• Thermo-mechanical model of shield tunnel segmental joint in fire is proposed and verified. Heat flow invading through the discussed quantified. Bolt location axial load are both critical for safety. The most component determining mechanical response concrete linings a shield-tunnel structure. Existing models have been developed mainly analysis lining design, but event fire, conditions that ma...

The productivity prediction of gas wells in carbonate reservoirs is greatly affected by the characteristics gas–water two-phase flow and fracture seepage parameters. Compared with numerical simulation, based on analytical model fast widely used, but traditional fairly simplified while dealing nonlinear problem equation, leading to a large discrepancy results dynamic analysis. To solve this prob...

Understanding fluctuation-induced breakages in polymers has important implications for basic and applied sciences. Here I present for the first time an analytical treatment of the thermal breakage problem of a semi-flexible polymer model that is asymptotically exact in the low temperature and high friction limits. Specifically, I provide analytical expressions for the breakage propensity and ra...