bottom liner 中文意思是什麼
bottom liner
解釋
底襯-
Some kind cylinder liner request measure nine parameters : inside and outside diameters in different positions, width of the boss of the part, hydraulic packing trough bottom diameter, shoulder place fillet partial diameter, and so on
某型氣缸套要求測量九個參數:不同位置內外徑，凸臺寬度，以及水封槽底徑和肩臺處的圓角部分的直徑等。 -
1. under the same kind of wall rock and the same condition, displacement of pipe liner is symmetry, for tunnel structure and suffered load are symmetry. as level terra stress is bigger, the maximum of displacement and the first main stress occur in tie - in of pipe liner structure, and its direction is radial and points in hole ; the direction of the third main stress is annular and its maximum occurs in top and bottom hole inner
1 、同一類圍巖在同一種工況下，由於結構和荷載的對稱性，管片襯砌結構的位移也表現出對稱性，因水平向地應力較大，位移最大值、第一主應力的最大值發生在管片襯砌結構的接頭處，方向為徑向指向洞內；第三主應力的方向為環向，較大值發生在洞頂和洞底內側。 -
When there is original stage support only, the load ratio of surrounding rock gets more and more bigger with the increasing of crust stress, correspondingly, the load ratio of initial stage support gets smaller. when the initial stage support and the second support act each other, the load ratio of surrounding rock is more than fifty percent, and it has little change with the increasing of crust stress. the whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration, so do the sidewalls and the foot of a wall of the surrounding rock
通過屈曲理論分析結果對比表明，彈性屈曲和突變失穩分析的結果比非線性屈曲分析的結果要大得多，非線性分析由於考慮了材料非線性和幾何非線性，因而結果與實際接近實際；當只有初期支護時，隨著地應力的增加，圍巖的荷載分擔率增大，相應地，初期支護的荷載分擔率就減小了；當有初期支護和二次襯砌共同作用時，圍巖的荷載分擔率在50以上，這一分擔率隨地應力的增加其變化不大；支護和巖體的整體分析表明，襯砌底拱及拱腳處應力集中嚴重，隧道巖體側墻及墻角圍巖的應力集中也較大。
分享友人