tunnel vault 中文意思是什麼
tunnel vault
解釋
隧道拱頂-
Pass through mechanical model calculate, discover the vault and arch foot part in the tunnel secondary lining thickness is weakness part, so at the design and construction must strengthen these part
通過力學模型計算，結構在拱腳與仰拱交接處以及拱頂部位為隧道二次襯砌混凝土結構的薄弱部位，設計和施工時應著重加強。 -
At the part vault and arch foot in the tunnel secondary lining thickness, the standard difference and variance parameter is large than others, so insure the part thickness achieve design require by adjust construction craftwork
隧道二次襯砌厚度在拱頂和拱腳的部位的標準差和變異系數較大，在施工中應該考慮調整施工工藝，確保這兩個部位的厚度。 -
Due to exceedingly flat arched vault of the flat tunnel with outsized span and renewed stress allocation in surrounding rock after excavation, which would inevitably induce some excessively large load on the base of arch, therefore, larger load - bearing capability in the is " foundation is a must. on the other hand, smooth face explosion must be applied to excavation of the arch base to further ensure the integrity and continuity of country rock around tunnel
特大跨超淺埋隧道拱部結構過于扁平，開挖后發生二次應力分佈，拱腳處的應力過大，要求有較大的地基承載力，拱腳開挖時必須採用光面爆破，保證圍巖的完整性和不受擾動，開挖后及時封閉，防止該處積水軟化圍巖。 -
Inquiring into vault and surface subsidence control in excavation of tunnel with shallowly - buried back filling soil
淺埋回填土隧道開挖的拱頂和地表沉降控制探討 -
The principal stress value arised alteration, the magnitude of stress closed to 25 ~ 32mpa, its influence scope was within the scope outside of tunnel opening 10 ~ 15 meter, maximum tense focused at vault and middle of floor about half meter. shearing stress focused at corner of vault and wall, always been sheared
主應力量值也發生了較大改變，壓應力可達25 32mpa ，其影響范圍在隧道邊墻外10 15m ；拉應力集中在拱頂和底板中部約0 . 5m范圍內，最大可達10mpa ；在拱腰和墻腳常為剪應力集中區，易發生塑性剪切破壞。 -
Danbi bridge is actually the main road in the temple of heaven between the hall of prayer for good harvest and imperial vault of heaven. it is 360 meters long and 29. 4 meters wide. a tunnel passes through under the path, so it is called a bridge
丹陛橋是連接祈年殿和皇穹宇的南北大道，長360米寬29 . 4米，因道下有一隧洞與其交叉，故名橋。 -
The zone between vault and center partition of multiple - arch tunnel being seriously loosen is revealed and the loosen range comes to 2 diameters
揭示了連拱隧道拱頂與中隔墻頂之間壓力鬆弛最為強烈，鬆弛范圍可達2倍洞徑。 -
Tunnel vault and the surface of the side wall, play a firing prevention and heat insulation protecting roles, prevent the armored concrete reducing its intensity when the temperature rapidly heating up because of fire, avoid the tunnel from exploding and protect effectively the lining reinforcing steel bar not to lose supporting capacity so as to avoid the tunnel collapsing
隧道防火塗料塗噴在隧道內的拱頂和側壁的表面，起防火隔熱保護作用，防止隧道內鋼筋混凝土在火災中迅速升溫而降低強度，避免混凝土炸裂、有效保護襯內鋼筋不會失去支撐能力而避免隧道垮塌。
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