A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Precast tubular pile core foam polyurethane rapid bottom sealing construction method
The invention relates to a precast tubular pile core foam polyurethane rapid bottom sealing construction method. Compared with a traditional concrete bottom sealing mode, a mode of plugging the end ofa tubular pile by using a polyurethane expansion material, solves problems that the quantity of prepared concrete materials on the site is less, the concrete waiting time may exceed a concrete initial setting time, separation is caused due to overhigh free falling height in the concrete pouring process, the concrete cannot be vibrated and compacted by using a vibrating rod, the pile pressing efficiency is reduced due to stopping in the midway of the pile pressing process to block a pile core, the labor intensity of personnel is high and so on. Through new application of a polyurethane foam material, pile core bottom sealing is carried out by using a new process, the operation is lightweight, and the polyurethane foam material can be used as much as you need. Through the application of mode, the pile core bottom sealing process is improved, the bottom sealing waiting time in the pile pressing process can be shortened, the pile pressing construction efficiency can be enhanced, the construction cost can be reduced by using the polyurethane foam material to seal the bottom instead of the concrete, the situation that the concrete is used after the initial setting time passes, is separated and is not compactly vibrated is avoided.
本申请涉及一种预制管桩桩芯发泡聚氨酯快速封底施工方法，本申请采用聚氨酯膨胀材料对管桩的桩端进行封堵的方式对比传统混凝土封底方式,解决了如现场混凝土材料备料数量过少、混凝土等待使用时间可能超过混凝土初凝时间、混凝土浇筑过程中自由下落高度过高造成离析、无法用振棒振捣密实、压桩过程中途停顿进行桩芯封堵阻碍压桩效率、人员劳动力强度高等问题。通过聚氨酯发泡材料的新应用，新工艺进行桩芯封底，轻量化操作，需要多少才用多少。该方式的应用，提高了桩芯封底的工艺，可以缩短压桩过程中封底的等候时间，提高压桩施工效率，使用聚氨酯发泡材料比混凝土封底可降低施工成本，避免混凝土超过初凝时间使用、离析、振捣不密实情况。
Precast tubular pile core foam polyurethane rapid bottom sealing construction method
The invention relates to a precast tubular pile core foam polyurethane rapid bottom sealing construction method. Compared with a traditional concrete bottom sealing mode, a mode of plugging the end ofa tubular pile by using a polyurethane expansion material, solves problems that the quantity of prepared concrete materials on the site is less, the concrete waiting time may exceed a concrete initial setting time, separation is caused due to overhigh free falling height in the concrete pouring process, the concrete cannot be vibrated and compacted by using a vibrating rod, the pile pressing efficiency is reduced due to stopping in the midway of the pile pressing process to block a pile core, the labor intensity of personnel is high and so on. Through new application of a polyurethane foam material, pile core bottom sealing is carried out by using a new process, the operation is lightweight, and the polyurethane foam material can be used as much as you need. Through the application of mode, the pile core bottom sealing process is improved, the bottom sealing waiting time in the pile pressing process can be shortened, the pile pressing construction efficiency can be enhanced, the construction cost can be reduced by using the polyurethane foam material to seal the bottom instead of the concrete, the situation that the concrete is used after the initial setting time passes, is separated and is not compactly vibrated is avoided.
本申请涉及一种预制管桩桩芯发泡聚氨酯快速封底施工方法，本申请采用聚氨酯膨胀材料对管桩的桩端进行封堵的方式对比传统混凝土封底方式,解决了如现场混凝土材料备料数量过少、混凝土等待使用时间可能超过混凝土初凝时间、混凝土浇筑过程中自由下落高度过高造成离析、无法用振棒振捣密实、压桩过程中途停顿进行桩芯封堵阻碍压桩效率、人员劳动力强度高等问题。通过聚氨酯发泡材料的新应用，新工艺进行桩芯封底，轻量化操作，需要多少才用多少。该方式的应用，提高了桩芯封底的工艺，可以缩短压桩过程中封底的等候时间，提高压桩施工效率，使用聚氨酯发泡材料比混凝土封底可降低施工成本，避免混凝土超过初凝时间使用、离析、振捣不密实情况。
Precast tubular pile core foam polyurethane rapid bottom sealing construction method
一种预制管桩桩芯发泡聚氨酯快速封底施工方法
LIU ZHE (author) / DING GUANGCHENG (author) / WU JINGZHAO (author) / HUANG JIANGYU (author) / HUANG ZHIPENG (author) / CHEN WEIPENG (author)
2020-10-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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