水库附近矿山法隧道抗水压衬砌结构研究

目前我国出现了大量的城市下穿隧道,但由于各城市间水文地质条件的差异性较大,既有的工程设计与施工经验不能生搬硬套,而应结合项目自身及周边环境的特点有针对性的展开研究,如何有效平衡地下水的适量排放与衬砌结构安全性、经济性的合理统一,对隧道设计至关重要.但是目前的防排水系统及防水衬砌设计等关键技术在城市地下空间建设过程中研究...

Analysis on Fatigue of Warm Mix Asphalt Mixture

The dissipation energy method and phenomenological method are used to analyze the influence of the warm mix agent on the fatigue life of asphalt mixture. The result shows that the fatigue performance is better overall after the EV warm mix agent is added into the matrix asphalt mixture. The fatigue performance is poor overall after the RH warm mix agent is added into the matrix asphalt mixture. The fatigue performance is reduced at high strain level after the EV warm mix agent is added into the SBS modified asphalt mixture, but the fatigue performance is similar to that of the hot mix mixture.