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A platform for research: civil engineering, architecture and urbanism
Anti-scour protection construction method for large-diameter single pile foundation
The invention discloses an anti-scour protection construction method for a large-diameter single-pile foundation, which relates to the technical field of single-pile foundation construction and comprises the following steps: step 1, constructing by adopting a sand quilt, a sand bag and a concrete interlocking row; secondly, sand quilt filling construction technology control is conducted, trial filling is conducted firstly, formal filling construction is conducted after appropriate mortar concentration, screen mortar pressure, consolidation time, consolidation speed and other empirical data are mastered, and the mortar concentration is appropriately controlled to range from 20% to 45%; and thirdly, after the sand quilt is laid, sand bag gap filling operation is carried out on the periphery of the pile foundation, throwing and filling of the sand bags are carried out by hanging a net bag to the position around the pile, and a diver carries out underwater building and filling on a gap between the pile foundation and the sand quilt through the sand bags. According to the method, the solidification and filling degree of the mortar during construction are strictly calculated, multiple times of filling are conducted, the filling plumpness and thickness of the sand quilt are controlled, the plumpness of the sand quilt is ensured, and then the anti-scouring capacity of the single-pile foundation is improved.
本发明公开了一种大直径单桩基础防冲刷保护施工工法，涉及单桩基础施工技术领域，包括以下步骤：步骤一、采用砂被，砂袋和混凝土联锁排施工；步骤二、砂被灌充施工技术控制，先进行试充，在掌握了适宜的砂浆浓度，屏浆压力、固结时间、固结速度等经验数据后，再进行正式的灌充施工，砂浆浓度宜控制在20％～45%；步骤三、砂被铺设完成后，进行桩基周边砂袋填空作业，砂袋的抛填采用网兜吊放至桩周位置，由潜水员进行水下将桩基与砂被之间的缝隙用砂袋垒筑填平。本发明通过严格计算施工时砂浆的固结及充盈度，进行多次充填，而且控制砂被的充填饱满度和厚度，确保砂被的饱满度，进而提高单桩基础的抗冲刷能力。
Anti-scour protection construction method for large-diameter single pile foundation
The invention discloses an anti-scour protection construction method for a large-diameter single-pile foundation, which relates to the technical field of single-pile foundation construction and comprises the following steps: step 1, constructing by adopting a sand quilt, a sand bag and a concrete interlocking row; secondly, sand quilt filling construction technology control is conducted, trial filling is conducted firstly, formal filling construction is conducted after appropriate mortar concentration, screen mortar pressure, consolidation time, consolidation speed and other empirical data are mastered, and the mortar concentration is appropriately controlled to range from 20% to 45%; and thirdly, after the sand quilt is laid, sand bag gap filling operation is carried out on the periphery of the pile foundation, throwing and filling of the sand bags are carried out by hanging a net bag to the position around the pile, and a diver carries out underwater building and filling on a gap between the pile foundation and the sand quilt through the sand bags. According to the method, the solidification and filling degree of the mortar during construction are strictly calculated, multiple times of filling are conducted, the filling plumpness and thickness of the sand quilt are controlled, the plumpness of the sand quilt is ensured, and then the anti-scouring capacity of the single-pile foundation is improved.
本发明公开了一种大直径单桩基础防冲刷保护施工工法，涉及单桩基础施工技术领域，包括以下步骤：步骤一、采用砂被，砂袋和混凝土联锁排施工；步骤二、砂被灌充施工技术控制，先进行试充，在掌握了适宜的砂浆浓度，屏浆压力、固结时间、固结速度等经验数据后，再进行正式的灌充施工，砂浆浓度宜控制在20％～45%；步骤三、砂被铺设完成后，进行桩基周边砂袋填空作业，砂袋的抛填采用网兜吊放至桩周位置，由潜水员进行水下将桩基与砂被之间的缝隙用砂袋垒筑填平。本发明通过严格计算施工时砂浆的固结及充盈度，进行多次充填，而且控制砂被的充填饱满度和厚度，确保砂被的饱满度，进而提高单桩基础的抗冲刷能力。
Anti-scour protection construction method for large-diameter single pile foundation
一种大直径单桩基础防冲刷保护施工工法
MENG CHENGJUN (author) / MENG XUN (author) / WU SHANG (author) / MIAO PENG (author)
2022-08-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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