A method for cleaning a blocked sounding pipe of a cast-in-place pile

Abstract

The application discloses a kind of cleaning methods for pouring pile acoustic pipe blocking pipe, the method uses: wire reel, power supply and control cable, pulley mechanism, electromagnetic chuck, screw block mechanism and mashing device;Pulley mechanism is used to install at the top of acoustic pipe, electromagnetic chuck is fixedly installed at the back of screw block mechanism, and the inner wall of acoustic pipe can be fixedly attracted on the inner wall of acoustic pipe by electromagnetic chuck;Mashing device is fixedly installed on the slider of screw block mechanism.When pipe blocking occurs in acoustic pipe, the operator gradually releases power supply and control cable, the electromagnetic chuck, screw block mechanism and mashing device can be slowly lowered to the pipe blocking position as a whole, then the electromagnetic chuck is turned on, the screw block mechanism can be fixed on the inner wall of acoustic pipe, and then the screw block mechanism and mashing device are turned on, so that the drill bit rotates and can move downward, so as to mash the blocking object in the acoustic pipe.After the end, the cable can be lifted, and the equipment can be recovered.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of engineering monitoring, and particularly relates to a cleaning method for a bored pile acoustic pipe blockage. BACKGROUND

[0002] The acoustic wave transmission method can be used for pile body integrity detection of a concrete bored pile with a pile diameter not less than 0.6 m, to determine the position, range and degree of pile body defects. The premise of pile foundation integrity detection using the acoustic wave transmission method is that the concrete pile should be buried with a certain number of acoustic pipes, and the transducer can normally ascend and descend in the full range of the acoustic pipe. However, in engineering practice, the phenomenon of acoustic pipe blockage often occurs, causing great trouble to the detection work.

[0003] At present, the buried depth of the acoustic pipe is usually 30 m to 60 m, and the acoustic pipe needs to be bound when the reinforcement cage is made. The acoustic pipe needs to be spliced with multiple pipes, and gaps are prone to occur during the splicing process. The reinforcement cage is too long, and is limited by transportation and site restrictions, and will be divided into two or three sections. The splicing is completed at the opening during the reinforcement cage lowering process, and the acoustic pipe also needs to be connected, and gaps are prone to occur at the interface. The concrete is generally over-poured during pile foundation pouring, and the pile is broken later, and concrete chunks or other soil materials will fall into the acoustic pipe during the pile head treatment process, causing the acoustic pipe blockage.

[0004] The patent file with the patent number CN 110270563 A discloses a cleaning method for a bored pile acoustic pipe blockage, but the drilling equipment is large in size, not flexible, high in cost, and time-consuming and labor-consuming to move or use, and the processing efficiency is not high for the acoustic pipe blockage. SUMMARY

[0005] The present application mainly overcomes the deficiencies of the prior art, and provides a cleaning method for a bored pile acoustic pipe blockage.

[0006] The present application is realized by the following technical solutions:

[0007] A cleaning method for a bored pile acoustic pipe blockage, which adopts: a wire reel, a power supply and a control cable, a pulley mechanism, an electromagnetic suction cup, a screw block mechanism and a smashing device;

[0008] The pulley mechanism is used to be installed at the top of the acoustic pipe;

[0009] The electromagnetic suction cup is fixedly installed on the back of the screw block mechanism, and the electromagnetic suction cup can fix and attract the screw block mechanism on the inner wall of the acoustic pipe;

[0010] The smashing device is fixedly installed on the sliding block of the screw block mechanism, and the screw block mechanism can drive the smashing device to move up and down in the acoustic pipe;

[0011] The power supply and control cable is collected in the reel, passes through the pulley mechanism, and is connected to the electromagnetic chuck, the screw block mechanism and the crushing device.

[0012] The method for cleaning the blocked pipe of the sounding pipe of the cast-in-place pile comprises the following steps:

[0013] Step one: determine whether the sounding pipe is blocked by inserting a steel bar into the sounding pipe.

[0014] Step two: when the sounding pipe is blocked, the electromagnetic chuck, the screw block mechanism and the crushing device are put into the sounding pipe, the pulley mechanism is installed at the top end of the sounding pipe, the power supply and control cable passes through the pulley, the reel is slowly rotated, the power supply and control cable is gradually released, the electromagnetic chuck, the screw block mechanism and the crushing device are slowly lowered to the blocked position, and when the power supply and control cable is not pulled, it is indicated that the electromagnetic chuck, the screw block mechanism and the crushing device reach the blocked position.

[0015] Step three: the electromagnetic chuck is turned on, the screw block mechanism is fixed on the inner wall of the sounding pipe, and whether the screw block mechanism is fixed on the inner wall of the sounding pipe is determined by pulling the power supply and control cable.

[0016] Step four: the screw block mechanism and the crushing device are turned on, the drill bit is rotated and moved downward, and the blocking object in the sounding pipe is crushed.

[0017] Step five: the electromagnetic chuck, the screw block mechanism and the crushing device are turned off, the reel is rotated, the power supply and control cable is retracted, the electromagnetic chuck, the screw block mechanism and the crushing device are lifted to the top of the sounding pipe, and then the pulley mechanism and the electromagnetic chuck, the screw block mechanism and the crushing device are taken out.

[0018] In the above technical solution, the pulley mechanism comprises a pulley base and a fixed pulley installed on the pulley base.

[0019] In the above technical solution, the pulley base comprises a circular top plate, a fixed pulley mounting rack and a base, the fixed pulley mounting rack is fixed on the circular top plate, the fixed pulley is installed on the fixed pulley mounting rack, the diameter of the circular top plate is greater than the caliber of the sounding pipe, the base is fixedly connected to the bottom surface of the circular top plate, the base is inserted into the top port of the sounding pipe, and the circular top plate is positioned above the top port of the sounding pipe.

[0020] In the above technical solution, a threading hole is arranged on the circular top plate and the base for the power supply and control cable to pass through.

[0021] In the above technical solution, the length of the power supply and control cable is 50-80 m, and a scale is marked thereon.

[0022] In the technical scheme, the screw rod and sliding block mechanism comprises a driving motor, a sliding block, a sliding rod, a limiting block, a mounting seat and a screw rod, the screw rod is installed on the mounting seat through a bearing assembly, one end of the screw rod is connected with an output shaft of the driving motor, the driving motor is fixed on an end portion of the mounting seat, the sliding rod is fixedly installed on the mounting seat and is parallel to the screw rod, the sliding block is slidingly installed on the sliding rod and is threadedly installed with the screw rod, the driving motor drives the screw rod to rotate, and then the screw rod drives the sliding block to move linearly along the sliding rod; the limiting block is arranged at an end portion of the sliding rod and is used for limiting the limit position of the sliding block.

[0023] In the technical scheme, the ramming device comprises an electric motor, a gearbox, a torsion adjusting mechanism, a chuck and a drill bit which are connected in sequence, the drill bit is detachably installed on the chuck, and the drill bit can be easily detached and installed, so that different drill bit forms can be selected and installed to adapt to the situation of the pipe being stuck in the soil or concrete.

[0024] In the technical scheme, a controller and a power supply are arranged on the side of the rotating wire reel, the controller and the power supply are connected with the power supply and control cable, and are used for controlling the electromagnetic chuck, the screw rod and sliding block mechanism and the ramming device.

[0025] The advantages and beneficial effects of the present application are as follows:

[0026] When the pipe is stuck in the sounding pipe, the operator gradually releases the power supply and control cable, the electromagnetic chuck, the screw rod and sliding block mechanism and the ramming device are slowly lowered to the pipe-stuck position (when the power supply and control cable are not subjected to tension, it indicates that the electromagnetic chuck, the screw rod and sliding block mechanism and the ramming device have reached the pipe-stuck position), then the electromagnetic chuck is turned on, the screw rod and sliding block mechanism is fixed on the inner wall of the sounding pipe, and then the screw rod and sliding block mechanism and the ramming device are turned on, so that the drill bit rotates and moves downward, thereby ramming the blocking object in the sounding pipe. After the operation is completed, the cable is pulled to recover the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a state diagram of the method for cleaning the stuck pipe of the cast-in-place pile sounding pipe.

[0028] Figure 2 is a structure diagram of the pulley mechanism.

[0029] Figure 3 is a structure diagram of the screw rod and sliding block mechanism.

[0030] Figure 4 is a structure diagram of the ramming device.

[0031] Figure 5 is a structure diagram of the drill bit.

[0032] Figure 6 is another schematic view of a drill bit.

[0033] For those skilled in the art, other related drawings can be obtained from the above drawings without creative labor. DETAILED DESCRIPTION

[0034] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme of the present application will be further described below in combination with specific embodiments.

[0035] A cleaning method for a cast-in-place pile acoustic pipe blockage, referring to the accompanying drawings Figure 1 The device used in the method comprises a wire reel 1, a power supply and control cable 2, a pulley mechanism 3, an electromagnetic suction cup 4, a screw block mechanism 5 and a crushing device 6.

[0036] The pulley mechanism 3 is used to be installed at the top of the acoustic pipe 7, specifically referring to the accompanying drawings Figure 2 , the pulley mechanism 3 comprises a pulley base 9 and a fixed pulley 8 installed on the pulley base 9, the pulley base 9 comprises a circular top plate 92, a fixed pulley mounting frame 91 and a base 93, the fixed pulley mounting frame 91 is fixed on the circular top plate 92, the fixed pulley 8 is installed on the fixed pulley mounting frame 91, the diameter of the circular top plate 92 is slightly larger than the caliber of the acoustic pipe 7, the base 93 is fixedly connected to the bottom surface of the circular top plate 92, and the base 93 is preferably an inverted conical structure, so as to facilitate the insertion of the base 93 into the top port of the acoustic pipe 7 and the positioning of the circular top plate 92 above the top port of the acoustic pipe 7. Further, a wire hole is provided on the circular top plate 92 and the base 93 for the power supply and control cable 2 to pass through.

[0037] The electromagnetic suction cup 4 is installed on the back of the screw block mechanism 5, and the screw block mechanism 5 can be fixedly attracted to the inner wall of the acoustic pipe 7 through the electromagnetic suction cup 4.

[0038] The crushing device 6 is fixedly installed on the sliding block of the screw block mechanism 5, and the crushing device 6 can be driven to move up and down inside the acoustic pipe 7 through the screw block mechanism 5, so as to crush the blockage in the acoustic pipe 7.

[0039] The length of the power supply and control cable 2 is preferably 70 m, and a scale is marked every 0.5 m thereon (the depth of the pipe blockage can be known during use), and the power supply and control cable 2 is collected in the wire reel 1; during use, the power supply and control cable 2 can be pulled out of the wire reel 1, passed through the pulley mechanism 3 provided at the top of the acoustic pipe 7, and connected to the electromagnetic suction cup 4, the screw block mechanism 5 and the crushing device 6.

[0040] Further, the electromagnetic chuck 4 can generate magnetic force when powered, and the magnetic force disappears when powered off. By using this phenomenon, the fixing and separation of the lead screw and sliding block mechanism 5 and the sounding pipe 7 can be controlled, so as to adjust the working position of the lead screw and sliding block mechanism 5 and the ramming device 6.

[0041] Further, referring to the accompanying drawings Figure 3 The lead screw and sliding block mechanism 5 comprises a driving motor 15, a sliding block 16, a sliding rod 17, a limiting block 18, a mounting seat 19 and a lead screw 20. The lead screw 20 is rotatably installed on the mounting seat 19 through a bearing assembly. One end of the lead screw 20 is connected with the output shaft of the driving motor 15, and the driving motor 15 is fixed on the end of the mounting seat 19. The sliding rod 17 is fixedly installed on the mounting seat 19 and is parallel to the lead screw 20. The sliding block 16 is slidingly installed on the sliding rod 17 and is threadedly installed with the lead screw 20. The driving motor 15 drives the rotation of the lead screw 20, and then the lead screw 20 drives the linear motion of the sliding block 16 along the sliding rod 17. The limiting block 18 is arranged at the end of the sliding rod 17 and is used for limiting the limit position of the sliding block 16. The electromagnetic chuck 4 is installed on the mounting seat 19. Preferably, the number of the electromagnetic chucks 4 is two, which are arranged on both sides of the mounting seat 19.

[0042] Further, referring to the accompanying drawings Figure 4 The ramming device 6 comprises an electric motor 21, a gearbox 22, a torsion adjusting mechanism 23, a chuck 24 and a drill bit 25 which are connected in sequence. The drill bit 25 is detachably installed on the chuck 24, which can be easily disassembled and installed, and different drill bit forms can be conveniently selected and installed to adapt to the situation of the soil or concrete pipe blockage. For example, for the situation of the concrete pipe blockage, the drill bit 25a with a smaller working diameter is suitable, and for the situation of the soil pipe blockage, the drill bit 25b with a larger size spiral edge is suitable. Figure 5 Figure 6

[0043] Further, the controller and power supply are arranged on the side of the rotating reel 1, and the controller and power supply are connected with the power supply and control cable 2, so as to control the electromagnetic chuck 4, the lead screw and sliding block mechanism 5 and the ramming device 6.

[0044] The cleaning method of the pile sounding pipe blockage using the above device is as follows:

[0045] Step one: the reinforcing steel bar is inserted into the sounding pipe 7 to determine whether the sounding pipe 7 is blocked (i.e. whether there is a blockage in the sounding pipe 7), and if the sounding pipe 7 is blocked, the device for solving the problem of the sounding pipe blockage is used.

[0046] ​​Step two: put the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6 into the sounding pipe 7, then install the pulley mechanism 3 at the top of the sounding pipe 7, and make the power supply and control cable 2 pass through the pulley 8; then slowly rotate the wire reel 1 to gradually release the power supply and control cable 2, so as to slowly lower the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6 to the pipe blocking position (when the power supply and control cable 2 is not pulled, it means that the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6 have reached the pipe blocking position).

[0047] Step three: open the electromagnetic chuck 4, and determine whether the screw rod and sliding block mechanism 5 is fixed on the inner wall of the sounding pipe 7 by pulling the power supply and control cable 2.

[0048] Step four: open the screw rod and sliding block mechanism 5 and the crushing device 6, and make the drill bit 25 rotate and move downward to crush the pipe blocking object in the sounding pipe 7.

[0049] Step five: close the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6, rotate the wire reel 1 to retract the power supply and control cable 2, lift the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6 to the top of the sounding pipe 7, and then take out the pulley mechanism 3 and the electromagnetic chuck 4, the screw rod and sliding block mechanism 5 and the crushing device 6.

[0050] For ease of explanation, spatially relative terms such as "upper", "lower", "left", "right", and the like, are used in the examples to describe one element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as being on the "lower" side of other elements or features would then be oriented on the "upper" sides thereof. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0051] Also, the terms "first" and "second" are used only to distinguish one component from another, and do not necessarily require or imply any actual relationship or order between the components.

[0052] The above has been described as an example of the present application, and it should be noted that any simple modification, change or other equivalent replacement that does not deviate from the core of the present application and can be made by those skilled in the art without creative labor falls within the protection scope of the present application.

Claims

1. A method for cleaning blockages in sonic logging pipes of cast-in-place piles, characterized in that: This method employs: a coil, power and control cables, a pulley mechanism, an electromagnetic chuck, a screw-slider mechanism, and a crushing device; The pulley mechanism is used to install on the top of the acoustic logging tube; The electromagnetic chuck is fixedly installed on the back of the lead screw and slider mechanism, and the lead screw and slider mechanism can be fixedly attracted to the inner wall of the acoustic tube by the electromagnetic chuck. The crushing device is fixedly installed on the slider of the screw-slider mechanism, which can drive the crushing device to move up and down inside the sonic logging tube. The power and control cables are collected in the reel, and pass through the pulley mechanism to connect to the electromagnetic chuck, the lead screw and slider mechanism and the crushing device. The method for cleaning blockages in the sonic logging pipes of cast-in-place piles includes the following steps: Step 1: Insert a steel bar into the sonic logging tube to determine if the tube is stuck; Step 2: When pipe jamming occurs, place the electromagnetic chuck, lead screw and slider mechanism, and crushing device into the sonic logging tube as a whole. Then, install the pulley mechanism at the top of the sonic logging tube so that the power supply and control cable pass through the pulley. Then, slowly rotate the coil to gradually release the power supply and control cable. Slowly lower the electromagnetic chuck, lead screw and slider mechanism, and crushing device to the jamming position. When the power supply and control cable are no longer under tension, it indicates that the electromagnetic chuck, lead screw and slider mechanism, and crushing device have reached the jamming position. Step 3: Turn on the electromagnetic chuck to fix the lead screw and slider mechanism to the inner wall of the acoustic tube. Determine whether the lead screw and slider mechanism is fixed to the inner wall of the acoustic tube by pulling the power supply and control cable. Step 4: Activate the lead screw and slider mechanism and the crushing device to make the drill bit rotate and move downward to crush the blockage in the sonic logging tube; Step 5: Turn off the electromagnetic chuck, lead screw and slider mechanism and crushing device, rotate the coil, retract the power supply and control cable, lift the electromagnetic chuck, lead screw and slider mechanism and crushing device as a whole to the top of the sonic logging tube, and then take out the pulley mechanism as well as the electromagnetic chuck, lead screw and slider mechanism and crushing device.

2. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 1, characterized in that: The pulley mechanism includes a pulley base and a fixed pulley mounted on the pulley base.

3. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 2, characterized in that: The pulley base includes a circular top plate, a fixed pulley mounting bracket, and a base. The fixed pulley mounting bracket is fixed on the circular top plate, and the fixed pulley is mounted on the fixed pulley mounting bracket. The diameter of the circular top plate is larger than the diameter of the sonic logging tube. The base is fixedly connected to the bottom surface of the circular top plate, and the base is inserted into the top port of the sonic logging tube. The circular top plate is positioned above the top port of the sonic logging tube.

4. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 3, characterized in that: The circular top plate and base are provided with wiring holes for power and control cables to pass through.

5. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 1, characterized in that: The power supply and control cable is 50-80m long and is marked with graduations.

6. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 1, characterized in that: The lead screw and slider mechanism includes a drive motor, a slider, a sliding rod, a limiting block, a mounting base, and a lead screw. The lead screw is mounted on the mounting base via a bearing assembly. One end of the lead screw is connected to the output shaft of the drive motor, which is fixed to the end of the mounting base. The sliding rod is fixedly mounted on the mounting base and is parallel to the lead screw. The slider is slidably mounted on the sliding rod and is threadedly fitted to the lead screw. The drive motor drives the lead screw to rotate, which in turn drives the slider to move linearly along the sliding rod. The limiting block is located at the end of the sliding rod and is used to limit the slider's movement to its extreme positions.

7. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 1, characterized in that: The tamping device includes an electric motor, a gearbox, a torque adjustment mechanism, a chuck, and a drill bit connected in sequence. The drill bit is detachably mounted on the chuck, making it easy to remove and install. Different drill bit types can be conveniently selected to adapt to situations where soil or concrete blocks the pipe.

8. The method for cleaning the blockage of the sonic logging pipe in a cast-in-place pile according to claim 1, characterized in that: A controller and a power supply are provided on the side of the rotating reel. The controller and power supply are connected to the power supply and control cable to control the electromagnetic chuck, the lead screw and slider mechanism, and the crushing device.

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