Device for replacing muddy water in cast-in-place pile drilling core hole camera shooting detection hole
By designing a device for replacing turbid water in the core borehole of cast-in-place piles using video inspection, the device replaces the turbid water from the bottom of the core borehole using water pressure. This solves the problem of the high-pressure water removal method being time-consuming and ineffective, achieving efficient replacement of turbid water and clear imaging for video inspection, thus improving the accuracy of pile quality assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-11
- Publication Date
- 2026-04-14
AI Technical Summary
The existing high-pressure water cleaning method is time-consuming and the cleaning effect is difficult to meet the requirements when removing turbid water from the core hole, resulting in unclear imaging during camera inspection and inability to accurately judge the quality of the pile.
A device for replacing turbid water in the core borehole of a cast-in-place pile using video detection is designed. By setting up water inlet and drainage channels, water pressure is used to replace turbid water from the bottom of the core borehole, avoiding repeated flushing of turbid water to the top of the borehole. An annular airbag is used to seal the borehole wall to achieve efficient replacement of turbid water.
It improves the efficiency of turbid water replacement in the core borehole, ensures clear imaging of the camera, and enhances the accuracy of pile quality assessment.
Smart Images
Figure CN224120210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile foundation testing technology, and in particular to a device for replacing turbid water in the core hole of a cast-in-place pile using a camera. Background Technology
[0002] When using the core drilling method to test the quality of cast-in-place piles, core samples are taken from the pile foundation. Based on the core samples, the length of the pile foundation, concrete strength, thickness of sediment at the pile bottom, and condition of the bearing stratum can be clearly determined. However, the core drilling method is difficult to detect cracks in the grouting. When using the core drilling method to test the quality of cast-in-place piles, in-hole photography should be used as an auxiliary method to further verify and identify defects in the pile body, determine the thickness of sediment, and identify the soil and rock properties of the bearing stratum at the pile tip.
[0003] However, the mud adhering to the borehole walls, the muddy water inside the borehole, and the sediment at the bottom of the borehole prevent the camera from capturing clear images, thus failing to provide sufficient verification evidence. The existing method for cleaning the borehole is high-pressure water cleaning, which uses a high-pressure water jet to flush the borehole walls, removing the adhering substances, and then draining the turbid water from the borehole. However, high-pressure water cleaning is often time-consuming, and the final cleaning effect often fails to meet the required borehole wall cleanliness standards. The turbid water inside the borehole prevents clear images from the camera, making it impossible to accurately assess the quality of the pile. Utility Model Content
[0004] The main purpose of this invention is to propose a device for replacing turbid water in core holes of cast-in-place piles using video imaging, which aims to improve the efficiency of turbid water replacement in core holes.
[0005] To achieve the above objectives, the present invention proposes a device for replacing turbid water in the core borehole of a cast-in-place pile using video imaging, comprising:
[0006] The replacement body has a water inlet channel and a water outlet channel. The water inlet channel has a water injection end, and the water outlet channel has a water inlet end and a water outlet end. The water injection end is positioned closer to the water outlet end than the water inlet end. The replacement body has an installation section for insertion into a core borehole. The installation section is located on the side of the water injection end away from the water inlet end. When the replacement body is inserted into the core borehole through the installation section, the water injection end is located at the upper part of the core borehole, and the water inlet end is located at the bottom of the core borehole.
[0007] An annular airbag is fitted over the mounting section and is equipped with an inflation valve. The annular airbag is used to seal against the replacement body and the borehole wall when the mounting section is inserted into the core hole.
[0008] Optionally, the annular airbag has an independently formed annular inner cavity, and the inflation valve is connected to the annular inner cavity.
[0009] Optionally, the inflation valve and the annular airbag are connected by an inflation hose.
[0010] Optionally, the annular airbag is made of rubber.
[0011] Optionally, the replacement body includes a replacement pipe and a drain pipe. One end of the replacement pipe forms the water injection end, and the other end is provided with an installation port. The drain pipe is installed inside the replacement pipe through the installation port and extends out from the water injection end. The drain pipe and the installation port are sealed together. The drain pipe and the inner wall of the replacement pipe form the water inlet channel, and the drain pipe forms the drainage channel.
[0012] Optionally, the water inlet channel also has a water receiving end, and the turbid water replacement device in the core hole of the cast-in-place pile also includes a connector assembly and a water pressure gauge. The water pressure gauge is located between the connector assembly and the water receiving end, and the connector assembly is used to connect to an external water source.
[0013] Optionally, the device for replacing turbid water in the core hole of the cast-in-place pile via video inspection further includes a water stop valve, which is connected between the connector assembly and the pressure gauge.
[0014] Optionally, a water pump is connected to the drain end; a gland is installed at the mounting port, and the gland is sealed around the drain pipe.
[0015] Optionally, a fixing bracket is provided on the outer side of the replacement body, the fixing bracket is located at the upper end of the installation section, and the size of the fixing bracket is larger than the radial dimension of the core hole.
[0016] Optionally, the fixing bracket is made of stainless steel.
[0017] This utility model's technical solution involves setting up a water inlet channel and a drainage channel in the replacement body. The water inlet channel has a water injection end, and the drainage channel has a water inlet end and a water outlet end. The water injection end is positioned closer to the drainage end than the water inlet end. The replacement body also has an installation section for insertion into the drill core hole. The installation section is located on the side of the water injection end away from the water inlet end. When the replacement body is inserted into the drill core hole through the installation section, the water injection end is located at the upper part of the drill core hole, and the water inlet end is located at the bottom of the drill core hole. An annular airbag is fitted onto the installation section, and an inflation valve is provided to connect the annular airbag. After the annular airbag is inflated through the inflation valve, it seals against the replacement body and the drill core hole wall, sealing the drill core hole while simultaneously connecting the water inlet channel and the drainage channel to the drill core hole. After tap water is connected to the water inlet channel, tap water is injected into the drill core hole through the water inlet channel and the water injection end. When the drill core hole is full of water, the water inside the drill core hole will enter the drainage channel through the water inlet end under water pressure, and then be discharged out of the drill core hole through the drain outlet. Because the water injection end is located at the top of the core borehole and the water inlet end is located at the bottom, the turbid water inside the core borehole is gradually discharged from the bottom. Clearer tap water then gradually replaces the turbid water from the top of the core borehole until the water inside is relatively clear. Compared to cleaning methods that use high-pressure water to flush the core borehole, this method of using water pressure to discharge turbid water from the bottom of the core borehole avoids the repeated flushing of mud-laden turbid water to the top of the core borehole, thus improving the efficiency of turbid water replacement within the core borehole. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of an embodiment of the turbid water replacement device for core drilling holes of cast-in-place piles according to the present invention.
[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the turbid water replacement device placed in the core hole of the cast-in-place pile.
[0021] Explanation of icon numbers:
[0022]
[0023]
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0028] This utility model proposes a device for replacing turbid water in the core hole of a cast-in-place pile using a camera.
[0029] In the embodiments of this utility model, such as Figure 1 and Figure 2As shown, the turbid water replacement device for the core borehole of the cast-in-place pile includes a replacement body 10 and an annular airbag 20. The replacement body 10 is provided with a water inlet channel 111 and a drainage channel 121. The water inlet channel 111 has a water injection end 112, and the drainage channel 121 has a water inlet end 122 and a drainage end 123. The water injection end 112 is positioned closer to the drainage end 123 than the water inlet end 122. The replacement body 10 has an installation section 115 for insertion into the core borehole 40. Section 115 is located on the side of the water injection end 112 away from the water inlet end 122. When the replacement body 10 is installed into the core hole 40 through the installation section 115, the water injection end 112 is located at the upper part of the core hole 40, and the water inlet end 122 is located at the bottom of the core hole 40. The annular airbag 20 is sleeved on the outside of the installation section 115 and is equipped with an inflation valve. The annular airbag 20 is used to seal against the replacement body 10 and the hole wall of the core hole 40 when the installation section 115 is installed into the core hole 40.
[0030] Specifically, in use, the installation section 115 is first placed inside the core borehole 40. Then, the annular airbag 20 is inflated through the inflation valve, causing the annular airbag 20 to abut against the replacement body 10 and the borehole wall of the core borehole 40. While sealing the core borehole 40, the water inlet channel 111 and the drainage channel 121 are connected to the core borehole 40. The water inlet channel 111 is connected to a tap water pipe, which injects water into the water inlet channel 111. The water flows through the water inlet end 112 into the core borehole 40. Once the core borehole 40 is full of water, under water pressure, the water flows through the water inlet end 122 into the drainage channel 121, and then is discharged from the core borehole 40 through the drainage end 123. The turbid water in the core borehole 40 is gradually replaced by tap water from the tap water pipe until the water in the core borehole 40 becomes relatively clear. This facilitates imaging of the core borehole 40 by the camera for video inspection.
[0031] The present invention provides a water inlet channel 111 and a drainage channel 121 in the replacement body 10. The water inlet channel 111 has a water injection end 112, and the drainage channel 121 has a water inlet end 122 and a drainage end 123. The water injection end 112 is positioned closer to the drainage end 123 than the water inlet end 122. The replacement body 10 also has an installation section 115 for insertion into the core hole 40. The installation section 115 is located on the side of the water injection end 112 away from the water inlet end 122. When the replacement body 10 is inserted into the core hole 40 through the installation section 115, the water injection end 112 is located at the upper part of the core hole 40, and the water inlet end 122 is located at the bottom of the core hole 40. An annular airbag 20 is fitted onto the installation section 115, and an inflation valve is provided to connect the annular airbag 20. After the annular airbag 20 is inflated through the inflation valve, it is sealed against the wall between the replacement body 10 and the core hole 40. While sealing the core hole 40, the water inlet channel 111 and the drainage channel 121 are connected to the core hole 40. After the tap water is connected to the water inlet channel 111, the tap water is injected into the core hole 40 through the water inlet channel 111 and the water injection end 112. When the core hole 40 is full of water, the water in the core hole 40 will enter the drainage channel 121 through the water inlet end 122 under the action of water pressure, and then be discharged to the outside of the core hole 40 through the drain outlet. Since the water inlet 112 is located at the top of the core borehole 40 and the water outlet 122 is located at the bottom of the core borehole 40, the turbid water inside the core borehole 40 is gradually discharged from the bottom. Clearer tap water gradually replaces the turbid water from the top of the core borehole 40 until the water inside the core borehole 40 is relatively clear. Compared to cleaning methods that use high-pressure water to flush the core borehole 40, this method of using water pressure to discharge turbid water from the bottom of the core borehole 40 avoids the repeated flushing of mud-laden turbid water to the top of the core borehole, thus improving the efficiency of turbid water replacement within the core borehole.
[0032] In some embodiments, the annular airbag 20 has an independently formed annular inner cavity, and the inflation valve communicates with the annular inner cavity. Specifically, the annular inner cavity is arranged around the inner hole of the annular airbag 20, so that the annular airbag 20 is independent of the replacement body 10, which facilitates the configuration of the annular airbag 20 as a detachable structure for easy replacement. In other embodiments, the annular airbag 20 surrounds the periphery of the mounting section 115 to form an inflatable inner cavity together with the outer surface of the mounting section 115.
[0033] In some embodiments, the inflation valve and the annular airbag 20 are connected by an inflation hose 30. Specifically, when the replacement body 10 is placed inside the drill hole 40, the inflation hose 30 extends out from inside the drill hole 40, so that the inflation valve is located outside the drill hole 40, making it easier to inflate and deflate the annular airbag 20.
[0034] In some embodiments, the annular airbag 20 is made of rubber. Specifically, this allows the annular airbag 20 to have good flexibility, and the material is relatively inexpensive, easy to mold, and can reduce costs. Of course, in other embodiments, the annular airbag 20 can also be made of fabric or nylon, etc.
[0035] In some embodiments, the replacement body 10 includes a replacement pipe 11 and a drain pipe 12. One end of the replacement pipe 11 forms a water inlet end 112, and the other end is provided with an installation port. The drain pipe 12 is installed in the replacement pipe 11 through the installation port and extends out from the water inlet end 112. The drain pipe 12 and the installation port are sealed together. A water inlet channel 111 is formed between the drain pipe 12 and the inner wall of the replacement pipe 11. A drain channel 121 is formed inside the drain pipe 12.
[0036] Specifically, the drain pipe 12 is detachable, which facilitates the installation of core holes 40 at different depths. By adjusting the installation position of the drain pipe 12, the water inlet 122 can be located at the bottom of the core hole 40 at different depths. Furthermore, by installing the water pipe inside the replacement pipe 11, the inner walls of the drain pipe 12 and the replacement pipe 11 form a water inlet channel 111, resulting in a simpler structure that eliminates the need to form two channels within the replacement pipe 11. Additionally, the drain pipe 12 is made of PVC material, which provides flexibility for easy storage, good strength, and some corrosion resistance. Alternatively, in other embodiments, a water inlet channel 111 and a drain channel 121 are formed within the replacement pipe 11, and the drain pipe 12 is installed within the drain channel 121.
[0037] In some embodiments, the water inlet channel 111 further includes a water receiving end 113. The turbid water replacement device in the core hole of the cast-in-place pile also includes a connector assembly 117 and a water pressure gauge 114. The water pressure gauge 114 is located between the connector assembly 117 and the water receiving end 113. The connector assembly 117 is used to connect to an external water source. Specifically, the external water source can be a tap water pipe. After the connector assembly 117 is connected to the tap water pipe, tap water is injected into the core hole 40 through the connector assembly 117 and the water inlet channel 111. At the same time, the water pressure gauge 114 monitors the water pressure in the core hole 40, which can promptly detect abnormalities in the core hole 40, so that construction personnel can respond in a timely manner.
[0038] In some embodiments, the device for replacing turbid water in the core borehole of the cast-in-place pile via video inspection also includes a stop valve 50, which is connected between the connector assembly 117 and the pressure gauge 114. Specifically, this allows for convenient control of external water supply through the stop valve 50 when abnormal replacement of turbid water occurs in the core borehole 40, without the need to control the external water supply valve.
[0039] In some embodiments, a water pump is connected to the water end 123. Specifically, the water pump pumps water into the core hole 40, thereby accelerating the efficiency of replacing the turbid water in the core hole 40.
[0040] In some embodiments, a gland 116 is installed at the mounting port, and the gland 116 is sealed around the drain pipe 12. Specifically, when the gland 116 is loosened, a gap exists between the drain pipe 12 and the mounting port, and the gap connects to the core hole 40. This reduces the water pressure inside the core hole 40, causing the turbid water in the cracks on the wall of the core hole 40 to flow back into the core hole 40 when the water pressure decreases, and then be discharged outside the core hole 40 through the gap in the drain pipe 12. In this way, by loosening the gland 116 to reduce the water pressure inside the core hole 40, the efficiency of replacing the turbid water inside the core hole 40 can be improved.
[0041] In some embodiments, a fixing bracket 13 is provided on the outer side of the replacement body 10. The fixing bracket 13 is located at the upper end of the mounting section 115, and the size of the fixing bracket 13 is larger than the radial size of the core hole 40. Specifically, the fixing bracket 13 supports the replacement body 10, preventing the replacement body 10 from falling into the core hole 40. In other embodiments, the size of the upper end of the replacement body 10 is larger than the radial size of the core hole 40.
[0042] In some embodiments, the fixing bracket 13 is made of stainless steel. Specifically, this makes the fixing bracket 13 more corrosion resistant and stronger. In other embodiments, the fixing bracket 13 is made of aluminum alloy.
[0043] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A device for replacing turbid water in a core borehole of a cast-in-place pile using video imaging, characterized in that, include: The replacement body has a water inlet channel and a water outlet channel. The water inlet channel has a water injection end, and the water outlet channel has a water inlet end and a water outlet end. The water injection end is positioned closer to the water outlet end than the water inlet end. The replacement body has an installation section for insertion into a core borehole. The installation section is located on the side of the water injection end away from the water inlet end. When the replacement body is inserted into the core borehole through the installation section, the water injection end is located at the upper part of the core borehole, and the water inlet end is located at the bottom of the core borehole. An annular airbag is fitted over the mounting section and is equipped with an inflation valve. The annular airbag is used to seal against the replacement body and the borehole wall when the mounting section is inserted into the core hole.
2. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 1, characterized in that, The annular airbag has an independently formed annular inner cavity, and the inflation valve is connected to the annular inner cavity.
3. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 1, characterized in that, The inflation valve and the annular airbag are connected by an inflation hose.
4. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 1, characterized in that, The annular airbag is made of rubber.
5. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 1, characterized in that, The replacement body includes a replacement pipe and a drain pipe. One end of the replacement pipe forms the water injection end, and the other end is provided with an installation port. The drain pipe is installed inside the replacement pipe through the installation port and extends out from the water injection end. The drain pipe and the installation port are sealed together. The drain pipe and the inner wall of the replacement pipe form the water inlet channel, and the drain pipe forms the drainage channel.
6. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 5, characterized in that, The water inlet channel also has a water receiving end. The turbid water replacement device in the core hole of the cast-in-place pile also includes a connector assembly and a water pressure gauge. The water pressure gauge is located between the connector assembly and the water receiving end. The connector assembly is used to connect to an external water source.
7. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 6, characterized in that, The device for replacing turbid water in the core hole of the cast-in-place pile via video inspection also includes a water stop valve, which is connected between the connector assembly and the water pressure gauge.
8. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 6, characterized in that, A water pump is connected to the drain end; a gland is installed at the mounting port, and the gland is sealed to the outside of the drain pipe.
9. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 1, characterized in that, A fixing bracket is provided on the outside of the replacement body. The fixing bracket is located at the upper end of the installation section, and the size of the fixing bracket is larger than the radial size of the core hole.
10. The device for replacing turbid water in the core borehole of a cast-in-place pile as described in claim 9, characterized in that, The fixing bracket is made of stainless steel.