The instability even collapse of tunnel would occur during the construction in soft ground. A collapse of expressway tunnel which suddenly encountered soft ground took place just after completing the anchor bolts was investigated as the study background. Based on the plastic and damage constitutive laws, the numerical method of finite element was funded for analyzing the failure mechanism of an...

Analysis of advanced displacement in construction progress of tunnel excavation with weak surrounding rock is carried out by numerical method and comparison of model test result. In allusion to the problems of regional landslides and extruded large-deformation seriously impacting the stability of rock mass in construction process of large-section tunnel with weak surrounding rock, the elastic-p...

An experiment set-up is used to study wall deposition rate of particles on a rough surface in a turbulent channel flow. Deposition velocities for three classes of particles, namely, spherical glass particles, irregular shape polymer particles, and fibrous silicon particles are studied. The particle concentration at the test section was measured with the aid of an isokinetic probe in conjunction...

The authors comment on the Lanz classification of the median nerve ramification at wrist level. The authors outline the importance of having very good knowledge of this classification for hand surgeons, plastic surgeons and neurosurgeons, in order to prevent iatrogenic lesions of the median nerve branches at wrist level. The regional anatomy is of utmost importance for carpal tunnel syndrome su...

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...

Objective: Postsurgical pyoderma gangrenosum is a rare but potentially devastating condition for surgical patients. While pyoderma gangrenosum has 2 subtypes, typical and atypical, each can be further classified by its heralding features. These include ulcerative, pustular, bullous, and vegetative. The presentation can be a result of trauma or, as mentioned before, postsurgical. The plastic and...