Device and method for detecting pile bottom sediment and pile end foundation of cast-in-place pile

Abstract

The present invention discloses a device and method for detecting sediment at the bottom of a bored pile and the foundation at the pile end, comprising: a traction assembly, and also comprising: a weighting assembly, the top of which is connected to the traction assembly and is lowered into the acoustic detection tube reserved for the pile foundation along with the traction assembly, and the weighting assembly can increase the overall weight. The present invention belongs to the technical field of bored pile construction quality detection. The purpose of the present invention is to solve the problem in the prior art that the ultrasonic probe may come into contact with floating debris, resulting in the lowering depth being affected and possibly causing damage to the ultrasonic probe. The technical effect achieved is: when the device is placed into the acoustic detection tube, the influence of floating objects can be ignored, the accuracy of the placement depth can be guaranteed, and the ultrasonic probe can be protected to prevent the ultrasonic probe from colliding with gravel or debris.

Description

Technical Field

[0001] The invention relates to the technical field of bored cast-in-place pile construction quality detection, and in particular to a device and method for detecting cast-in-place pile bottom sediment and pile end foundation. Background Art

[0002] In order to detect the quality of bored concrete piles and evaluate whether the pile body quality, pile bottom sediment and pile end bearing layer meet the requirements of the specifications, the pouring quality of bored piles is often tested after concrete pouring. The testing methods include low strain method, ultrasonic method and core drilling method.

[0003] When using the existing ultrasonic method to detect pile bottom sediment and pile end foundation, it is necessary to connect one end of the ultrasonic probe to the traction line and lower the ultrasonic probe into the acoustic detection tube reserved for the pile foundation. At the same time, check the lowering mark of the traction line to ensure the lowering height, so as to assess the quality of the pile bottom sediment and pile end foundation.

[0004] However, the existing ultrasonic detection method has the following defects:

[0005] 1: Gravel or debris may enter the reserved hole of the pile foundation, causing the gravel or debris to float in the water after the ultrasonic testing tube is filled with water. When the ultrasonic probe is lowered, it may come into contact with the floating debris, affecting the lowering depth.

[0006] 2: Based on the background of the first question, when the ultrasonic probe is pulled in the acoustic detection tube, it will collide with gravel or debris, which may cause damage to the ultrasonic probe.

[0007] Therefore, we propose a bored pile bottom sediment and pile end foundation detection device to solve the above-mentioned possible problems. Summary of the Invention

[0008] To this end, the present invention provides a device for detecting sediment at the bottom of a bored pile and a foundation at the pile end, so as to solve the above-mentioned problems in the prior art.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] According to a first aspect of the present invention, a device for detecting sediment at the bottom of a bored pile and a foundation at the pile end includes: a traction assembly; and further includes:

[0011] The weighting component is connected to the traction component at the top and is lowered into the acoustic detection tube reserved in the pile foundation along with the traction component. The weighting component can increase the overall weight;

[0012] The protective component is arranged at the bottom of the weighted component and is lowered into the acoustic detection tube together with the weighted component. The interior of the protective component can not only install and place the ultrasonic probe, but also protect the ultrasonic probe when it is lowered and pulled up;

[0013] The driving component is arranged around the outer wall of the protection component and penetrates the notch of the protection component and the weighting component to be connected. The driving component can drive the protection component away from the weighting component, thereby leaking the ultrasonic probe.

[0014] Furthermore, the traction assembly includes:

[0015] A traction hose, one end of which is connected to the rolling plate and the other end is connected to the top of the weighted component and is capable of pulling the weighted component;

[0016] A scale mark is provided on the surface of the traction hose.

[0017] Furthermore, the weighting component includes:

[0018] The weighted cylinder has a top connected to the traction hose and a bottom in close contact with the protection component;

[0019] An extension edge is provided at the bottom of the weighted cylinder, and the extension edge is inserted into the interior of the protection component and is in close contact with the inner wall of the protection component;

[0020] A driving groove is provided around the outer wall of the weighted cylinder;

[0021] The teeth are arranged inside the driving groove.

[0022] Furthermore, the protection component includes:

[0023] A cone, which is arranged at the bottom of the weighted cylinder;

[0024] A bracket is placed inside the cone, and the ultrasonic probe is detachably mounted inside the cone;

[0025] An extension plate is arranged around the outer wall of the cone;

[0026] The side plate is arranged on one side of the upper end of the outer wall of the extension plate.

[0027] Furthermore, the driving assembly includes:

[0028] a driving motor mounted on an outer wall of the side panel;

[0029] The driving gear is connected to the output end of the driving motor and penetrates the extension plate to be meshed with the teeth in the driving groove.

[0030] The specific steps include:

[0031] S1: Place the weighting component and the protective component into the acoustic testing tube reserved for the pile foundation, and slowly lower them by pulling the traction hose while checking the scale mark on the traction hose to ensure that the lowering depth reaches the standard value;

[0032] S2: Start the driving motor to drive the driving gear to rotate, so that the cone moves toward the lower end, exposing the ultrasonic probe inside the cone;

[0033] S3: Start the ultrasonic probe to perform ultrasonic testing on the pile bottom sediment and pile end foundation. When the testing is completed;

[0034] S4: Start the drive motor to restore the cone to its initial position, then pull up the traction hose and pull the device out of the acoustic testing pipe.

[0035] The present invention has the following advantages:

[0036] By adding weight to the weighted components and protective components, the device can be placed into the acoustic detection tube without the influence of floating objects, thus ensuring the accuracy of the placement depth.

[0037] By setting the protective component in a conical shape and installing the ultrasonic probe inside the protective component, the ultrasonic probe can be protected when the ultrasonic probe is lowered or pulled up, preventing the ultrasonic probe from colliding with gravel or debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a cross-sectional view of the device and method for detecting cast-in-place pile bottom sediment and pile end foundation provided by the present invention.

[0039] Figure 2 A stereoscopic diagram of the device and method for detecting sediment at the bottom of a bored pile and foundation at the pile tip provided by the present invention.

[0040] Figure 3 This is a cross-sectional view of the device and method for detecting cast-in-place pile bottom sediment and pile end foundation provided by the present invention.

[0041] Figure 4 A stereoscopic diagram of the device and method for detecting sediment at the bottom of a bored pile and foundation at the pile tip provided by the present invention.

[0042] Figure 5 A stereoscopic diagram of the device and method for detecting sediment at the bottom of a bored pile and foundation at the pile tip provided by the present invention.

[0043] In the figure: traction component 1, traction hose 11, scale mark 12, weight component 2, weight cylinder 21, extension edge 22, drive groove 23, teeth 24, protection component 3, cone cylinder 31, placement bracket 32, extension plate 33, side plate 34, drive component 4, drive motor 41, drive gear 42, ultrasonic probe 5. Implementation Method

[0044] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention. Example

[0045] like Figures 1 to 5 As shown, the bored pile bottom sediment and pile end foundation detection device in the embodiment of the first aspect of the present invention includes: a traction component 1, characterized in that it also includes:

[0046] The weighting component 2 is connected to the traction component 1 at the top and is lowered into the acoustic detection tube reserved in the pile foundation along with the traction component 1. The weighting component 2 can increase the overall weight;

[0047] The protection component 3 is arranged at the bottom of the weight component 2 and is lowered into the acoustic detection tube together with the weight component 2. The interior of the protection component 3 can not only install and place the ultrasonic probe 5, but also protect the ultrasonic probe 5 when it is lowered and pulled up;

[0048] The driving assembly 4 is arranged around the outer wall of the protection assembly 3 and penetrates the notch between the protection assembly 3 and the weight assembly 2, and can drive the protection assembly 3 away from the weight assembly 2 through the driving assembly 4, thereby leaking the ultrasonic probe 5;

[0049] The technical effect achieved by the above embodiment is as follows: through the weighted setting of the weighted component 2 and the protective component 3, the device can be placed into the acoustic detection tube without the influence of floating objects, thereby ensuring the accuracy of the placement depth; through the conical setting of the protective component 3 and the installation of the ultrasonic probe 5 inside the protective component 3, the ultrasonic probe 5 can be protected when lowering and pulling up, preventing the ultrasonic probe 5 from colliding with gravel or debris, and the device can be placed or pulled up again through the traction component 1. Example

[0050] like Figures 1 to 5 As shown, the bored pile bottom sediment and pile end foundation detection device includes all the contents of embodiment 1. In addition, the traction assembly 1 includes:

[0051] A traction hose 11, one end of which is connected to the rolling plate and the other end is connected to the top of the weight component 2, and is capable of pulling the weight component 2;

[0052] A scale mark 12 is provided on the surface of the traction hose 11 and can be used to check the lowering depth;

[0053] In the above embodiment, it should be noted that the traction hose 11 is hollow so that the line of the ultrasonic probe 5 can pass through it;

[0054] The scale mark 12 is marked with the scale value starting from the point where the protection component 3 moves downward to the lowest end, and the scale mark 12 starts to mark upward to ensure the accuracy of the depth; Example

[0055] like Figures 1 to 5 As shown, the device for detecting sediment at the bottom of a bored pile and foundation at the pile end includes all the contents of embodiment 2. In addition, the weighting component 2 includes:

[0056] The weighted cylinder 21 has its top connected to the traction hose 11 and its bottom in close contact with the protection assembly 3;

[0057] The extension edge 22 is provided at the bottom of the weighted cylinder 21 and is inserted into the interior of the protection component 3 and in close contact with the inner wall of the protection component 3;

[0058] A driving groove 23 is provided around the outer wall of the weighted cylinder 21;

[0059] The teeth 24 are arranged inside the driving groove 23 and can be engaged with the driving assembly 4 and cooperate with the driving assembly 4 to drive the protection assembly 3 to move downward;

[0060] In the above embodiment, it should be noted that the weighting cylinder 21 is made of steel in order to add weight to the device. Example

[0061] like Figures 1 to 5 As shown, the device for detecting sediment at the bottom of a bored pile and foundation at the pile end includes all the contents of embodiment 3. In addition, the protection component 3 includes:

[0062] The cone 31 is provided at the bottom of the weighted cylinder 21 and can protect the ultrasonic probe 5 when it is lowered;

[0063] A bracket 32 ​​is placed inside the cone 31 and allows the ultrasonic probe 5 to be detachably mounted inside.

[0064] An extension plate 33 is provided around the outer wall of the cone 31;

[0065] A side plate 34 provided on one side of an upper end of an outer wall of the extension plate 33;

[0066] In the above embodiment, it should be noted that the cone 31 is made of steel and has a conical design to prevent the bottom from contacting floating objects, thereby avoiding the influence of buoyancy and ensuring that the launch is not affected by buoyancy. Example

[0067] like Figures 1 to 5 As shown, the bored pile bottom sediment and pile end foundation detection device includes all the contents of embodiment 4. In addition, the driving component 4 includes:

[0068] A drive motor 41 mounted on the outer wall of the side plate 34;

[0069] The drive gear 42 is connected to the output end of the drive motor 41, penetrates the extension plate 33 and meshes with the teeth 24 in the drive slot 23. When the drive motor 41 is activated, the protection assembly 3 is driven to move downward, thereby exposing the ultrasonic probe 5, facilitating ultrasonic testing by the ultrasonic probe 5.

[0070] In the above embodiment, it should be noted that when the protection assembly 3 is driven to move to the lowest end by the driving motor 41, the distance at one end of the protection assembly 3 is fixed, and the driving motor 41 is controlled by a wireless controller and can be driven after the rear depth is determined;

[0071] Detection method: Place the weighting component 2 and the protection component 3 into the acoustic detection tube reserved for the pile foundation, and slowly lower the traction hose 11 while checking the scale mark 12 of the traction hose 11 to make the lowering depth reach the standard value. At this time, start the drive motor 41 to drive the drive gear 42 to rotate, so that the cone 31 moves to the lower end, so that the cone 31 exposes the internal ultrasonic probe 5. At this time, start the ultrasonic probe 5 to perform ultrasonic detection on the pile bottom sediment and the pile end foundation. When the detection is completed, start the drive motor 41 again to restore the cone 31 to its initial position, then pull up the traction hose 11, and pull the device out of the acoustic detection tube.

Claims

1. Device for detecting sediment at the bottom of bored piles and foundation at the pile tip, including: The traction assembly (1) is characterized by further comprising: The weighting component (2) is connected to the traction component (1) at its top and is lowered into the acoustic detection tube reserved in the pile foundation along with the traction component (1), and the weighting component (2) can increase the overall weight; A protective component (3) is arranged at the bottom of the weighted component (2) and is lowered into the acoustic detection tube together with the weighted component (2). The interior of the protective component (3) can not only install and place the ultrasonic probe (5), but also protect the ultrasonic probe (5) when it is lowered and pulled up; A driving component (4) is arranged around the outer wall of the protection component (3), and can drive the protection component (3) away from the weighting component (2) through the driving component (4), thereby causing the ultrasonic probe (5) to leak out; The weighting assembly (2) includes: a weighting cylinder (21); a driving groove (23) arranged around the outer wall of the weighting cylinder (21); and teeth (24) arranged inside the driving groove (23); The protection component (3) comprises: A cone (31) is provided at the bottom of the weighted cylinder (21); A placement bracket (32) is arranged inside the cone (31), and the ultrasonic probe (5) is detachably mounted inside the placement bracket (32); An extension plate (33) is arranged around the outer wall of the cone (31); A side plate (34) is provided on one side of an upper end of an outer wall of the extension plate (33); The driving assembly (4) comprises: a drive motor (41) mounted on the outer wall of the side plate (34); The driving gear (42) is connected to the output end of the driving motor (41) and passes through the extension plate (33) to be meshed with the teeth (24) in the driving groove (23).

2. The device for detecting sediment at the bottom of a bored pile and pile end foundation according to claim 1, characterized in that: The traction assembly (1) comprises: A traction hose (11), one end of which is connected to the rolling plate and the other end of which is connected to the top of the weighted component (2), and is capable of pulling the weighted component (2); A scale mark (12) is provided on the surface of the traction hose (11).

3. The device for detecting pile bottom sediment and pile end foundation according to claim 2, characterized in that: The weighting component (2) comprises: A weighted cylinder (21) is connected to the traction hose (11) at its top, and the bottom of the weighted cylinder (21) is in close contact with the protective assembly (3); An extended edge (22) is provided at the bottom of the weighted cylinder (21), and the extended edge (22) is inserted into the interior of the protective component (3) and is in close contact with the inner wall of the protective component (3).

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