管子下入管沟后，由侧铲推土机或装有回填附件的拖拉机回填管沟。
Backfilling the trench following the lowering-in of the pipe is carried out by angledozers or backfilling attachments to tractors.
由于它本身能抵抗较大的外荷载，使其不须依赖土壤的侧向支撑，因而对回填土要求较柔性管低。
Its capacity of resisting large external load enables it not to rely on lateral support of the soil, therefore its requirements on backfilling soil is lower than on flexible tubes.
如地下水中遇到的，它应保持低于管的方式抽水，直到管道已得到令人满意的测试，并回填。
Where ground water is encountered, it shall be kept below the pipe by means of pumping until the pipe has been satisfactorily tested and backfilled.
试验研究了两种不同回填材料地埋管换热器的热响应性能、地源热泵运行对地源温度场的作用。
Heat transfer performance of different backfill materials and temperature field variation of ground-coupled heat pump system are studied.
该工法包括回填和固结灌浆、管棚加固、控制爆破和喷锚等工序。
This method consists of the following procedures: backfill, consolidation grouting, reinforcing by the pipe and strut method, controlled blasting and anchor bars.
在回填土壤的应力作用下，管道在3∶00 ~ 9∶00时钟位置的石油沥青防腐层容易出现剥离并屏蔽阴极保护，导致管体腐蚀。
Due to the stress of backfilled soil, the asphalt coating at 3:00-9:00 (clock position) is easily disbonding and the CP is shielded, which results in the pipe body corrosion.
在回填土地区进行管道施工，应根据回填土的性质，对管底及管顶的回填土进行处理。
During the pipeline construction in backfill soil area it is needful to treat backfill soil around pipeline according to property of backfill soil.
如何采取有效的手段保持管沟回填土，是涉及管道正常运营的大问题。
How to make the backfilled soil of pipeline trench stabilized in an effective manner is a major concern for the normal operation of pipeline.
如何采取有效的手段保持管沟回填土，是涉及管道正常运营的大问题。
How to make the backfilled soil of pipeline trench stabilized in an effective manner is a major concern for the normal operation of pipeline.
应用推荐