A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underwater pile foundation pile casing anchoring method
The invention discloses an underwater pile foundation pile casing anchoring method which comprises the following steps: step 1, after a buoyancy tank platform is in place, performing impact hole forming on bare rock at a pile position through a percussion drill arranged on the platform, firstly leveling an uneven rock surface, and then performing rock drilling and hole forming; 2, after the hole forming depth reaches the designed hole depth, lengthening is conducted through a portal crane on the platform, a pile casing is lowered, and the hole entering depth of the pile casing is controlled to be 3 m; 3, sediment in the holes is cleaned through gas lift reverse circulation; 4, a pouring guide pipe is installed in the pile casing, anchoring concrete pouring is conducted through the same technology as pile foundation pouring, and the pile casing is lifted and lowered repeatedly in the pouring process so that concrete in the hole can flow out of the hole; and 5, after concrete inside and outside the rock hole is controlled to be flush with the outer side rock surface, the concrete strength is waited, and construction of the anchoring pile foundation pile casing is completed.
本发明公开了一种水下桩基护筒锚固方法，该水下桩基护筒锚固方法包括以下步骤：步骤1：浮箱平台就位后，通过安置在平台上的冲击钻机对桩位处裸岩进行冲击成孔，先将凹凸不平岩面进行找平，再进行凿岩成孔；步骤2：成孔深度达到设计孔深后，通过平台上的门式起重机接长并下放护筒，控制护筒入孔深度为3m；步骤3：采用气举反循环清理孔内沉渣；步骤4：在护筒内安装灌注导管，采用与桩基灌注相同工艺进行锚固混凝土灌注，灌注过程将护筒反复提升下放使孔内的混凝土流出孔外；步骤5：控制岩孔内外混凝土与外侧岩面齐平后，等待混凝土强度，完成锚固桩基护筒的施工。
Underwater pile foundation pile casing anchoring method
The invention discloses an underwater pile foundation pile casing anchoring method which comprises the following steps: step 1, after a buoyancy tank platform is in place, performing impact hole forming on bare rock at a pile position through a percussion drill arranged on the platform, firstly leveling an uneven rock surface, and then performing rock drilling and hole forming; 2, after the hole forming depth reaches the designed hole depth, lengthening is conducted through a portal crane on the platform, a pile casing is lowered, and the hole entering depth of the pile casing is controlled to be 3 m; 3, sediment in the holes is cleaned through gas lift reverse circulation; 4, a pouring guide pipe is installed in the pile casing, anchoring concrete pouring is conducted through the same technology as pile foundation pouring, and the pile casing is lifted and lowered repeatedly in the pouring process so that concrete in the hole can flow out of the hole; and 5, after concrete inside and outside the rock hole is controlled to be flush with the outer side rock surface, the concrete strength is waited, and construction of the anchoring pile foundation pile casing is completed.
本发明公开了一种水下桩基护筒锚固方法，该水下桩基护筒锚固方法包括以下步骤：步骤1：浮箱平台就位后，通过安置在平台上的冲击钻机对桩位处裸岩进行冲击成孔，先将凹凸不平岩面进行找平，再进行凿岩成孔；步骤2：成孔深度达到设计孔深后，通过平台上的门式起重机接长并下放护筒，控制护筒入孔深度为3m；步骤3：采用气举反循环清理孔内沉渣；步骤4：在护筒内安装灌注导管，采用与桩基灌注相同工艺进行锚固混凝土灌注，灌注过程将护筒反复提升下放使孔内的混凝土流出孔外；步骤5：控制岩孔内外混凝土与外侧岩面齐平后，等待混凝土强度，完成锚固桩基护筒的施工。
Underwater pile foundation pile casing anchoring method
一种水下桩基护筒锚固方法
LU TAO (author) / LIU SHUIZHOU (author) / GAO WENTAO (author) / YANG CHAO (author) / SHI ZHIKAI (author) / LIU XINLAI (author) / HUANG HUANZHONG (author)
2023-04-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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