Pipe sticking phenomenon appears sometimes during pull-back stage of pipeline crossing with horizontally directional drilling, which results in crossing failure and great economic loss.
在水平定向钻穿越管道回拖环节中，容易出现卡管现象，导致穿越失败，造成巨大的经济损失。
This string of pipe may be very long, depending on the width of the crossing.
根据河流宽度，穿越管道可能很长，需要多根管段。
The aseismic test of buried pipe crossing fault is conducted. Some m.
首次进行了跨断层埋地管道抗震试验。取得了一些有益的结论。
The ramming pipe drapery is used for support to construct the crossing structures of underground passage, blind channel and etc.
用夯管帷幕作为支护来建造地下通道、暗渠等穿越构造物，在城市建设中是一项新的施工工艺。
In recent years, The large-scale open-ended steel pipe piles have been more and more widely applied in large scale deep water docks, Sea-Crossing Bridge Projects.
近年来，在大型深水港码头、跨海大桥工程中，大型开口钢管桩已得到越来越广泛的应用。
As protective pipe of pipeline crossing, casings can protect the protective coating of inner pipeline very well.
套管作为管道穿越处的保护管，在穿越时能对管道的防蚀层起到很好的保护作用。
The subway crossing project through Hongxu Road in Shanghai is the pipe-roof project with the biggest cross-section box culvert up to now in the world.
上海市中环线虹许路北虹路下立交工程是目前世界上在饱和含水软土地层中施工的横截面最大的管幕法工程。
The utility model relates to a pipe laying machine by drilling and crossing, which is a machine used for drilling and crossing the existing buildings and laying pipes.
一种钻孔穿越铺管机是钻孔穿越已有建筑物并铺设管道的设备。
Both wet and dry underwater welding operations are presented to repair the burst at the welding seam of large size crossing steel pipe.
介绍了大口径过河钢管接口焊缝爆漏现象，以及湿法和干法水下焊接修复技术。
For the crossing section design of the pipe-in-pipe systems, it is necessary to consider the stress-strain initiated by crossing configuration and check the vertical stability of the crossing section.
双层海底管道的跨越设计既需要考虑跨越构形引发的应力应变，也需要充分校核管道跨越段的垂向稳定性。
According to the complication of pipe-jacking crossing the Yellow River some techniques such as twin-pipe joined without hinging, relay ring, slurry damper are applied.
针对济南市引黄供水穿黄顶管的复杂工况，详细介绍了以二段无铰式工具管为头部的顶管施工工艺及中继环、泥浆减阻等先进技术的使用。
According to the complication of pipe-jacking crossing the Yellow River some techniques such as twin-pipe joined without hinging, relay ring, slurry damper are applied.
针对济南市引黄供水穿黄顶管的复杂工况，详细介绍了以二段无铰式工具管为头部的顶管施工工艺及中继环、泥浆减阻等先进技术的使用。
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