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Construction method for breaking and removing virtual pile head without girdling
According to the construction method for removing the virtual pile head without girdling breaking, a high-pressure jet grouting machine is used for spraying a concrete retarder to the position of the pile head needing to be cleaned, the retarder reacts with the pile head concrete, the setting time of the pile head concrete is delayed, pile foundation concrete below the pile head concrete is not affected, and the pile head concrete is prevented from being damaged. After the lower pile foundation concrete is finally set, the pile head concrete is not finally set, so that the pile head concrete is convenient and efficient to clean and chiseled away, manual circular cutting of the pile head and stripping of pile foundation main reinforcements are not needed, the pile head concrete chiseling construction is small in manual demand, simple in procedure and high in working strength, meanwhile, dust and noise cannot be generated in the breaking process, and the construction cost is reduced. And the environment and noise cannot disturb residents. The problems that existing virtual pile head girdling breaking is tedious in construction and noise disturbs residents are solved.
本发明公开了一种免环切破除虚桩头的施工方法，利用高压旋喷机喷射混凝土缓凝剂至需要清理的桩头部位，缓凝剂与桩头混凝土反应，延缓桩头混凝土的凝结时间，而桩头混凝土以下的桩基混凝土则不受影响，待下部的桩基混凝土终凝后，而桩头混凝土还未终凝，进而使得桩头混凝土清理凿除方便、高效、且无需人工环切桩头，剥离桩基主筋，桩头混凝土凿除施工人工需求量小，工序简单，工作强度高，同时在破除过程不会产生粉尘及噪音，即不造成环境及噪音扰民。本发明解决了现有的虚桩头环切破除存在施工繁琐且噪音扰民的问题。
Construction method for breaking and removing virtual pile head without girdling
According to the construction method for removing the virtual pile head without girdling breaking, a high-pressure jet grouting machine is used for spraying a concrete retarder to the position of the pile head needing to be cleaned, the retarder reacts with the pile head concrete, the setting time of the pile head concrete is delayed, pile foundation concrete below the pile head concrete is not affected, and the pile head concrete is prevented from being damaged. After the lower pile foundation concrete is finally set, the pile head concrete is not finally set, so that the pile head concrete is convenient and efficient to clean and chiseled away, manual circular cutting of the pile head and stripping of pile foundation main reinforcements are not needed, the pile head concrete chiseling construction is small in manual demand, simple in procedure and high in working strength, meanwhile, dust and noise cannot be generated in the breaking process, and the construction cost is reduced. And the environment and noise cannot disturb residents. The problems that existing virtual pile head girdling breaking is tedious in construction and noise disturbs residents are solved.
本发明公开了一种免环切破除虚桩头的施工方法，利用高压旋喷机喷射混凝土缓凝剂至需要清理的桩头部位，缓凝剂与桩头混凝土反应，延缓桩头混凝土的凝结时间，而桩头混凝土以下的桩基混凝土则不受影响，待下部的桩基混凝土终凝后，而桩头混凝土还未终凝，进而使得桩头混凝土清理凿除方便、高效、且无需人工环切桩头，剥离桩基主筋，桩头混凝土凿除施工人工需求量小，工序简单，工作强度高，同时在破除过程不会产生粉尘及噪音，即不造成环境及噪音扰民。本发明解决了现有的虚桩头环切破除存在施工繁琐且噪音扰民的问题。
Construction method for breaking and removing virtual pile head without girdling
免环切破除虚桩头的施工方法
XI JIALONG (author) / YU HAO (author) / HOU LONG (author) / CHO MIN-WOOK (author) / CAI TIECHEN (author) / HE YINGLONG (author)
2022-08-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Adjustable auxiliary operation platform for pile head girdling method construction
| European Patent Office | 2022
| European Patent Office | 2022