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Reinforcing method for concrete-filled steel tube pile in extremely-soft and extremely-hard stratum
The invention discloses a concrete-filled steel tube pile structure for an upper-soft lower-hard stratum and a reinforcing method. The concrete-filled steel tube pile structure mainly comprises a drill hole, a preformed hole, a concrete-filled steel tube pile and a reinforcement cage, the preformed holes are all located in the drill hole; the concrete-filled steel tube pile sinks into the drill hole, and the bottom of the concrete-filled steel tube pile extends below the soft and hard soil interface; the reinforcement cage is placed in the preformed hole, and the top of the reinforcement cage is higher than the soft and hard soil interface; concrete is poured into the steel pipe concrete piles. The reinforcing method mainly comprises the steps that a hole used for pile sinking is vertically and downwards drilled, and a drilled hole is formed; a reserved hole is drilled in the drill hole along the axis of the drill hole; sinking a steel pipe concrete pile into the drilled hole, and putting a reinforcement cage into the preformed hole; and concrete grout is injected into the steel pipe concrete piles and the preformed holes. The device has the advantages of being simple in structure, convenient to operate and easy to implement.
本发明公开了一种用于上软下硬地层中的钢管混凝土桩结构及加固方法，主要包括钻孔、预留孔、钢管混凝土桩和钢筋笼；预留孔均位于钻孔内；钢管混凝土桩沉入钻孔内，其底部延伸至软硬土交界面之下；钢筋笼放入预留孔内，钢筋笼的顶部高于软硬土交界面；钢管混凝土桩内浇筑混凝土。加固方法主要包括：竖直向下钻挖用于沉桩的孔，形成钻孔；沿着钻孔轴线在钻孔内钻挖预留孔；在钻孔中沉入钢管混凝土桩，在预留孔中放入钢筋笼；向钢管混凝土桩和预留孔内注入混凝土浆液。本发明还具有结构简单、操作方便、容易实施的优点。
Reinforcing method for concrete-filled steel tube pile in extremely-soft and extremely-hard stratum
The invention discloses a concrete-filled steel tube pile structure for an upper-soft lower-hard stratum and a reinforcing method. The concrete-filled steel tube pile structure mainly comprises a drill hole, a preformed hole, a concrete-filled steel tube pile and a reinforcement cage, the preformed holes are all located in the drill hole; the concrete-filled steel tube pile sinks into the drill hole, and the bottom of the concrete-filled steel tube pile extends below the soft and hard soil interface; the reinforcement cage is placed in the preformed hole, and the top of the reinforcement cage is higher than the soft and hard soil interface; concrete is poured into the steel pipe concrete piles. The reinforcing method mainly comprises the steps that a hole used for pile sinking is vertically and downwards drilled, and a drilled hole is formed; a reserved hole is drilled in the drill hole along the axis of the drill hole; sinking a steel pipe concrete pile into the drilled hole, and putting a reinforcement cage into the preformed hole; and concrete grout is injected into the steel pipe concrete piles and the preformed holes. The device has the advantages of being simple in structure, convenient to operate and easy to implement.
本发明公开了一种用于上软下硬地层中的钢管混凝土桩结构及加固方法，主要包括钻孔、预留孔、钢管混凝土桩和钢筋笼；预留孔均位于钻孔内；钢管混凝土桩沉入钻孔内，其底部延伸至软硬土交界面之下；钢筋笼放入预留孔内，钢筋笼的顶部高于软硬土交界面；钢管混凝土桩内浇筑混凝土。加固方法主要包括：竖直向下钻挖用于沉桩的孔，形成钻孔；沿着钻孔轴线在钻孔内钻挖预留孔；在钻孔中沉入钢管混凝土桩，在预留孔中放入钢筋笼；向钢管混凝土桩和预留孔内注入混凝土浆液。本发明还具有结构简单、操作方便、容易实施的优点。
Reinforcing method for concrete-filled steel tube pile in extremely-soft and extremely-hard stratum
一种用于极软极硬地层钢管混凝土桩加固方法
GAO HAIQIN (author) / HOU ZHENKUN (author) / ZHANG BOHAO (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Shield Tunneling Technology in Hard-Soft Uneven Stratum and Extremely-Soft Stratum
| UB Braunschweig | 2021
Shield Treatment Technology in Extremely Soft Stratum
| Springer Verlag | 2021
Soft stratum reinforcing method based on pile foundation
| European Patent Office | 2024
Tubular pile structure used in upper-soft lower-hard stratum and reinforcing method
| European Patent Office | 2022