Method for tamping and compacting concrete outside cast-in-place pile reinforcement cage

Abstract

The invention discloses a method for tamping and compacting concrete outside a cast-in-place pile reinforcement cage. The method is realized by adopting a tamping and compacting device. The control mechanism is adopted for intelligent control, the depth of the inserting and tamping mechanism and the depth of the force measuring mechanism and the dense state of concrete pouring outside the reinforcement cage at the depth can be measured in real time, and the control mechanism adjusts the on-off state of the inserting and tamping mechanism according to the size relation between the acting force measured on the force measuring mechanism and the pore pressure value at the depth. And meanwhile, the depth measuring mechanism can drive the force measuring mechanism and the inserting and tamping mechanism to be lifted upwards, whether the concrete pouring outside the reinforcement cage is dense or not can be detected, further treatment can be carried out under the condition that the concrete pouring is not dense, and the construction efficiency is improved. And the pile forming quality of the pile body concrete is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, in particular to a method for compacting concrete outside a cast-in-place pile reinforcement cage. Background Art

[0002] Cast-in-place piles are widely used in large-scale engineering construction because of their high single-pile bearing capacity, simple construction process, and suitability for use in densely built areas. Cast-in-place piles require drilling holes first, then lowering steel cages, and finally pouring concrete. In actual pile foundation projects, the diameter of the steel cage is smaller than the diameter of the cast-in-place pile. For example, the diameter of a steel cage with a pile diameter of 1200mm is 1056mm, and the diameter of a steel cage with a pile diameter of 1500mm is 1356mm. When pouring concrete, a conduit will be placed in the steel cage, relying on the fluidity of the concrete itself to cover every part of the pile foundation, including the spacing area between the steel cage and the hole wall.

[0003] At present, not much attention has been paid to the compaction state of concrete in the area between the steel cage and the hole wall. Although the space in this area is not large and concrete can generally fill this area, there may be cases where the steel bars in the steel cage are too dense, the pores are small, the concrete quality is average, and the pores are just blocked. In this case, there is no concrete or less concrete in this area, resulting in the pile foundation concrete not fitting well with the hole wall, thus causing damage to the integrity of the pile body and the bearing capacity of the pile foundation.

[0004] Patent No. CN 104404962 A discloses a device for compacting concrete bored piles. However, the device only solves the problem of the compaction of concrete inside the steel cage, and does not involve the problem of the compaction of concrete outside the steel cage. This problem is not found in other patents. This patent fills this gap and is of great significance to the quality of bored piles. Summary of the invention

[0005] In order to solve the deficiencies of the above technical solutions, the object of the present invention is to provide a method for compacting the concrete outside the reinforced cage of a cast-in-place pile.

[0006] The purpose of the present invention is achieved through the following technical solutions.

[0007] A method for compacting concrete outside a cast-in-place pile reinforcement cage, the method is implemented by a compacting device, the compacting device comprises a tamping mechanism, a force measuring mechanism, a depth measuring mechanism and a control mechanism, the force measuring mechanism is located at the bottom of the tamping mechanism, the depth measuring mechanism connects the tamping mechanism and the force measuring mechanism through a depth acquisition line to pull the tamping mechanism and the force measuring mechanism upward, the control mechanism connects the tamping mechanism, the detection mechanism and the depth measuring mechanism respectively; when working, the tamping mechanism and the force measuring mechanism are placed in a borehole along the inner wall of a steel casing, and the depth measuring mechanism and the control mechanism are located on the ground;

[0008] The force measuring mechanism includes a pressure sensor for sensing the force of concrete around it and feeding it back to the control mechanism; the depth measuring mechanism includes a counter and a rotating wheel driven to rotate, the depth acquisition line is wound around the rotating wheel, the counter is arranged above the rotating wheel to detect the distance moved by the depth acquisition line, that is, the depth of descent of the tamping mechanism and the force measuring mechanism, and feeds it back to the control mechanism, the tamping mechanism includes a tamping rod driven to reciprocate, when the sensed force and the pore pressure value at this depth meet the requirement of consistency, the control mechanism starts the tamping mechanism to tamping the concrete in the steel cage at this depth until the concrete at this depth is dense;

[0009] The method comprises the following steps:

[0010] Step 1, drilling a hole at a target location, inserting a steel casing and a steel cage in sequence, and then inserting the tamping mechanism and the force measuring mechanism into the hole along the inner wall of the steel casing until the bottom of the force measuring mechanism and the bottom of the steel cage are located at the same horizontal plane, and the depth measuring mechanism, the control mechanism and the power supply connected to the control mechanism are located on the ground;

[0011] Step 2, turn on the power switch, the entire tamping and compacting device starts to work, pour concrete into the steel cage, the pressure sensor senses the force of the surrounding concrete in real time and feeds back to the force value display, if the force monitored by the force value display is greater than the pore pressure value requirement of the depth, the tamping mechanism is not started, the driving wheel is driven to rotate, the tamping mechanism and the force measuring mechanism are pulled upward through the depth acquisition line, the counter measures the depth in real time and feeds back to the depth display, and the depth value displayed on the depth display decreases at a uniform speed;

[0012] Step 3, until the applied force monitored by the force value display is reduced to the requirement of being consistent with the pore pressure value at this depth, the tamping mechanism and the force measuring mechanism are stopped from being pulled upward, and the control mechanism starts the tamping mechanism to tamp the surrounding concrete. When the applied force monitored is greater than the pore pressure value requirement at this depth, the concrete is poured densely, the tamping mechanism is closed, the driving wheel continues to rotate, and the tamping mechanism and the force measuring mechanism are pulled upward through the depth acquisition line;

[0013] Step 4: Repeat the above steps until the concrete pouring is completed, turn off the power switch, and recycle the tamping and compacting device.

[0014] In the above technical solution, the tamping mechanism is installed in a shell, the force measuring mechanism is installed at the bottom of the shell, and the tamping rod of the tamping mechanism can pass through the shell to tamp the concrete in the reinforcement cage of the cast-in-place pile.

[0015] In the above technical solution, the tamping mechanism also includes a diamond-shaped telescopic frame and a piston, a rocker arm, a camshaft and a crankshaft arranged in a piston cylinder. The tamping rod, diamond-shaped telescopic frame, piston, rocker arm and camshaft are hinged in sequence, the piston cylinder is fixedly arranged, the camshaft and the crankshaft are connected in transmission, the crankshaft passes through the piston cylinder to connect to the motor, the motor is connected to the control mechanism through a tamping control line, the control mechanism drives the crankshaft to move by controlling the motor, and finally drives the tamping rod to achieve reciprocating motion, and the speed of the reciprocating motion of the tamping rod is achieved by adjusting the rotation rate of the motor.

[0016] In the above technical solution, a protective shell is externally covered on the diamond-shaped telescopic frame, the protective shell is slidably connected to the piston cylinder, the protective shell is fixedly connected to the end of the tamping rod, and the protective shell moves with the tamping rod.

[0017] In the above technical solution, the diamond-shaped telescopic frame includes four diamond-shaped connecting rods, each diamond-shaped connecting rod forms four hinge points through the connecting rod, there is a common hinge point between two adjacent diamond-shaped connecting rods, and the four diamond-shaped connecting rods form three common hinge points and two free hinge points located on the same diagonal line. The free hinge point at the head end is hinged to the tamping rod, the free hinge point at the end is hinged to the piston, and the common hinge point at the second end is hinged to the piston cylinder.

[0018] In the above technical solution, the motor is mounted on the tamping mechanism base via the motor base, and the end of the piston cylinder is mounted on the tamping mechanism base, so that the tamping mechanism is mounted as a whole on the tamping mechanism base.

[0019] In the above technical solution, angle irons are installed on both sides of the end of the piston cylinder, and the angle irons are installed on the base of the tamping mechanism through bolts.

[0020] In the above technical solution, the tamping mechanism base is installed on the inner wall of the shell so that the entire tamping mechanism is arranged inside the shell.

[0021] In the above technical solution, the control mechanism includes a depth display, a force value display and a control housing. The depth display is installed on the control housing. The depth display is connected to a counter and is used to monitor the measured depth of the tamping mechanism and the force measuring mechanism. The force value display is installed on the housing. The force value display is connected to a pressure sensor and is used to monitor the force value measured by the pressure sensor.

[0022] The advantages and beneficial effects of the present invention are:

[0023] The present invention adopts intelligent control of the control mechanism, which can measure the depth of the tamping mechanism and the force measuring mechanism and the compaction state of the concrete poured outside the steel cage at the depth in real time. According to the relationship between the force measured on the force measuring mechanism and the pore pressure value at the depth, the control mechanism adjusts the switch state of the tamping mechanism to tamp or not tamp the concrete at the location to make the pouring dense. At the same time, the depth measuring mechanism can drive the force measuring mechanism and the tamping mechanism to lift upward. The present invention can not only detect whether the concrete pouring outside the steel cage is dense, but also further process the concrete pouring when it is not dense, thereby ensuring the pile quality of the pile body concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention.

[0025] Figure 2 It is a schematic diagram of the tamping mechanism of the present invention.

[0026] Figure 3 It is a partial schematic diagram of the tamping mechanism of the present invention.

[0027] Figure 4 It is a schematic diagram of the depth measurement mechanism of the present invention.

[0028] Figure 5 This is an application scenario diagram of the device of the present invention.

[0029] Among them, 1: shell, 2, tamping mechanism, 2.1: tamping rod, 2.2: diamond telescopic frame, 2.21: diamond connecting rod, 2.22: common hinge point, 2.23: free hinge point, 2.3: piston, 2.4: camshaft, 2.5: crankshaft, 2.6: piston cylinder, 2.7: motor, 2.8: protective shell, 2.9: motor base, 2.10: tamping mechanism base, 2.11: rocker arm, 3, force measuring mechanism, 4: depth measuring mechanism, 4.1: counter, 4.2: rotating wheel, 4.3: rotating wheel base, 5: control mechanism, 6: depth collection line, 7: depth transmission line, 8: tamping control line, 9: detection collection line, 10: power supply, 11: ground, 12: steel casing, 13: steel cage, 14: power line. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with specific embodiments.

[0031] like Figure 1-Figure 5As shown, a method for compacting concrete outside a cast-in-place pile reinforcement cage is implemented by a tamping and compacting device, the tamping and compacting device comprising a shell 1, a tamping mechanism 2, a force measuring mechanism 3, a depth measuring mechanism 4 and a control mechanism 5, the tamping mechanism 2 is installed in the shell 1, the detection mechanism is installed on the outer bottom surface of the shell 1, the depth measuring mechanism 4 is connected to the tamping mechanism 2 and the force measuring mechanism 3 through a depth acquisition line 6, the control mechanism 5 is respectively connected to the tamping mechanism 2, the detection mechanism and the depth measuring mechanism 4, and the control mechanism is connected to a power supply 10 through a power line.

[0032] During operation, the tamping mechanism 2 and the force measuring mechanism 3 are placed in the borehole along the inner wall of the steel casing 12 , the steel cage 13 is located in the middle of the steel casing 12 , and the depth measuring mechanism 4 , the control mechanism 5 and the power supply 10 are located on the ground 11 . The depth measuring mechanism 4 is used to measure the depth of the ramming mechanism 2 and the force measuring mechanism 3 descending to the outside of the steel cage 13, and to feed back to the control system in real time, and to pull the ramming mechanism 2 and the force measuring mechanism 3 up through the depth acquisition line 6; the force measuring mechanism 3 senses the force of the surrounding concrete at the descending depth in real time, and feeds back to the control mechanism 5 in real time, reflecting the density of the concrete at that location according to the magnitude of the force; compares the force with the pore pressure value at this depth, and when the force and the pore pressure value at this depth meet the consistency requirement (a threshold is set, that is, until the force is equal to the pore pressure value at that location plus or minus the threshold), the control mechanism 5 starts the ramming mechanism 2 to ram the concrete in the steel cage 13 at that depth until the force is greater than the pore pressure value requirement at that depth (a threshold is set, that is, until the force is greater than the pore pressure value at that location plus the threshold).

[0033] The control mechanism 5 includes a depth display, a force value display and a control shell. The depth display is installed on the control shell. The depth display is connected to the depth measuring mechanism 4 and is used to display the distance moved by the depth acquisition line 6 measured by the depth measuring mechanism 4, that is, to measure the depth of the tamping mechanism 2 and the force measuring mechanism 3. The force value display is installed on the shell. The force value display is connected to the force measuring mechanism and is used to display the force value measured by the force measuring mechanism. Three red and green indicator lights are also provided on the control shell to display the states of the tamping mechanism 2, the force measuring mechanism 3 and the depth measuring mechanism 4. When the tamping mechanism 2 is in a closed state, the value of the force value display is a normal value (the concrete is densely poured at this depth), and the value of the depth display decreases at a uniform speed, the three indicator lights are all green. When the tamping mechanism 2 is in an open state, the value of the force value display is an abnormal value (the concrete is not densely poured at this depth), and the value of the depth display remains basically unchanged, the three indicator lights are all red, that is, green indicates that the concrete outside the steel cage 13 is densely poured, and red indicates that the concrete is not densely poured, and the tamping rod 2.1 is working.

[0034] like Figure 2-Figure 3As shown, the tamping mechanism 2 includes a tamping rod 2.1, a diamond-shaped telescopic frame 2.2, and a piston 2.3, a rocker arm 2.11, a camshaft 2.4 and a crankshaft 2.5 arranged in a piston cylinder 2.6. The tamping rod 2.1, the diamond-shaped telescopic frame 2.2, the piston 2.3, the rocker arm 2.11 and the camshaft 2.4 are hinged in sequence, the piston cylinder 2.6 is fixedly arranged, the camshaft 2.4 and the crankshaft 2.5 are transmission connected, the crankshaft 2.5 passes through the piston cylinder 2.6 to connect to the motor 2.7, the motor 2.7 is connected to the control mechanism 5 through the tamping control line, the control mechanism 5 drives the crankshaft 2.5 to move by controlling the motor 2.7, and finally drives the tamping rod 2.1 to achieve reciprocating motion, and the control mechanism 5 controls the speed of the reciprocating motion of the tamping rod 2.1 by adjusting the rotation rate of the motor 2.7. The diamond-shaped telescopic frame 2.2 is covered with a protective shell 2.8, which is slidably connected to the piston cylinder 2.6 and fixedly connected to the end of the tamping rod 2.1 so that the protective shell 2.8 and the tamping rod 2.1 move with each other to prevent concrete from entering the protective shell 2.8. The diamond telescopic frame 2.2 includes four diamond connecting rods 2.21, each of which forms four hinge points through the connecting rods. There is a common hinge point 2.22 between two adjacent diamond connecting rods 2.21. The four diamond connecting rods 2.21 form three common hinge points 2.22 and two free hinge points 2.23 located on the same diagonal line. The free hinge point 2.23 located at the head end is hinged to the tamping rod 2.1, the free hinge point 2.23 located at the end is hinged to the piston 2.3, and the common hinge point 2.22 located at the second end is hinged to the piston cylinder 2.6, so that the reciprocating motion stroke of the tamping rod 2.1 is three times the reciprocating motion stroke of the piston 2.3.

[0035] Furthermore, the motor 2.7 is installed on the tamping mechanism base 2.10 through the motor base 2.9, and the end of the piston cylinder 2.6 is installed on the tamping mechanism base 2.10, so that the tamping mechanism 2 is installed as a whole on the tamping mechanism base 2.10, and angle irons are installed on both sides of the end of the piston cylinder 2.6. The angle irons are installed on the tamping mechanism base 2.10 through bolts. The tamping mechanism base 2.10 is installed on the inner wall of the outer shell 1, so that the entire tamping mechanism 2 is set in the outer shell 1, and a hole is opened on the side wall of the outer shell 1. The tamping rod 2.1 can pass through the outer shell 1 through the hole to tamp the concrete in the cast-in-place pile reinforcement cage 13.

[0036] like Figure 4As shown, the depth measuring mechanism 4 includes a counter 4.1 and a rotating wheel 4.2 driven to rotate, the rotating wheel 4.2 is installed on a rotating wheel base 4.3, the depth acquisition line 6 is wound around the rotating wheel 4.2, and the depth acquisition line 6 is connected to the housing 1. The counter 4.1 is arranged above the rotating wheel 4.2 to detect the distance moved by the depth acquisition line 6, that is, to measure the depth of the tamping mechanism 2 and the force measuring mechanism 3. The counter 4.1 is connected to the depth display through the depth transmission line 7 to monitor the depth of the tamping mechanism 2 and the force measuring mechanism 3.

[0037] The force measuring mechanism 3 includes a pressure sensor and a force measuring panel. The pressure sensor is arranged on the force measuring panel to sense the force exerted on the force measuring panel by the concrete in contact with the pressure sensor. The pressure sensor is connected to the force value display via the detection acquisition line 9 to monitor the force value measured by the pressure sensor.

[0038] like Figure 5 As shown, the method comprises the following steps:

[0039] Step 1, drill a hole at the target location, insert the steel casing and the steel cage 13 in turn, and then insert the tamping mechanism 2 and the force measuring mechanism 3 into the hole along the inner wall of the steel casing 12 until the bottom of the force measuring mechanism and the bottom of the steel cage 13 are in the same horizontal plane, the diamond telescopic frame 2.2 is in a compressed state, and the depth measuring mechanism 4, the control mechanism 5 and the power supply 10 are located on the ground 11.

[0040] Step 2, turn on the power switch 10, the entire tamping and compacting device starts working, pouring concrete into the steel cage 13, the pressure sensor senses the force of the surrounding concrete in real time and feeds back to the force value display. If the force monitored by the force value display is greater than the pore pressure value requirement of the depth, the tamping mechanism 2 is not started, the driving wheel 4.2 rotates, the tamping mechanism 2 and the force measuring mechanism 3 are pulled upward through the depth acquisition line 6, the counter 4.1 measures the depth in real time and feeds back to the depth display, and the depth display shows that the depth value decreases at a uniform speed.

[0041] Step 3, until the force monitored by the force value display is reduced to the requirement of consistency with the pore pressure value at this depth (at this time, the concrete at this depth is not densely poured), the rotating wheel 4.2 stops rotating, stops pulling up the tamping mechanism 2 and the force measuring mechanism 3, the control mechanism 5 starts the tamping mechanism 2, and the tamping rod 2.1 reciprocates to tamp the surrounding concrete. When the force is greater than the pore pressure value at this depth (at this time, the concrete is densely poured), the tamping mechanism 2 is closed, and the rotating wheel 4.2 is driven to continue to rotate at a uniform speed, and the tamping mechanism 2 and the force measuring mechanism 3 are pulled up through the depth collection line 6.

[0042] Step 4, repeat the above steps until the concrete pouring is completed, turn off the power supply 10 switch, and recycle the device of this embodiment.

[0043] 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.

[0044] 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.

[0045] 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 compacting concrete outside a cast-in-place pile reinforcement cage, characterized in that: The method is implemented by a tamping and compacting device, which includes a tamping mechanism, a force measuring mechanism, a depth measuring mechanism and a control mechanism. The force measuring mechanism is located at the bottom of the tamping mechanism. The depth measuring mechanism connects the tamping mechanism and the force measuring mechanism through a depth acquisition line to pull the tamping mechanism and the force measuring mechanism upward. The control mechanism connects the tamping mechanism, the detection mechanism and the depth measuring mechanism respectively. When working, the tamping mechanism and the force measuring mechanism are placed in the drill hole along the inner wall of the steel casing, and the depth measuring mechanism and the control mechanism are located on the ground. The force measuring mechanism includes a pressure sensor for sensing the force of concrete around it and feeding it back to the control mechanism; the depth measuring mechanism includes a counter and a rotating wheel driven to rotate, the depth acquisition line is wound around the rotating wheel, the counter is arranged above the rotating wheel to detect the distance moved by the depth acquisition line, that is, the depth of descent of the tamping mechanism and the force measuring mechanism, and feeds it back to the control mechanism, the tamping mechanism includes a tamping rod driven to reciprocate, when the sensed force and the pore pressure value at this depth meet the requirement of consistency, the control mechanism starts the tamping mechanism to tamping the concrete in the steel cage at this depth until the concrete at this depth is dense; The method comprises the following steps: Step 1, drilling a hole at a target location, inserting a steel casing and a steel cage in sequence, and then inserting the tamping mechanism and the force measuring mechanism into the hole along the inner wall of the steel casing until the bottom of the force measuring mechanism and the bottom of the steel cage are located at the same horizontal plane, and the depth measuring mechanism, the control mechanism and the power supply connected to the control mechanism are located on the ground; Step 2, turn on the power switch, the entire tamping and compacting device starts to work, pour concrete into the steel cage, the pressure sensor senses the force of the surrounding concrete in real time and feeds back to the force value display, if the force monitored by the force value display is greater than the pore pressure value requirement of the depth, the tamping mechanism is not started, the driving wheel is driven to rotate, the tamping mechanism and the force measuring mechanism are pulled upward through the depth acquisition line, the counter measures the depth in real time and feeds back to the depth display, and the depth value displayed on the depth display decreases at a uniform speed; Step 3, until the applied force monitored by the force value display is reduced to the requirement of being consistent with the pore pressure value at this depth, the tamping mechanism and the force measuring mechanism are stopped from being pulled upward, and the control mechanism starts the tamping mechanism to tamp the surrounding concrete. When the applied force monitored is greater than the pore pressure value requirement at this depth, the concrete is poured densely, the tamping mechanism is closed, the driving wheel continues to rotate, and the tamping mechanism and the force measuring mechanism are pulled upward through the depth acquisition line; Step 4: Repeat the above steps until the concrete pouring is completed, turn off the power switch, and recycle the tamping and compacting device.

2. The method according to claim 1, characterized in that The tamping mechanism is installed in a shell, the force measuring mechanism is installed at the bottom of the shell, and the tamping rod of the tamping mechanism can pass through the shell to tamp the concrete in the reinforcement cage of the cast-in-place pile.

3. The method according to claim 1, characterized in that The tamping mechanism also includes a diamond-shaped telescopic frame and a piston, a rocker arm, a camshaft and a crankshaft arranged in a piston cylinder. The tamping rod, diamond-shaped telescopic frame, piston, rocker arm and camshaft are hinged in sequence. The piston cylinder is fixedly arranged. The camshaft and the crankshaft are connected in transmission. The crankshaft passes through the piston cylinder to connect to the motor. The motor is connected to the control mechanism through a tamping control line. The control mechanism drives the crankshaft to move by controlling the motor, and finally drives the tamping rod to achieve reciprocating motion. The speed of the reciprocating motion of the tamping rod is achieved by adjusting the rotation rate of the motor.

4. The method according to claim 3, characterized in that: The diamond-shaped telescopic frame is covered with a protective shell, the protective shell is slidably connected to the piston cylinder, the protective shell is fixedly connected to the end of the tamping rod, and the protective shell moves with the tamping rod.

5. The method according to claim 4, characterized in that The diamond-shaped telescopic frame includes four diamond-shaped connecting rods, each of which forms four hinge points through the connecting rods, and there is a common hinge point between two adjacent diamond-shaped connecting rods. The four diamond-shaped connecting rods form three common hinge points and two free hinge points located on the same diagonal line. The free hinge point located at the head end is hinged to the tamping rod, the free hinge point located at the end is hinged to the piston, and the common hinge point located at the second end is hinged to the piston cylinder.

6. The method according to claim 3, characterized in that The motor is mounted on the tamping mechanism base via a motor base, and the end of the piston cylinder is mounted on the tamping mechanism base, so that the tamping mechanism is mounted as a whole on the tamping mechanism base.

7. The method according to claim 6, characterized in that Angle irons are installed on both sides of the end of the piston cylinder, and the angle irons are installed on the base of the tamping mechanism through bolts.

8. The method according to claim 7, characterized in that The tamping mechanism base is installed on the inner side wall of the shell so that the entire tamping mechanism is arranged in the shell.

9. The method according to claim 1, characterized in that: The control mechanism includes a depth display, a force value display and a control housing. The depth display is installed on the control housing. The depth display is connected to a counter and is used to monitor the measured depths of the tamping mechanism and the force measuring mechanism. The force value display is installed on the housing. The force value display is connected to a pressure sensor and is used to monitor the force value measured by the pressure sensor.

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