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Trenchless construction
Underground construction that involves little or no surface trenches so it has minimal disruption to traffic, business, and other activities. Trenchless technology is a fast growing sector of construction and civil engineering that covers such methods as boring, drilling, tunneling, and pipe ramming.
Industry: Construction
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Trenchless construction
定向鑽進
Construction; Trenchless construction
A 導向系統安裝的管道、 管道和電纜使用表面的淺埋弧推出鑽機。一詞傳統上適用于大多數充液的先導孔鑽孔彎曲-子和背擴管產品所需的尺寸的末尾使用流體驅動電機的過路處。在試點鏜孔的過程中所需的 偏差被提供的彎接頭的定位。鑽柱的跟蹤通過步行超過系統或井下調查工具的使用。 ...
鑽井液
Construction; Trenchless construction
A 混合的水和通常膨潤土和/或聚合物不斷注入市場，以便利切割、 割頭減少所需的扭矩、 方便的岩屑搬遷、 穩定鑽孔、 最酷的頭和潤滑產品管的安裝。可使用單靠水的合適土壤條件。 ...
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