Pile foundation slag salvaging detection device

By designing a pile foundation slag removal detection device, a combination of extraction and slag removal components is used to directly remove slag samples and measure the thickness of the silt layer. This solves the problems of high detection cost and long time consumption in existing technologies, and realizes low-cost and rapid silt layer thickness detection.

CN223838038UActive Publication Date: 2026-01-27ROAD & BRIDGE EAST CHINA ENG +1
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Patent Information

Application Number
CN202423064306.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-01-27
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing technologies for detecting the integrity of pile foundations, especially the thickness of the silt layer, have problems such as affecting the bearing capacity of the pile foundation, high cost, and long time consumption.

Method used

Design a pile foundation slag removal and detection device, including an extraction component, a slag removal component, and a detection component. By using the extraction component and the slag removal component in combination, slag samples inside the pile foundation can be directly removed. The detection component is used to monitor the distance between the slag removal component and the top of the pile foundation in real time, record the insertion position multiple times, and measure the thickness of the silt layer.

Benefits of technology

It enables simple, fast, and low-cost detection of the thickness of the silt layer at the top of the pile foundation without affecting the bearing capacity of the pile foundation, thus avoiding any impact on the bearing capacity of the pile foundation. The structure is simple and saves time and effort.

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Abstract

The utility model belongs to the technical field of building construction, and discloses a pile foundation slag salvaging detection device which comprises an extraction part, a slag salvaging part and a detection part. The extraction piece extends in the vertical direction. The slag salvaging part is arranged at the lower end of the extracting part, is detachably connected with the extracting part and is configured to be used for salvaging a slag sample in the pile foundation. The detection part is arranged on the side, away from the pile foundation, of the slag salvaging part and used for detecting the distance between the upper end of the slag salvaging part and the top end of the pile foundation. The pile foundation slag salvaging detection device can directly detect the thickness of a sludge layer at the top end of the pile foundation on the premise that the bearing capacity of the pile foundation is not affected, and is simple in structural form, time-saving, labor-saving and low in detection cost.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a pile foundation slag removal detection device. Background Technology

[0002] In building construction, when the bearing capacity of the superstructure soil is poor, pile foundations are usually chosen. The piles distribute the pressure of the superstructure load, and the piles and soil work together to bear the load, thereby improving the bearing capacity of the foundation. Factors such as the integrity of the pile foundation directly affect its bearing capacity; therefore, to ensure the quality of pile foundation engineering, it is necessary to monitor the integrity of the piles during construction.

[0003] After the pile foundation is poured to the design elevation, the integrity of the pile foundation can be determined by checking for a silt layer at the pile head. If silt is present, the thickness of the silt layer needs to be measured, and then concrete should be poured again within that thickness range to ensure the integrity of the pile foundation. In existing technology, core drilling can be used to test the integrity of the pile body, but this method requires extracting a core sample from the pile body, which is a semi-destructive testing method. This may affect the bearing capacity of the pile foundation, and it is also costly and time-consuming. Alternatively, ultrasonic testing can be used to monitor for defects inside the pile body, indirectly inferring the presence of a silt layer. Obviously, this method cannot detect the thickness of the silt layer. Utility Model Content

[0004] The purpose of this utility model is to provide a pile foundation slag removal detection device that can directly detect the thickness of the silt layer at the top of the pile foundation without affecting the bearing capacity of the pile foundation. It has a simple structure, saves time and effort, and has low detection cost.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pile foundation slag removal detection device is provided, comprising:

[0007] Extraction element, the extraction element extending vertically;

[0008] A slag-retrieving component is disposed at the lower end of the extraction component and is detachably connected to the extraction component. The slag-retrieving component is configured to retrieve slag samples from within the pile foundation.

[0009] A detection element is disposed on the side of the slag removal component facing away from the pile foundation. The detection element is used to detect the distance between the upper end of the slag removal component and the top of the pile foundation.

[0010] Optionally, the slag removal component includes a connecting part and a slag removal part. The connecting part is disposed inside the slag removal part and has a threaded hole. The lower end of the extraction component extends into the threaded hole and is threadedly connected to the threaded hole. The detection component is disposed at the upper end of the slag removal part. The slag removal part is used to remove slag samples from the pile foundation.

[0011] Optionally, the pile foundation slag removal detection device further includes a limiting component, the connecting part has a through hole one, the through hole one communicates with the threaded hole, the lower end of the extraction component has a through hole two, the through hole one and the through hole two face each other, and the limiting component passes through the through hole one and the through hole two.

[0012] Optionally, the cross-sectional area of ​​the slag removal section gradually decreases along the vertical direction, and the outer surface of the slag removal section is arc-shaped.

[0013] Optionally, the extraction component includes a handle and an extraction rod, the handle being disposed at the upper end of the extraction rod, the length of the extraction rod being adjustable, and the slag removal component being disposed at the lower end of the extraction rod.

[0014] Optionally, the length of the extraction rod is greater than the distance between the top of the pile and the ground.

[0015] Optionally, the extraction rod includes a first extraction rod segment and a second extraction rod segment. The lower end of the first extraction rod segment is hollow. One end of the second extraction rod segment extends into the first extraction rod segment and is threadedly connected to the inner wall of the first extraction rod segment. The other end of the second extraction rod segment is detachably connected to the slag removal component.

[0016] Optionally, the second extraction rod segment and the first extraction rod segment are connected by a helical thread fit.

[0017] Optionally, the extractor is provided with a scale.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a pile foundation slag removal detection device, including an extraction component, a slag removal component, and a detection component. When detecting the thickness of the silt layer at the top of the pile foundation in the borehole, the upper end of the extraction component can be controlled to extend the extraction component and the slag removal component into the borehole. During this process, the detection component can monitor the distance between the upper end of the slag removal component and the top of the pile foundation in real time. When the detection component detects that the upper end of the slag removal component has reached the top of the pile foundation, it stops the downward movement of the extraction component and the slag removal component and records the current position of the extraction component in the foundation pit. At this time, the entire slag removal component is extended into the pile foundation. Then, the extraction component and the slag removal component are moved vertically upward. During this process, the slag removal component can scoop up and carry the slag sample from the pile foundation until the slag removal component is removed from the borehole. Finally, the slag sample is tested to determine whether there is a silt layer at the top of the pile foundation. If a silt layer is present, the above operation can be repeated, allowing the extractor to be inserted into the pit to the first recorded position. After that, the extractor is inserted a certain length again, and the second insertion position is recorded. The slag sample is then retrieved again. When no more silt appears in the slag sample, this operation is stopped. The thickness of the silt layer can be determined by measuring the distance between the last recorded position of the extractor inserted into the pit and the first recorded position.

[0020] By setting up extraction and slag-removing components, slag samples can be retrieved from the pile foundation. Based on the slag samples, it can be directly determined whether the top of the pile foundation contains a silt layer, thus avoiding affecting the bearing capacity of the pile foundation. When a silt layer is present, multiple retrievals can be performed, and the insertion positions of the extraction components can be recorded. By combining the detection of multiple slag samples and measuring the insertion positions, the thickness of the silt layer at the top of the pile foundation can be directly determined. The structure is simple, time-saving, labor-saving, and has low detection costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the pile foundation slag removal detection device provided in this embodiment of the utility model.

[0022] In the picture:

[0023] 1. Extraction component; 11. Handle; 12. Extraction rod;

[0024] 2. Slag removal component; 21. Connecting part; 22. Slag removal part. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] This embodiment provides a pile foundation slag removal detection device, such as... Figure 1 As shown, the thickness of the silt layer at the top of the pile can be directly detected without affecting the bearing capacity of the pile foundation. The structure is simple, time-saving, labor-saving, and low in detection cost.

[0030] like Figure 1 As shown, the pile foundation slag removal detection device includes an extraction component 1, a slag removal component 2, and a detection component. The extraction component 1 extends vertically. The slag removal component 2 is located at the lower end of the extraction component 1 and is detachably connected to it. The slag removal component 2 is configured to remove slag samples from within the pile foundation. When detecting the thickness of the silt layer, both the extraction component 1 and the slag removal component 2 need to be inserted into the pile foundation. The detachable connection between the extraction component 1 and the slag removal component 2 allows for flexible selection of the extraction component 1's length based on the pile foundation's design elevation, and also allows for flexible selection of the slag removal component 2's size based on the pile foundation's diameter, thus providing versatility. The detection component is located on the side of the slag removal component 2 facing away from the pile foundation, and is used to detect the distance between the upper end of the slag removal component 2 and the top of the pile foundation.

[0031] When testing the thickness of the silt layer at the top of the pile foundation in the borehole, the upper end of the extraction component 1 and the slag-collecting component 2 can be extended into the borehole by controlling the upper end of the extraction component 1. During this process, the detection component can monitor the distance between the upper end of the slag-collecting component 2 and the top of the pile foundation in real time. When the detection component detects that the upper end of the slag-collecting component 2 has reached the top of the pile foundation, the downward movement of the extraction component 1 and the slag-collecting component 2 is stopped, and the current position of the extraction component 1 in the pit is recorded. At this time, the entire slag-collecting component 2 is extended into the pile foundation. Then, the extraction component 1 and the slag-collecting component 2 are moved out vertically upward. During this process, the slag-collecting component 2 can collect and carry the slag sample from the pile foundation until the slag-collecting component 2 is removed from the borehole. Finally, the slag sample is tested to determine whether there is a silt layer at the top of the pile foundation. If a silt layer is present, the above operation can be repeated, allowing the extractor 1 to be inserted into the pit to the first recorded position. After that, the extractor 1 is inserted a certain length again, and the second insertion position is recorded. The slag sample is then retrieved again. When no more silt appears in the slag sample, this operation is stopped. The thickness of the silt layer can be determined by measuring the distance between the last recorded position of the extractor 1 inserted into the pit and the first recorded position.

[0032] By setting up extraction component 1 and slag removal component 2, slag samples can be retrieved from the pile foundation. Based on the slag samples, it can be directly determined whether the top of the pile foundation contains a silt layer, thus avoiding affecting the bearing capacity of the pile foundation. When a silt layer is present, multiple retrievals can be performed, and the insertion positions of extraction component 1 can be recorded. By combining the detection of multiple slag samples and measuring the insertion positions, the thickness of the silt layer at the top of the pile foundation can be directly determined. The structure is simple, time-saving, labor-saving, and has low detection costs.

[0033] For example, the detection device includes a radar rangefinder.

[0034] Optionally, such as Figure 1 As shown, the slag removal component 2 includes a connecting part 21 and a slag removal part 22. The connecting part 21 is located inside the slag removal part 22 and has a threaded hole. The lower end of the extraction component 1 extends into the threaded hole and is threadedly connected to it. The detection component is located at the upper end of the slag removal part 22, which is used to remove slag samples from the pile foundation. When detecting the silt layer, the extraction component 1 and slag removal component 2 of corresponding sizes are selected according to the design elevation and diameter of the pile foundation. Then, the lower end of the extraction component 1 is extended into the threaded hole of the connecting part 21 and threadedly connected to it, thus completing the assembly of the pile foundation slag removal detection device. The device is then extended downward into the pile foundation until the slag removal part 22 is completely inserted into the pile foundation. The device is then removed upward, and the slag sample is simultaneously removed and carried by the slag removal part 22, facilitating the detection of the silt layer at the top of the pile foundation. The structure is simple and the operation is convenient.

[0035] The pile foundation slag removal detection device also includes a limiting component. The connecting part 21 has a through hole one, which extends radially along the connecting part 21 and communicates with a threaded hole. The lower end of the extraction component 1 has a through hole two, which extends radially along the extraction component 1. When the lower end of the extraction component 1 is inserted and threaded into the threaded hole, through holes one and two are aligned. Then, the limiting component is inserted into through holes one and two, thereby further strengthening the connection between the extraction component 1 and the slag removal part 22, preventing the slag removal part 22 from falling off during the slag removal process, and ensuring the normal operation of the slag removal work.

[0036] Optionally, the cross-sectional area of ​​the slag-removing section 22 gradually decreases vertically, and the outer surface of the slag-removing section 22 is arc-shaped. By setting the slag-removing section 22 as an arc-shaped section with a gradually decreasing cross-sectional area, the friction and resistance between the outer wall of the slag-removing section 22 and the inner wall of the borehole, and between the outer wall of the slag-removing section 22 and the inner wall of the pile foundation, can be reduced. This ensures that the slag-removing section 22 can smoothly pass through obstacles inside the pile foundation and extend into the pile foundation, and can evenly distribute the pressure during the slag-removing process, reducing the risk of localized stress.

[0037] like Figure 1 As shown, the extraction component 1 includes a handle 11 and an extraction rod 12. The handle 11 is located at the upper end of the extraction rod 12, and the length of the extraction rod 12 is adjustable. The slag-collecting component 2 is located at the lower end of the extraction rod 12. When detecting silt layers, workers can grasp the handle 11 to insert or remove the pile foundation slag-collecting detection device from the borehole. The handle 11 provides a gripping position, facilitating slag sample collection. Furthermore, the adjustable length of the extraction rod 12 allows for adjustment based on the different design elevations of the pile foundations in different projects, ensuring that the slag-collecting component 22 can fully extend into the pile foundation, providing flexibility and versatility.

[0038] Optionally, the length of the extraction rod 12 is greater than the distance between the top of the pile foundation and the ground, so as to facilitate marking the insertion position of the extraction rod 12 and ensure that the slag removal part 22 can be fully inserted into the pile foundation.

[0039] Optionally, the extraction rod 12 includes a first extraction rod segment and a second extraction rod segment. The lower end of the first extraction rod segment is hollow, and one end of the second extraction rod segment extends into the first extraction rod segment and is threadedly connected to the inner wall of the first extraction rod segment. The other end of the second extraction rod segment is detachably connected to the slag removal part 2. When inspecting the silt layer, depending on the design elevation of different pile foundations, the extraction rod 12 can be shortened or lengthened by screwing part of the second extraction rod segment into the first extraction rod segment or screwing part of the second extraction rod segment out of the first extraction rod segment. This ensures that when the extraction rod 12 is inserted into the borehole, it can drive the slag removal part 22 into the pile foundation. The structure is simple and the operation is convenient.

[0040] In this embodiment, the second extraction rod segment and the first extraction rod segment are connected by a helical thread. By setting both the threads of the first extraction rod segment and the threads of the second extraction rod segment as helical threads, the contact area between the threads can be increased through the inclined surface of the helical threads, thereby increasing the friction and enhancing the connection strength between the second extraction rod segment and the first extraction rod segment. This ensures the overall stability of the extraction rod 12, prevents the extraction rod 12 from breaking during the slag removal process, and ensures the normal operation of the slag removal work.

[0041] Optionally, the extraction component 1 is equipped with a scale. When detecting a silt layer, the depth to which the pile foundation slag removal detection device is inserted into the borehole can be determined by observing the exposed scale value on the extraction component 1. When detecting the thickness of the silt layer, the slag removal component 2 is first fully inserted into the pile foundation, and the current scale value of the extraction component 1 is recorded as the first depth. Then, the pile foundation slag removal detection device is removed from the borehole. By checking whether the slag sample retrieved by the slag removal component 2 contains silt, it can be determined whether there is a silt layer at the top of the pile foundation. If so, the insertion depth is increased uniformly, and the above operation is repeated, recording the scale value of the extraction component 1 each time slag is removed, i.e., recording the depth of multiple slag removals, until the slag sample is concrete mortar. By calculating the final depth and the first depth, the thickness of the silt layer inside the top of the pile foundation can be determined. By setting a scale on the extraction component 1, the depth of the extraction component 1 inserted into the borehole can be observed and recorded intuitively. The structure is simple and the operation is convenient.

[0042] It should be noted that the depth of insertion increases by 30cm to 50cm each time slag is removed.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pile foundation slag removal detection device, characterized in that, include: Extraction element (1), which extends vertically; Slag-collecting component (2), the slag-collecting component (2) is disposed at the lower end of the extraction component (1) and is detachably connected to the extraction component (1), the slag-collecting component (2) is configured to collect slag samples from the pile foundation; The detection element is set on the side of the slag removal element (2) away from the pile foundation. The detection element is used to detect the distance between the upper end of the slag removal element (2) and the top of the pile foundation.

2. The pile foundation slag removal detection device according to claim 1, characterized in that, The slag removal component (2) includes a connecting part (21) and a slag removal part (22). The connecting part (21) is located inside the slag removal part (22). The connecting part (21) has a threaded hole. The lower end of the extraction component (1) extends into the threaded hole and is threadedly connected to the threaded hole. The detection component is located at the upper end of the slag removal part (22). The slag removal part (22) is used to remove slag samples from the pile foundation.

3. The pile foundation slag removal detection device according to claim 2, characterized in that, The pile foundation slag removal detection device also includes a limiting component. The connecting part (21) has a through hole one, which is connected to the threaded hole. The lower end of the extraction component (1) has a through hole two, which are directly opposite each other. The limiting component passes through the through hole one and the through hole two.

4. The pile foundation slag removal detection device according to claim 2, characterized in that, The cross-sectional area of ​​the slag removal section (22) gradually decreases along the vertical direction, and the outer surface of the slag removal section (22) is arc-shaped.

5. The pile foundation slag removal detection device according to claim 1, characterized in that, The extraction component (1) includes a handle (11) and an extraction rod (12). The handle (11) is located at the upper end of the extraction rod (12). The length of the extraction rod (12) is adjustable. The slag removal component (2) is located at the lower end of the extraction rod (12).

6. The pile foundation slag removal detection device according to claim 5, characterized in that, The length of the extraction rod (12) is greater than the distance between the top of the pile and the ground.

7. The pile foundation slag removal detection device according to claim 5, characterized in that, The extraction rod (12) includes a first extraction rod segment and a second extraction rod segment. The lower end of the first extraction rod segment is hollow. One end of the second extraction rod segment extends into the first extraction rod segment and is threadedly connected to the inner wall of the first extraction rod segment. The other end of the second extraction rod segment is detachably connected to the slag removal component (2).

8. The pile foundation slag removal detection device according to claim 7, characterized in that, The second extraction rod segment and the first extraction rod segment are connected by a helical thread.

9. The pile foundation slag removal detection device according to any one of claims 1-8, characterized in that, The extraction piece (1) is provided with a scale.