鉆孔管位 的英文怎麼說
中文拼音 [zhēnkǒngguǎnwèi]
鉆孔管位
英文
pinning hole-
The local directional drilling is just staring in terrane, the equipments and the technologies ca n ' t satisfy far and far the spot construction needs, according to current circumstance and considing the existed equipments, the author put forward drilling by air hammer in terrane, having designed compounded - drilling tools, and recommended technology parameters. producing experiments have obtained good achievements in economic and in techniques
國內定向鉆進鋪管技術在巖層只是剛剛起步，設備、工藝遠遠不能滿足現場施工需要，本文針對國內、外巖層定向鉆進非開挖設備及工藝現狀，結合國內大多施工單位的已有設備，提出巖層空氣潛孔錘導向鉆進工法，設計了適合巖層鉆進的實用鉆具，並提出具有針對性的工藝參數，生產性試驗取得了良好的經濟技術指標。Relacing void former - coring through beams and slabs for the installation of ducts and pies. holes formed by coring will be more precise, fast and help increasing productivity
代替在結構混凝土上留孔-在部份工程因工程關系和時間上須要而不能預先留位以便日後管道安裝之用，則多數曾採用鉆孔之方法以提高工作效率。Based on an actual project, tests and analyses the heat exchanging performances of the vertical u - shaped ground heat exchanger, and obtains the heat release in summer and the heat absorption in winter of ground heat exchanger for unit well depth and the optimal drilling depth
摘要根據工程實際情況，對豎直u形地埋管換熱器的換熱性能進行了現場測試和分析，得出了單位井深地埋管的夏季散熱量、冬季取熱量及最佳地埋管鉆孔深度。
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