Impact drilling construction device and method for square pile foundation in high underground water level area
By using a combination of drilling and testing mechanisms in areas with high groundwater levels, the problems of hole collapse and sand inrush during the construction of square pile foundations were solved, achieving stable and efficient impact drilling and reducing construction difficulty.
CN122190615APending Publication Date: 2026-06-12ZHEJIANG ROAD & BRIDGE CONSTR +1
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Patent Information
- Application Number
- CN202610427743.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-02
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
In areas with high groundwater levels, existing rotary drilling methods for constructing square pile foundations are prone to borehole collapse and sand inrush, increasing the difficulty of construction.
Method used
The system employs a combination of drilling mechanism, hoisting mechanism, and detection mechanism. The drilling mechanism is driven by a rope for impact drilling, and pressure detection devices monitor the tensile deformation of the rope in real time. A correction component prevents deflection and ensures the stability of the borehole wall.
Benefits of technology
It reduces borehole wall disturbance, improves construction stability and accuracy, reduces the risk of borehole collapse and sand inrush, and lowers construction difficulty.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a high underground water level area square pile foundation impact drilling construction device and method, and relates to the technical field of pile foundation construction.The drilling construction device comprises a drilling mechanism and a winch lifting mechanism, the winch lifting mechanism is used for driving the drilling mechanism through ropes to conduct impact drilling on a pile foundation pit, and the ropes are arranged in pairs; the detection mechanism is arranged above the drilling mechanism and comprises an upper baffle, a lower baffle, an accompanying piece and a pressure detection piece, constraint grooves are formed in the upper baffle and the lower baffle respectively, the ropes arranged in pairs penetrate through the upper baffle and the lower baffle through the corresponding constraint grooves, the accompanying piece is clamped on the ropes and arranged between the upper baffle and the lower baffle, and the pressure detection piece is arranged on the pressure detection piece. A pressure detection part is arranged above the accompanying part, when the drilling mechanism is lowered by the rope, the accompanying part abuts against the lower baffle, and when the drilling mechanism is taken up by the rope, the accompanying part moves upwards to the pressure detection part to abut against the upper baffle; according to the drilling construction device, the deformation of the rope can be found in time.
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