Cleaning method for blocked sounding pipe of cast-in-place pile

Abstract

The invention discloses a cleaning method for a blocked sounding pipe of a cast-in-place pile. According to the method, a wire coil, a power source, a control cable, a pulley mechanism, an electromagnetic chuck, a lead screw sliding block mechanism and a mashing device are adopted. The pulley mechanism is used for being installed on the top of the sounding pipe, the electromagnetic chuck is fixedly installed on the back face of the lead screw sliding block mechanism, and the lead screw sliding block mechanism can be fixedly attracted to the inner wall of the sounding pipe through the electromagnetic chuck. The mashing device is fixedly installed on a sliding block of the lead screw sliding block mechanism. When pipe clamping occurs in the sounding pipe, an operator gradually releases a power supply and a control cable, an electromagnetic chuck, a lead screw sliding block mechanism and a mashing device can be integrally and slowly lowered to the pipe clamping position, then the electromagnetic chuck is started, the lead screw sliding block mechanism can be fixed to the inner wall of the sounding pipe, then the lead screw sliding block mechanism and the mashing device are started, and the pipe clamping position is adjusted. And the drill bit rotates and can move downwards, so that blocking objects in the sounding pipe are triturated. After the end, the cable is lifted, and the equipment can be withdrawn.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering monitoring, and in particular relates to a method for cleaning a blocked pipe of a bored pile acoustic detection pipe. Background Art

[0002] The acoustic wave transmission method can be used to detect the integrity of the pile body of concrete cast-in-place piles with a pile diameter of not less than 0.6m, and to determine the location, range and degree of pile body defects. The premise of using the acoustic wave transmission method for pile foundation integrity detection is that a certain number of acoustic detection tubes should be buried in the concrete piles, and the transducer can be raised and lowered normally within the entire range of the acoustic detection tubes. However, in actual engineering, the phenomenon of acoustic detection tubes getting stuck often occurs, causing great trouble to the detection work.

[0003] At present, the buried depth of the acoustic detection pipe is usually 30m to 60m. The acoustic detection pipe needs to be tied when the steel cage is made. Multiple acoustic detection pipes need to be spliced ​​together, and gaps are prone to appear during the splicing process. The steel cage is too long and is limited by transportation and site restrictions. It will be divided into two or three sections. The splicing is completed at the hole during the lowering of the steel cage. The acoustic detection pipe also needs to be connected, and gaps are prone to appear at the interface. When pouring concrete for the pile foundation, it is generally over-poured, and the pile is broken later. During the pile head processing, concrete fragments or other soil materials will fall into the acoustic detection pipe, causing the acoustic detection pipe to get stuck.

[0004] Patent document CN 110270563 A discloses a method for clearing blocked acoustic detection pipes of cast-in-place piles. However, the drilling equipment is large, inflexible, and costly. It is time-consuming and laborious to transport or use, and the efficiency of handling blocked acoustic detection pipes is not high. Summary of the invention

[0005] The invention mainly aims to overcome the deficiencies of the prior art and provides a method for cleaning a blocked pipe of a bored pile acoustic detection pipe.

[0006] The present invention is achieved through the following technical solutions:

[0007] A method for cleaning a blocked pipe of a bored pile acoustic detection pipe, the method comprising: a wire reel, a power supply and control cable, a pulley mechanism, an electromagnetic sucker, a screw slider mechanism and a crushing device;

[0008] The pulley mechanism is used to be installed on the top of the acoustic detection tube;

[0009] The electromagnetic suction cup is fixedly mounted on the back of the screw slider mechanism, and the screw slider mechanism can be fixedly sucked onto the inner wall of the acoustic detection tube through the electromagnetic suction cup;

[0010] The crushing device is fixedly mounted on a slider of a screw slider mechanism, and the crushing device can be driven to move up and down inside the acoustic detection tube through the screw slider mechanism;

[0011] The power supply and control cables are collected in the cable drum, and the power supply and control cables pass through the pulley mechanism and are connected to the electromagnetic suction cup, the screw slider mechanism and the crushing device;

[0012] The method for cleaning the blocked pipe of the bored pile acoustic detection pipe comprises the following steps:

[0013] Step 1: Use a steel bar to insert into the sonic detection tube to determine whether the sonic detection tube is stuck;

[0014] Step 2: When a pipe is stuck, place the electromagnetic suction cup, the screw slider mechanism and the crushing device as a whole into the acoustic detection tube, and then install the pulley mechanism at the top of the acoustic detection tube so that the power supply and control cables pass through the pulley; then slowly rotate the wire drum, gradually release the power supply and control cables, and slowly lower the electromagnetic suction cup, the screw slider mechanism and the crushing device as a whole to the pipe-stuck position. When the power supply and control cables are not subject to tension, it indicates that the electromagnetic suction cup, the screw slider mechanism and the crushing device have reached the pipe-stuck position as a whole;

[0015] Step 3: Turn on the electromagnetic chuck to fix the screw slider mechanism on the inner wall of the acoustic detection tube, and pull the power supply and control cables to determine whether the screw slider mechanism is fixed on the inner wall of the acoustic detection tube;

[0016] Step 4: Open the screw slider mechanism and the crushing device to rotate the drill bit and move it downward to crush the blockage in the acoustic detection tube;

[0017] Step 5: Turn off the electromagnetic suction cup, screw slider mechanism and crushing device, turn the wire drum, retract the power supply and control cables, lift the electromagnetic suction cup, screw slider mechanism and crushing device as a whole to the top of the acoustic detection tube, and then take out the pulley mechanism as well as the electromagnetic suction cup, screw slider mechanism and crushing device.

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

[0019] In the above technical solution, the pulley base includes a circular top plate, a fixed pulley mounting frame and a base, the fixed pulley mounting frame is fixed on the circular top plate, the fixed pulley is installed on the fixed pulley mounting frame, the diameter of the circular top plate is larger than the caliber of the acoustic detection tube, the base is fixedly connected to the bottom surface of the circular top plate, the base is inserted into the top port of the acoustic detection tube, and the circular top plate is positioned above the top port of the acoustic detection tube.

[0020] In the above technical solution, wire holes are provided on the circular top plate and the base for passing power and control cables.

[0021] In the above technical solution, the power supply and control cables are 50-80m long and have scales marked on them.

[0022] In the above technical scheme, the screw slider mechanism includes a driving motor, a slider, a slide rod, a limit 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 to the output shaft of the driving motor. The driving motor is fixed to the end of the mounting seat. The slide rod is fixedly installed on the mounting seat, and the slide rod and the screw rod are parallel to each other. The slider is slidably installed on the slide rod, and the slider is installed in conjunction with the screw rod thread. The drive motor drives the screw rod to rotate, and then the screw rod drives the slider to move linearly along the slide rod; the limit block is arranged at the end of the slide rod, and is used to limit the movement limit position of the slider.

[0023] In the above technical solution, the crushing 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 installed on the chuck, which is easy to remove and install. Different drill bit types can be conveniently selected and installed to adapt to the situation where the soil or concrete pipe is stuck.

[0024] In the above technical solution, a controller and a power supply are arranged on the side of the rotating wire drum, and the controller and the power supply are connected to the power supply and the control cable for controlling the electromagnetic suction cup, the screw slider mechanism and the crushing device.

[0025] The advantages and beneficial effects of the present invention are:

[0026] When a pipe is stuck in the acoustic detection pipe, the operator gradually releases the power and control cables, and can slowly lower the electromagnetic suction cup, the screw slider mechanism and the crushing device as a whole to the pipe-stuck position (when the power and control cables are not subject to tension, it indicates that the electromagnetic suction cup, the screw slider mechanism and the crushing device have reached the pipe-stuck position as a whole), and then opens the electromagnetic suction cup to fix the screw slider mechanism on the inner wall of the acoustic detection pipe, and then opens the screw slider mechanism and the crushing device to rotate the drill bit and move downward, thereby crushing the jam in the acoustic detection pipe. After the end, pull the cable to retract the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the state of the method for cleaning the blocked pipe of the bored pile acoustic detection pipe of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the pulley mechanism adopted by the present invention.

[0029] Figure 3 It is a structural schematic diagram of the screw slider mechanism adopted by the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the crushing device adopted in the present invention.

[0031] Figure 5 It is a structural diagram of a drill bit.

[0032] Figure 6 It is another structural schematic diagram of the drill bit.

[0033] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0035] A method for cleaning the blocked pipe of the bored pile acoustic detection pipe, see the attached Figure 1 The device used in the method includes: a wire drum 1, a power supply and control cable 2, a pulley mechanism 3, an electromagnetic suction cup 4, a screw slider mechanism 5 and a crushing device 6.

[0036] The pulley mechanism 3 is used to be installed on the top of the acoustic detection tube 7. Figure 2 The pulley mechanism 3 includes a pulley base 9 and a fixed pulley 8 mounted on the pulley base 9. The pulley base 9 includes 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, and the fixed pulley 8 is mounted on the fixed pulley mounting frame 91. The diameter of the circular top plate 92 is slightly larger than the diameter of the acoustic detection tube 7. The base 93 is fixedly connected to the bottom surface of the circular top plate 92. The base 93 is preferably an inverted cone structure, so that the base 93 can be easily inserted into the top port of the acoustic detection tube 7, and the circular top plate 92 is positioned above the top port of the acoustic detection tube 7. Furthermore, wire holes are provided on the circular top plate 92 and the base 93 for the power supply and control cables 2 to pass through.

[0037] The electromagnetic suction cup 4 is installed on the back of the screw slider mechanism 5 , and the screw slider mechanism 5 can be fixedly sucked onto the inner wall of the acoustic detection tube 7 through the electromagnetic suction cup 4 .

[0038] The crushing device 6 is fixedly mounted on the slider of the screw slider mechanism 5 , and the screw slider mechanism 5 can drive the crushing device 6 to move up and down inside the acoustic detection tube 7 , so as to crush the stuck objects in the acoustic detection tube 7 .

[0039] The power supply and control cable 2 is preferably 70 m long, with scales marked on it at intervals of 0.5 m (the depth of the stuck pipe can be known during use), and the power supply and control cable 2 is collected in the cable drum 1; when in use, the power supply and control cable 2 can be dragged out of the cable drum 1, and the power supply and control cable 2 can be passed through the pulley mechanism 3 arranged on the top of the acoustic detection tube 7, and connected to the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6.

[0040] Furthermore, the electromagnetic suction cup 4 can generate magnetic force when it is energized, and the electromagnetic force disappears when it is disconnected. This phenomenon can be used to control the fixation and separation of the screw slider mechanism 5 and the acoustic detection tube 7, thereby adjusting the working position of the screw slider mechanism 5 and the crushing device 6.

[0041] For further information, see Appendix Figure 3 The screw slider mechanism 5 includes a driving motor 15, a slider 16, a slide bar 17, a stopper 18, a mounting seat 19 and a screw 20. The screw 20 is rotatably mounted on the mounting seat 19 through a bearing assembly. One end of the screw 20 is connected to the output shaft of the driving motor 15. The driving motor 15 is fixed to the end of the mounting seat 19. The slide bar 17 is fixedly mounted on the mounting seat 19, and the slide bar 17 and the screw 20 are parallel to each other. The slider 16 is slidably mounted on the slide bar 17, and the slider 16 and the screw 20 are threadedly mounted. The screw 20 is driven to rotate by the driving motor 15, and then the screw 20 drives the slider 16 to move linearly along the slide bar 17; the stopper 18 is arranged at the end of the slide bar 17, and is used to limit the movement limit position of the slider 16. The electromagnetic chuck 4 is mounted on the mounting seat 19. Preferably, there are two electromagnetic chucks 4, which are arranged on both sides of the mounting seat 19.

[0042] For further information, see Appendix Figure 4 The crushing device 6 includes an electric motor 21, a gearbox 22, a torque adjustment mechanism 23, a chuck 24 and a drill 25 connected in sequence. The drill 25 is detachably mounted on the chuck 24, which is easy to remove and install. Different drill bit forms can be conveniently selected to adapt to the situation of soil or concrete pipe jams. For example, for the situation of concrete pipe jams, it is suitable to select Figure 5 The drill bit 25a with a smaller working diameter is suitable for the situation where the soil is stuck in the pipe. Figure 6 A drill bit 25b is shown with a larger sized helical rim.

[0043] Furthermore, a controller and a power supply are provided on the side of the rotating wire drum 1, and the controller and the power supply are connected to the power supply and the control cable 2, and can control the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6.

[0044] The method for cleaning the blocked pipe of the bored pile acoustic detection pipe using the above device has the following specific steps:

[0045] Step 1: Use a steel bar to insert the sonic detection tube 7 to determine whether the sonic detection tube 7 is stuck (i.e., determine whether there is a blockage in the sonic detection tube 7). If the tube is stuck, use the device of the present invention to solve the problem of sonic detection tube sticking.

[0046] Step 2: Place the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6 as a whole into the acoustic detection tube 7, and then install the pulley mechanism 3 on the top of the acoustic detection tube 7, so that the power supply and control cable 2 passes through the pulley 8; then slowly rotate the wire drum 1, gradually release the power supply and control cable 2, so as to slowly lower the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6 as a whole to the tube clamping position (when the power supply and control cable 2 are not subject to tension, it indicates that the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6 have reached the tube clamping position as a whole).

[0047] Step 3: Turn on the electromagnetic suction cup 4 to fix the screw slider mechanism 5 on the inner wall of the acoustic detection tube 7, and pull the power and control cable 2 to determine whether the screw slider mechanism 5 is fixed on the inner wall of the acoustic detection tube.

[0048] Step 4: Open the screw slider mechanism 5 and the crushing device 6 to rotate the drill bit 25 and move downward to crush the obstruction in the acoustic detection tube 7.

[0049] Step 5: Turn off the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6, turn the wire drum 1, retract the power and control cable 2, lift the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6 as a whole to the top of the acoustic detection tube 7, and then take out the pulley mechanism 3 and the electromagnetic suction cup 4, the screw slider mechanism 5 and the crushing device 6.

[0050] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0051] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0052] The present invention is described above by way of example. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by those skilled in the art without inventive effort falls within the protection scope of the present invention.

Claims

1. A method for cleaning a bored pile acoustic detection pipe blockage, characterized in that: The method adopts: a wire drum, a power supply and a control cable, a pulley mechanism, an electromagnetic sucker, a screw slider mechanism and a crushing device; The pulley mechanism is used to be installed on the top of the acoustic detection tube; The electromagnetic suction cup is fixedly mounted on the back of the screw slider mechanism, and the screw slider mechanism can be fixedly sucked onto the inner wall of the acoustic detection tube through the electromagnetic suction cup; The crushing device is fixedly mounted on a slider of a screw slider mechanism, and the crushing device can be driven to move up and down inside the acoustic detection tube through the screw slider mechanism; The power supply and control cables are collected in the cable drum, and the power supply and control cables pass through the pulley mechanism and are connected to the electromagnetic suction cup, the screw slider mechanism and the crushing device; The method for cleaning the blocked pipe of the bored pile acoustic detection pipe comprises the following steps: Step 1: Use a steel bar to insert into the sonic detection tube to determine whether the sonic detection tube is stuck; Step 2: When a pipe is stuck, place the electromagnetic suction cup, the screw slider mechanism and the crushing device as a whole into the acoustic detection tube, and then install the pulley mechanism at the top of the acoustic detection tube so that the power supply and control cables pass through the pulley; then slowly rotate the wire drum, gradually release the power supply and control cables, and slowly lower the electromagnetic suction cup, the screw slider mechanism and the crushing device as a whole to the pipe-stuck position. When the power supply and control cables are not subject to tension, it indicates that the electromagnetic suction cup, the screw slider mechanism and the crushing device have reached the pipe-stuck position as a whole; Step 3: Turn on the electromagnetic chuck to fix the screw slider mechanism on the inner wall of the acoustic detection tube, and pull the power supply and control cables to determine whether the screw slider mechanism is fixed on the inner wall of the acoustic detection tube; Step 4: Open the screw slider mechanism and the crushing device to rotate the drill bit and move it downward to crush the blockage in the acoustic detection tube; Step 5: Turn off the electromagnetic suction cup, screw slider mechanism and crushing device, turn the wire drum, retract the power supply and control cables, lift the electromagnetic suction cup, screw slider mechanism and crushing device as a whole to the top of the acoustic detection tube, and then take out the pulley mechanism as well as the electromagnetic suction cup, screw slider mechanism and crushing device.

2. The method for cleaning the blocked pipe of the bored pile acoustic detection pipe according to claim 1, characterized in that: The pulley mechanism comprises a pulley base and a fixed pulley mounted on the pulley base.

3. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 2, characterized in that: The pulley base includes a circular top plate, a fixed pulley mounting frame and a base, the fixed pulley mounting frame is fixed on the circular top plate, the fixed pulley is mounted on the fixed pulley mounting frame, the diameter of the circular top plate is larger than the caliber of the acoustic detection tube, the base is fixedly connected to the bottom surface of the circular top plate, the base is inserted into the top port of the acoustic detection tube, and the circular top plate is positioned above the top port of the acoustic detection tube.

4. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 3 is characterized by: Wire holes are provided on the circular top plate and the base for passing power and control cables.

5. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 1, characterized in that: The power supply and control cables are 50-80m long and have scales marked on them.

6. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 1, characterized in that: The screw slider mechanism includes a driving motor, a slider, a slide rod, a limit 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 to the output shaft of the driving motor. The driving motor is fixed to the end of the mounting seat. The slide rod is fixedly installed on the mounting seat, and the slide rod and the screw rod are parallel to each other. The slider is slidably installed on the slide rod, and the slider is installed in cooperation with the screw rod thread. The drive motor drives the screw rod to rotate, and then the screw rod drives the slider to move linearly along the slide rod; the limit block is arranged at the end of the slide rod, and is used to limit the movement limit position of the slider.

7. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 1, characterized in that: The crushing device comprises an electric motor, a gearbox, a torque regulating mechanism, a chuck and a drill bit which are connected in sequence. The drill bit is detachably mounted on the chuck and is easy to remove and install. Different drill bit forms can be conveniently selected and installed to adapt to the situation where the soil or concrete pipe is stuck.

8. The method for clearing the blocked pipe of the bored pile acoustic detection pipe according to claim 1, characterized in that: A controller and a power supply are arranged on the side of the rotating wire drum, and the controller and the power supply are connected with the power supply and the control cable, and are used to control the electromagnetic suction cup, the screw slider mechanism and the crushing device.

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