拱应力 meaning in English
arch thrust
Examples
- Similar physical simulative study in state of pressure equilibrium and arch stress
压力平衡拱应力状态相似物理模拟研究 - Combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao - xin line of chongqing light railway , it is set forth the methods about choosing the support system and its parameter , digging methods of underground space , measuring and testing methods for the stress of the support system ; the testing results and variation pattern were analyzed for the stress of the initial supporting i - steel axial stress of bolt , stress of shot - concrete , supporting pressure of temporary i - steel and stress of steel of the second lining , then , the reason for deformation of the support system induced by sharp increase of i - steel was determined
摘要结合重庆市轻轨较新线大坪车站大跨度地下空间dk7 + 692断面施工支护体应力监测的工程实例，阐述了该大跨度地下空间支护结构的参数选择、地下空间的开挖方法、支护体结构的应力量测方法及测试手段；分析了支护体初期支护工字钢拱应力、锚杆轴力、喷射混凝土内应力、临时工字钢支撑应力、二次衬砌钢筋应力等测试结果和变化规律；确定了工字钢拱应力急剧增大而可能引起支护体系失稳的原因。 - The plane - wave analytic solution of the coupled fluid - air - solid system and the fem model of air cushion isolations are applied to study the influence of air cushion on earthquake response of dams . the calculations show that air isolation will reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquakes . if the dam and reservoir is isolated by air cushions , it will decrease the hydrodynamic pressures by more than 90 % and the seismic stresses by 20 - 30 %
将本文首次提出的水体-气体-结构系统的平面波作用理论解和三维有限元模型，应用于溪洛渡双曲拱坝的抗震安全性和气幕隔震可行性研究中，表明气幕对高拱坝具有良好的隔震性能，可降低动水压力90以上，坝体地震拱应力20 30 ，减震效果显著，并使坝体的抗拉安全系数从0 . 93提高到3 . 58 。