excavation subsidence 中文意思是什麼
excavation subsidence
解釋
採掘塌陷- excavation : n. 1. 開鑿；發掘；挖掘；挖土，剜通。2. 穴，洞；坑道，開鑿成的山路。3. 【考古】出土文物，發掘物。
- subsidence : n. 1. 沉澱；沉下，陷下。2. 平靜，平息；減退，衰耗。
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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 -
Analysis of ground subsidence caused by metro tunnel excavation
地鐵隧道開挖引起地表塌陷分析 -
Study on ground surface subsidence due to underground tunnel excavation
隧道開挖引起地表下沉及其影響分析 -
Ground subsidence, rebound deformation and horizontal deflection were measured, displacements inside the excavated slope were monitored and ground cracks and failure modes caused by extra excavation were investigated
測試內容包括土體位移、地表沉降、基底隆起、地面裂縫及超挖引起的破壞形態。 -
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。 -
Study of land subsidence caused by from groundwater lowering during deep foundation pit excavation
深基坑開挖降水導致地面沉降機理研究
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