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Construction method of underwater non-dispersible concrete long spiral expanded-base cast-in-place pile
The invention discloses a construction method of an underwater non-dispersible concrete long spiral bottom-expanded cast-in-place pile, and belongs to the field of concrete pile foundation construction.The construction method comprises the following steps that S1, a pile position is measured and arranged, and a reinforcement cage and a pile casing are prepared; s2, a construction platform is erected, and the pile casing is driven into a riverbed or a seabed; s3, drilling holes; s4, expanding the bottom; s5, the reinforcement cage is pressed into the pile casing, and underwater non-dispersible concrete is pumped; and S6, after the pile is formed, maintenance is conducted, the pile casing is pulled out, and quality inspection is conducted on the cast-in-place pile. The construction method is simple, concrete can be prevented from being dispersed when encountering water, the construction quality of the underwater cast-in-place concrete pile is guaranteed, the pile foundation bearing capacity is enhanced, the pile body length is shortened, the engineering cost is reduced, and good environment friendliness is achieved.
本发明公开了一种水下不分散混凝土长螺旋扩底灌注桩施工方法，属于混凝土桩基施工领域，该施工方法包括如下步骤：S1：测设桩位，准备钢筋笼和护筒；S2：架设施工平台，将护筒打入至河床或海床；S3钻孔；S4：扩底；S5：将钢筋笼压入护筒，泵送水下不分散混凝土；S6：成桩后进行养护，抽出护筒，并对灌注桩进行质量检验。本发明施工方法简单，能防止混凝土遇水分散，保证水下混凝土灌注桩的施工质量，增强桩基承载力，缩短桩身长度降低工程造价，并且具有良好的环境友好性。
Construction method of underwater non-dispersible concrete long spiral expanded-base cast-in-place pile
The invention discloses a construction method of an underwater non-dispersible concrete long spiral bottom-expanded cast-in-place pile, and belongs to the field of concrete pile foundation construction.The construction method comprises the following steps that S1, a pile position is measured and arranged, and a reinforcement cage and a pile casing are prepared; s2, a construction platform is erected, and the pile casing is driven into a riverbed or a seabed; s3, drilling holes; s4, expanding the bottom; s5, the reinforcement cage is pressed into the pile casing, and underwater non-dispersible concrete is pumped; and S6, after the pile is formed, maintenance is conducted, the pile casing is pulled out, and quality inspection is conducted on the cast-in-place pile. The construction method is simple, concrete can be prevented from being dispersed when encountering water, the construction quality of the underwater cast-in-place concrete pile is guaranteed, the pile foundation bearing capacity is enhanced, the pile body length is shortened, the engineering cost is reduced, and good environment friendliness is achieved.
本发明公开了一种水下不分散混凝土长螺旋扩底灌注桩施工方法，属于混凝土桩基施工领域，该施工方法包括如下步骤：S1：测设桩位，准备钢筋笼和护筒；S2：架设施工平台，将护筒打入至河床或海床；S3钻孔；S4：扩底；S5：将钢筋笼压入护筒，泵送水下不分散混凝土；S6：成桩后进行养护，抽出护筒，并对灌注桩进行质量检验。本发明施工方法简单，能防止混凝土遇水分散，保证水下混凝土灌注桩的施工质量，增强桩基承载力，缩短桩身长度降低工程造价，并且具有良好的环境友好性。
Construction method of underwater non-dispersible concrete long spiral expanded-base cast-in-place pile
一种水下不分散混凝土长螺旋扩底灌注桩施工方法
NIE JILI (author) / NIE KAI (author) / ZHENG JIANPING (author) / WU PENGPENG (author) / LI ZHICHAO (author) / ZHOU SHUANGXI (author) / XU HAO (author)
2023-12-08
Patent
Electronic Resource
Chinese
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