隧拱下沉 的英文怎麼說

中文拼音 [suìgǒngxiàchén]
隧拱下沉 英文
sagging of vault
  • 隧 : Ⅰ名詞1. （隧道; 地道） tunnel; underground pass2. [書面語] （道路） road3. （郊外的地方） suburbsⅡ動詞[書面語] （旋轉） turn
  • 拱 : Ⅰ動詞1 （兩手相合 臂的前部上舉） cup one hand in the other before the chest 2 （環繞） encircle; ...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 沉 : Ⅰ動詞1 （沉沒; 墜落） sink 2 （沉下 多指抽象事物） keep down; lower 3 [方言] （停止） rest Ⅱ形容...
  1. On the basis of the practice on work of extra - insufficient control and the subsidence of vault and the earth ' s surface, cases of engineering surveying techniques applied in the construction supervision in tunnels are discussed

    摘要通過超欠挖控制、拱頂下沉、地表下沉的工程實踐，討論在隧道施工監控量測中工程測量技術的應用情況。
  2. Construction of flat tunnel of large span at extra - shallow depth must be conducted on the principle that advance grouting should be strictly performed before excavation and length of pull at one time should be short, together with reinforced support, immediate closing and constant monitoring and surveying. that preceding pilot tunnels, large - volume excavation divided into small ones, excavation of flank before that of center, upper before lower, arch before wall etc is a good method which could effectively reduce surface subsidence and its adverse effect on adjacent buildings, in addition, some other measures are also taken to lessen blast - induced vibration in the ground and surrounding structures. in a word, all means and steps mentioned above have already proved effective and practicable in practice

    軟弱大跨超淺埋扁平隧道必須按「管超前，嚴注漿，多分部、短開挖、強支護、快封閉，勤量測」的施工原則進行施工，採用「眼鏡超前，化大為小，先側后中，先上後下，先拱后墻」的施工方法控制地表沉降和對周邊建築物的影響；採用「多分部，化大為小，短進尺，密布眼，弱裝藥，設減振槽」 ，控制爆破振動，經過實踐證明，這些方法都是行之有效的。
  3. Thus, two 2d elastic finite - element models of tunnel are respectively established, both of which go through i wall - rock sector and wall - rock sector by means of large - scale finite element software ansys. thereby, the magnitude of wall stress, displacement, submergence of arch roof and terrestrial sedimentation in tunnels will be attained via numerical simulation of the whole construction process

    通過運用大型通用有限元軟體ansys ，分別建立隧道穿越類圍巖地段和類圍巖地段的兩個二維彈塑性有限元模型，進行施工全過程的數值模擬，得到隧道中墻應力和位移以及拱頂下沉和地表沉降值。
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