bored casing 中文意思是什麼
bored casing
解釋
井孔套管-
Pier 3 - extension of steel casing for bored piles construction
3號橋墩-建造鉆樁中的鋼套接駁工序 -
Abstract : this article discusses the formation of the drilling rig platform, selection of the hole forming equipment and treatment of some incidents occurred during the construction of the bored pile foundation of the qi ? ao bridge in zhuhai under different geological conditions. it also studies such issues as the embedment of the steel casing and bottom elevation of the bored pile on the inclining rock and katarock
文摘:筆者介紹了淇澳橋主橋鉆孔灌注樁基樁施工中,在不同地質條件下,水上鉆機平臺的搭設、成孔設備的選型、事故的處理,並對鋼護筒的埋設及破碎帶傾斜巖面上鉆孔嵌巖面上鉆孔樁孔底標高問題作了探討
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