back filling soil 中文意思是什麼

back filling soil 解釋
回填土
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • filling : n. 1. 裝滿，填裝；填補。2. 填料；填土。3. （糕點內的）餡。4. （織品的）緯紗，漿料。
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  1. 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
  2. As soon as the tunnel boring machine advances 1m forward, 6 pieces of pre - cast concrete segment are fabricated and forming a ring with internal diameter of 5. 6m to support soil outside, while simultaneous back - filling and 32 - hole chemical grouting injector equipment installed with tunnel boring machine consolidating soil instantaneously to enhance the soil strength. the tunnel boring machine is also equipped with guided top gyroscope and true circularity retaining device for construction accuracy

    其中值得一提者，板橋土城線所採用之潛盾機系新型之土壓平衡式機種，具同步背填灌漿之功能，對地表沉陷之控製成效優良，目前已貫通並通過民房及商業區下方之下行隧道其初期沉陷均控制在5mm之內，二次沉陷及最終沉陷平均總量最大亦僅18mm ，遠優于初始設計的警戒值30mm 。
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