A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bottom sealing structure suitable for soft plastic sludge riverbed and construction method of bottom sealing structure
The invention provides a bottom sealing structure suitable for a soft plastic muddy riverbed and a construction method of the bottom sealing structure. The construction method comprises the following steps that firstly, an original riverbed is subjected to elevation finishing, and steel pipe piles are subjected to underwater treatment; secondly, a geotextile geogrid layer is laid on the cleaned base; thirdly, prefabricated slabs are laid on the geotextile geogrid layer; fourthly, a construction platform is erected; and fifthly, concrete is poured through a double-guide-pipe moving first seal propelling method. By laying the geotextile geogrid layer on the base, an isolation layer can be formed on the base, and the precast slabs not only ensure that the geotextile is attached to the riverbed and the large surface of the base is flat, but also effectively solve the problem of insufficient bearing capacity of the soft plastic muddy riverbed, reduce the influence of concrete impact on the riverbed and ensure the construction quality of bottom sealing concrete. By adopting the double-guide-pipe moving head seal propelling method, the construction efficiency can be greatly improved while the construction quality is met.
本发明提出了一种适用于软塑淤泥质河床的封底结构及其施工方法，其中施工方法包括以下步骤：步骤一、原始河床标高整理以及钢管桩水下处理；步骤二、在清理后的基底上铺设土工布土工格栅层；步骤三、在土工布土工格栅层上铺设预制板；步骤四、搭设施工平台；步骤五、采用双导管移动首封推进法浇筑混凝土。通过在基底上铺设土工布土工格栅层，可在基底上形成一道隔离层，预制板不仅确保土工布与河床贴合，保证基底大面平整，还能有效解决软塑淤泥质河床承载力不足的问题，降低混凝凝土冲击对河床的影响，确保封底混凝土的施工质量，采用双导管移动首封推进法在满足施工质量的同时可大大提高施工效率。
Bottom sealing structure suitable for soft plastic sludge riverbed and construction method of bottom sealing structure
The invention provides a bottom sealing structure suitable for a soft plastic muddy riverbed and a construction method of the bottom sealing structure. The construction method comprises the following steps that firstly, an original riverbed is subjected to elevation finishing, and steel pipe piles are subjected to underwater treatment; secondly, a geotextile geogrid layer is laid on the cleaned base; thirdly, prefabricated slabs are laid on the geotextile geogrid layer; fourthly, a construction platform is erected; and fifthly, concrete is poured through a double-guide-pipe moving first seal propelling method. By laying the geotextile geogrid layer on the base, an isolation layer can be formed on the base, and the precast slabs not only ensure that the geotextile is attached to the riverbed and the large surface of the base is flat, but also effectively solve the problem of insufficient bearing capacity of the soft plastic muddy riverbed, reduce the influence of concrete impact on the riverbed and ensure the construction quality of bottom sealing concrete. By adopting the double-guide-pipe moving head seal propelling method, the construction efficiency can be greatly improved while the construction quality is met.
本发明提出了一种适用于软塑淤泥质河床的封底结构及其施工方法，其中施工方法包括以下步骤：步骤一、原始河床标高整理以及钢管桩水下处理；步骤二、在清理后的基底上铺设土工布土工格栅层；步骤三、在土工布土工格栅层上铺设预制板；步骤四、搭设施工平台；步骤五、采用双导管移动首封推进法浇筑混凝土。通过在基底上铺设土工布土工格栅层，可在基底上形成一道隔离层，预制板不仅确保土工布与河床贴合，保证基底大面平整，还能有效解决软塑淤泥质河床承载力不足的问题，降低混凝凝土冲击对河床的影响，确保封底混凝土的施工质量，采用双导管移动首封推进法在满足施工质量的同时可大大提高施工效率。
Bottom sealing structure suitable for soft plastic sludge riverbed and construction method of bottom sealing structure
一种适用于软塑淤泥质河床的封底结构及其施工方法
LIU DEXIN (author) / ZHUANG ZHIZHENG (author) / WEI ZHIHAO (author) / WANG WENQING (author) / FANG BO (author) / RAO JIE (author) / LI SIGONG (author) / NING ZHENGBO (author)
2022-03-22
Patent
Electronic Resource
Chinese
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