A cast-in-place pile hole dredging device based on residential building construction

The adjustable probe and regulating rod dredging device solves the problem that traditional dredging methods are difficult to adapt to changes in borehole diameter and mud-water flow rate, achieving protection of the inner wall of the cast-in-place pile hole and efficient dredging, thus improving dredging quality and safety.

CN117090205BActive Publication Date: 2026-01-20CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Application Number
CN202310311638.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-28
Publication Date
2026-01-20
Estimated Expiration
2043-03-28

AI Technical Summary

Technical Problem

Traditional dredging methods are difficult to adapt to changes in the diameter of cast-in-place pile holes and difficult to control the flow rate of mud and water, which increases the probability of soil collapse on the inner wall of the cast-in-place pile hole and the time required for silt removal.

Method used

The dredging device, which uses adjustable probes and adjustment rods, intermittently extracts and discharges mud and water in stages. Combined with airflow suction and flexible extension of filter cloth, it cleans the silt layer by layer. The device uses squeezing rods and slices to break down soil clods, thereby achieving the staged discharge of mud and water and the layer-by-layer reduction of silt.

Benefits of technology

This reduced the flow amplitude and flow rate of the mud water, preventing cracking of the inner wall of the cast-in-place pile hole, improving dredging efficiency and safety, and ensuring the integrity of the inner wall of the cast-in-place pile hole and the quality of dredging.

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Abstract

The present application relates to the field of building construction, specifically a kind of bored pile hole dredging device based on residential building construction, including hanger, dredging pipe and dredging head;The present application solves the problem that the bottom layer of bored pile hole is often soaked by mud water for a long time, the inner wall soil layer is relatively loose, the traditional dredging operation mode is difficult to reduce the overall flow amplitude and flow rate of mud water in pile hole during dredging process, increases the probability of cracking and collapse of bored pile hole inner wall soil layer caused by continuous flow of mud water during mud discharge process;Solve the problem that the traditional dredging device is difficult to adapt to the change of hole diameter of different pile holes, it is difficult to reduce and reduce the silt in bored pile hole layer by layer, increase the operation load of dredging device during dredging operation and the length of silt discharge.
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Citation Information

Patent Citations

  • Cleaning device for riverway desilting construction

    CN112459160A

  • Cast-in-place pile hole dredging device for civil engineering construction

    CN113356211A