by a nonlinear Winkler model. soil-foundation provides good match with 3D finite element analysis. Frictional sliding at the interface significant mechanism. Shallow tunnel construction inevitably causes local ground movements to occur. In an urban environment, these may cause damage e...

The application of mine method shallow burying and undercutting in subway tunnel engineering is becoming more significant, but also has its own limitations: the can easily cause subsidence nearby surface, there a security threat to surrounding buildings, instability inside, easy collapse construction tunnels, endangering safety, so ensuring safety becomes key project. By combining examples Heyi...

The deformation control effect of loess tunnel composite foundation plays an important role in optimization design and reinforcement evaluation. Systematically evaluate the adaptability jet grouting pile shallow collapsible tunnel. Taking buried section Fujiyao Tunnel with a depth 20 m as example, using MIDAS finite element numerical simulation software, during construction settlement after are...