1、传统砖砌暖沟岩棉保温的施工工艺：挖沟 2×2 （ m ） 打混凝土垫层 → 埋设暖气管 角钢支架 → 钢管除锈 → 刷漆防腐 → 加工固定 卡 → 钢管焊接 → 钢管固定 → 水压实验 → 岩棉保 温 → 缠玻璃布 → 刷沥青漆 → 盖沟盖板 → 回填土。
1. The traditional construction technology of rock wool insulation in brick warm trench is as follows: digging trench 2 x 2 (m) to lay concrete cushion, laying angle steel bracket of heating pipe, removing rust from steel pipe, painting and anticorrosion, processing and fixing clip, welding of steel pipe, steel pipe fixing, water pressure test, rock wool insulation, wrapping glass cloth, brushing asphalt paint, covering plate of trench, backfilling soil.
其中还有挖沟取土的运输与倾卸置放，砂 石 、 水泥 、 砖块 、 角钢 、 岩棉 、 沟盖板等的采购和 运输 。 施工触及面大，中间环节多；占领施工场 地大，施工工期长，而且岩棉在施工和运输过程 中损耗率达10%以上 。由于岩棉纤维对人体皮 肤和呼吸道有激烈的刺激性，必需采取必要的劳动维护措施 。
Among them are the transportation and dumping of digging trenches for soil, the purchase and transportation of sand, cement, bricks, angle steel, rock wool, trench cover, etc. The construction touches a large area with many intermediate links, occupies a large construction site and has a long construction period, and the loss rate of rock wool in the construction and transportation process is more than 10%. Because rock wool fibers have intense irritation to human skin and respiratory tract, it is necessary to take necessary labor maintenance measures.
2、聚氨酯直埋保温管的施工工艺：钢管试压 → 除锈 → 硬质聚氨酯直埋管制造（以上工作在工厂停止） → 现场挖沟 → 直埋管焊 接 → 水压实验 → 现场发泡 → 回填土。
2. Construction technology of polyurethane direct buried insulation pipe: steel tube pressure test rust removal rigid polyurethane direct buried pipe manufacturing (above work stopped in the factory) digging trench welding of direct buried pipe water pressure test foaming backfill soil.
聚氨酯直埋保温管的制造和施工完整能够平行停止，能够在施工现场挖沟是在厂家消费，运输到后直接停止焊接。大大缩短了施工时间。
The manufacture and construction of polyurethane direct-buried insulating pipe can stop in parallel, and digging ditches in the construction site is consumed by the manufacturer, and welding can stop directly after transportation. The construction time is greatly shortened.
这种办法在缩短施工时间的同时，还省去大量的人力物力，而且聚氨酯直埋保温管由于其外抗腐蚀层的良好特性，在运输中过程中根本没有损失。所以聚氨酯直埋管在管道运输行业遭到了人们的欢送。
This method not only shortens the construction time, but also saves a lot of manpower and material resources. Moreover, the polyurethane direct-buried insulating pipe has no loss in transportation because of its good external corrosion resistance. Therefore, the direct buried polyurethane pipe has been welcomed by people in the pipeline transportation industry.
