Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large polyethylene pipeline connection construction method
The invention discloses a large polyethylene pipeline connection construction method, and belongs to the technical field of pipeline connection and installation. The method comprises the steps that firstly, a groove is excavated and constructed to the designed elevation position, each layer of cement soil is backfilled in a layered mode according to 200 mm, the cement soil is compacted to reach the 95% compaction degree requirement, and backfilling is conducted till the bottom elevation of a sand cushion layer is reached; 2, a sand cushion layer with the thickness of 200 mm is constructed, the sand cushion layer is compacted to reach the compaction degree requirement of 95%, a polyethylene pipeline is installed according to the drawing requirement, and pipeline butt joint port construction is completed; thirdly, two circles of water-swelling water stop strips with the section width being 30 * 30 mm are wound on each pipeline, then steel reinforcement cages are installed, the steel reinforcement cages are composed of three-level steel with the diameter being 8 mm, the single-layer two-way interval is 200 mm, and the thickness of a protective layer is 20 mm; and fourthly, a formwork is installed, pouring construction of anti-seepage concrete with the strength being C30 is completed finally, and after the concrete strength reaches 75%, follow-up cement soil backfilling construction can be completed. The method solves the problem that when a large polyethylene pipeline is installed in a deep foundation trench of a soft geological layer, the qualified rate of a pipeline joint is low.
本发明公开了一种大型聚乙烯管道连接施工方法，属于管道连接安装技术领域。步骤一：将沟槽开挖施工至设计标高位置，按200mm每层分层回填水泥土并夯实达到95％压实度要求，一直回填到砂垫层底标高下为止；步骤二：施工200mm厚砂垫层同样夯实达到95％压实度要求，按图纸要求安装聚乙烯管道，完成管道对接口施工；步骤三：在每根管道上缠绕两圈截面宽30*30mm遇水膨胀止水条，然后安装钢筋笼，钢筋笼组成为直径8mm三级钢，单层双向间距200mm，保护层厚度20mm；步骤四：安装模板，最后完成强度为C30抗渗混凝土浇筑施工，待混凝土强度达到75％时可完后续水泥土回填施工。本发明解决了针对在软弱地质层深基槽内，安装大型聚乙烯管道时，管道接头出现的合格率较低。
Large polyethylene pipeline connection construction method
The invention discloses a large polyethylene pipeline connection construction method, and belongs to the technical field of pipeline connection and installation. The method comprises the steps that firstly, a groove is excavated and constructed to the designed elevation position, each layer of cement soil is backfilled in a layered mode according to 200 mm, the cement soil is compacted to reach the 95% compaction degree requirement, and backfilling is conducted till the bottom elevation of a sand cushion layer is reached; 2, a sand cushion layer with the thickness of 200 mm is constructed, the sand cushion layer is compacted to reach the compaction degree requirement of 95%, a polyethylene pipeline is installed according to the drawing requirement, and pipeline butt joint port construction is completed; thirdly, two circles of water-swelling water stop strips with the section width being 30 * 30 mm are wound on each pipeline, then steel reinforcement cages are installed, the steel reinforcement cages are composed of three-level steel with the diameter being 8 mm, the single-layer two-way interval is 200 mm, and the thickness of a protective layer is 20 mm; and fourthly, a formwork is installed, pouring construction of anti-seepage concrete with the strength being C30 is completed finally, and after the concrete strength reaches 75%, follow-up cement soil backfilling construction can be completed. The method solves the problem that when a large polyethylene pipeline is installed in a deep foundation trench of a soft geological layer, the qualified rate of a pipeline joint is low.
本发明公开了一种大型聚乙烯管道连接施工方法，属于管道连接安装技术领域。步骤一：将沟槽开挖施工至设计标高位置，按200mm每层分层回填水泥土并夯实达到95％压实度要求，一直回填到砂垫层底标高下为止；步骤二：施工200mm厚砂垫层同样夯实达到95％压实度要求，按图纸要求安装聚乙烯管道，完成管道对接口施工；步骤三：在每根管道上缠绕两圈截面宽30*30mm遇水膨胀止水条，然后安装钢筋笼，钢筋笼组成为直径8mm三级钢，单层双向间距200mm，保护层厚度20mm；步骤四：安装模板，最后完成强度为C30抗渗混凝土浇筑施工，待混凝土强度达到75％时可完后续水泥土回填施工。本发明解决了针对在软弱地质层深基槽内，安装大型聚乙烯管道时，管道接头出现的合格率较低。
Large polyethylene pipeline connection construction method
一种大型聚乙烯管道连接施工方法
TAO YANG (Autor:in) / LIU BAOTANG (Autor:in) / LI XI (Autor:in)
05.09.2023
Patent
Elektronische Ressource
Chinesisch
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