mechanized pipe pushing 机械化顶管
pipe-pushing process 顶管技术
pipe pushing technologies 顶管工艺
pipe pushing construction 顶管施工
Survey for pipe pushing 顶管施工测量
In ordinary stripping operations, the pipe falls into the wellbore under its own weight, and no additional downward force or pushing is required.
在平常的不压井起下钻作业中，管柱下入井眼是依靠其自身重量，不需要附加的向下载荷或者推力。
According to different types of constructions, the concrete methods of rock blasting technology of pipe pushing are discussed.
针对不同的工程类型，探讨顶管穿越石方爆破的具体方法。
After taking the proper measures, the construction of pipe pushing has been successfully fulfilled.
在采取了相应的有效措施后，顺利完成了顶管施工任务。
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