非开挖水平定向钻技术在道路工程污水管道铺设中的应用-期刊之家 关键词：非开挖施工 道路工程 管道铺设 [gap=204]Key Words: trenchless construction; road works; pipe laying
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trenchless pipeline construction 非开挖管线施工
And each process of project construction has been given a sufficient and aborative analysis. So it can guide trenchless construction in rocks.3.
2、在岩层中进行非开挖研究,非常全面的提出了一条工程施工设计路线,从轨迹设计、导向孔施工到管道回拉等,都做了充分的分析,这对岩层中进行非开挖施工具有指导价值。
参考来源 - 岩层中定向钻进非开挖铺设地下管线的研究及应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Trenchless construction faces significant risks as underground uncertainty, especially in a congested city.
由于地下的不确定性，特别是在拥挤的城市，非开挖施工常面临极大的风险。
Trenchless construction faces significant risks due to uncertainty underground, especially in a congested city.
由于地下的不确定性，特别是在拥挤的城市，非开挖施工常面临极大的风险。
The dropping buckle usually occurs when reverse pulling is used for expanding the bore in the trenchless construction, thus causing the fall-off of the drilling tools.
非开挖反向回拉扩孔施工过程中时常出现钻杆正转而发生退扣，造成钻具孔内脱落事故的反常现象。
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