Karst cave supporting frame with grouting function

Abstract

The invention relates to the technical field of supporting equipment, in particular to a karst cave supporting frame with a grouting function, which comprises a main body, a plurality of mechanical arms are rotatably connected to the side wall of the main body and are arranged along the circumferential direction of the main body, and a supporting piece is detachably connected to one end, away from the main body, of each mechanical arm; a drilling part is rotationally connected to the bottom of the body and is in transmission connection with a first power mechanism, and the mechanical arm is in transmission connection with a second power mechanism. The purpose of supporting the inner wall of the karst cave can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of supporting equipment, in particular to a karst cave supporting frame with a grouting function. Background Art

[0002] With the vigorous development of foundation engineering construction, pile foundations are widely used in the engineering field, especially in high-rise building engineering and bridge engineering. In real engineering, the underground geological conditions often determine the bearing capacity limit and normal use limit of pile foundations. Karst caves are underground spaces formed by karst action in soluble rocks. The formation of karst caves is the result of long-term dissolution of groundwater in limestone areas. Karst caves are a very common geological condition, which are widely present in underground engineering construction, especially in test pile foundation construction. To a certain extent, they affect the progress of construction and pose a great threat to operational safety and construction safety. In the process of pile foundation design, such a situation often occurs: karst caves appear at the location of the pile foundation, and the position of the pile foundation cannot be changed. At this time, the karst cave needs to be supported to ensure the stability of the karst cave during construction. Due to the secrecy and invisibility of the karst cave, the support treatment of the karst cave is extremely difficult, but some pile foundation projects have to pass through the karst cave, so the support treatment of the karst cave has also become a hot research issue in engineering. Based on this, a karst cave support frame with grouting function has positive significance for solving the problem of karst caves encountered during pile foundation construction, which has troubled many engineers. Summary of the invention

[0003] The purpose of the present invention is to provide a karst cave support frame with a grouting function to solve the above-mentioned problem and achieve the purpose of supporting the inner wall of the karst cave.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: a karst cave support frame with grouting function, comprising a main body, a plurality of mechanical arms rotatably connected to the side wall of the main body, the plurality of mechanical arms are arranged circumferentially along the main body, the mechanical arms are detachably connected to a support member at one end away from the main body, a grouting assembly is provided inside the main body, a drilling part is rotatably connected to the bottom of the main body, the drilling part is transmission-connected to a first power mechanism, and the mechanical arms are transmission-connected to a second power mechanism.

[0005] Preferably, the robotic arm comprises several connecting rod sections, and the connecting rod sections are rotationally connected in sequence through a hinge shaft. The connecting rod close to the main body is rotationally connected to the side wall of the main body, and the end of the connecting rod away from the main body is fixed with a robotic claw, the robotic claw is detachably connected to the support member, and the hinge shaft is transmission-connected to the second power mechanism.

[0006] Preferably, the support member comprises a steel column, which is a columnar structure and has a middle diameter smaller than two end diameters.

[0007] Preferably, the main body is provided with a plurality of grooves, the grooves are arranged along the axis of the main body, the grooves are arranged at equal intervals along the axial direction of the main body, and the opposite side walls of the grooves are rotatably connected to the connecting rod close to the main body.

[0008] Preferably, the spraying assembly includes a slurry reservoir, which is fixedly connected to the inner wall of the main body. The slurry reservoir is connected to a plurality of slurry delivery pipes, which pass through the side wall of the main body. The slurry delivery pipes are tied to the robotic arm by soft ropes, and the liquid outlet end of the slurry delivery pipe corresponds to the position of the robotic claw.

[0009] Preferably, the drilling portion comprises a drill bit, the drill bit is rotatably connected to the bottom of the main body, and the drill bit is transmission-connected to the first power mechanism.

[0010] Preferably, the first power mechanism comprises a first motor, and the first motor is drivingly connected to the drill bit.

[0011] Preferably, the second power mechanism includes a plurality of second motors, the output shafts of the second motors are fixedly connected to the hinge shaft, and the side walls of the second motors are fixedly connected to the side walls of the connecting rod.

[0012] The present invention has the following technical effects: by controlling the movement of the mechanical arm, the support member is placed at the designated position, the support member is used to support the cave, and the support angle of the support member can be adjusted by changing the direction of the mechanical arm as needed to adapt to different inner walls of the cave and enhance the firmness of the support. The spraying assembly is used to spray reinforce the designated position as an auxiliary reinforcement method to improve the effect of the support member in supporting the cave; the equipment overcomes the secrecy and invisibility of the cave, and supports the cave in advance as the main support and the auxiliary support of spraying reinforcement, thereby ensuring the stability of the cave when the pile foundation construction passes through the cave. In addition, after the support task of the equipment is completed, the main body and the mechanical arm can be recovered and used for the next cave support task, which is in line with the principle of sustainable use of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the slurry storage device and the power mechanism of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the mechanical arm and the spraying pipe of the present invention;

[0017] Figure 4 This is a schematic diagram of the steel column structure of the present invention;

[0018] Figure 5 It is a schematic diagram of the structure of the slurry storage device and the slurry delivery pipeline of the present invention;

[0019] Figure 6 This is a schematic diagram of the structure of the present invention in a non-working state;

[0020] Among them, 1. main body; 2. mechanical arm; 3. spraying pipe; 4. mechanical claw; 5. steel column; 6. drill bit; 7. groove; 11. first motor; 12. slurry delivery pipeline; 13. slurry storage tank; 21. soft rope; 22. hinge shaft; 23. second motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Reference Figure 1-6The present embodiment provides a karst cave support frame with grouting function, including a main body 1, a plurality of mechanical arms 2 are rotatably connected to the side wall of the main body 1, the plurality of mechanical arms 2 are arranged along the circumference of the main body 1, the end of the mechanical arm 2 away from the main body 1 is detachably connected to a support, a grouting assembly is arranged inside the main body 1, a drilling part is rotatably connected to the bottom of the main body 1, the drilling part is transmission-connected to a first power mechanism, and the mechanical arm 2 is transmission-connected to a second power mechanism. The support is placed at a designated position by controlling the movement of the mechanical arm 2, and the karst cave is supported by the support. The support angle of the support can be adjusted by changing the direction of the mechanical arm 2 as needed to adapt to different karst cave inner walls and enhance the firmness of the support. The grouting assembly is used to spray reinforce the designated position as an auxiliary reinforcement method to improve the effect of the support supporting the karst cave. The equipment overcomes the secrecy and invisibility of the karst cave, and supports the karst cave in advance with support as the main support and grouting reinforcement as the auxiliary support, thereby ensuring the stability of the karst cave when the pile foundation construction passes through the karst cave. In addition, after the support task of the device is completed, the main body 1 and the mechanical arm 2 can be recovered and used for the next cave support task, which is in line with the principle of sustainable use of resources.

[0024] Further optimization scheme, the mechanical arm 2 includes several sections of connecting rods, and the several sections of connecting rods are rotatably connected in turn through the hinge shaft 22. The connecting rod close to the main body 1 is rotatably connected to the side wall of the main body 1, and the end of the connecting rod away from the main body 1 is fixed with a mechanical claw 4, and the mechanical claw 4 is detachably connected to the support member. The hinge shaft 22 is connected to the second power mechanism in a transmission manner. Since the several sections of connecting rods are rotatably connected in turn through the hinge shaft 22, the connecting rods can rotate relative to each other, which is convenient for adjusting the angle of the mechanical arm 2. At the hinge of the connecting rod, the hinge shaft 22 is rotatably connected to one of the connecting rods and fixedly connected to the other connecting rod. The second power mechanism provides power for the rotation of the hinge shaft 22.

[0025] In a further optimized solution, the support member includes a steel column 5, which is a columnar structure with a diameter in the middle smaller than the diameters at both ends. To facilitate bearing pressure, a steel structure with a rectangular or square cross-section can also be selected.

[0026] In a further optimized solution, the main body 1 is provided with a plurality of grooves 7, which are arranged along the axis of the main body 1, and are arranged at equal intervals along the axial direction of the main body 1, and the opposite side walls of the grooves 7 are rotatably connected to the connecting rod close to the main body 1. The grooves 7 are used to accommodate the robotic arm 2, so as to facilitate the placement of the entire device into the cave or the recovery of the device.

[0027] A further optimized solution is that the spraying assembly includes a slurry storage tank 13, which is fixedly connected to the inner wall of the main body 1. The slurry storage tank 13 is connected to a plurality of slurry delivery pipes 12. The slurry delivery pipes 12 pass through the side wall of the main body 1. The slurry delivery pipes 12 are tied to the robotic arm 2 by soft ropes 21, and the liquid outlet end of the slurry delivery pipes 12 corresponds to the position of the robotic claw 4.

[0028] According to a further optimized solution, the drilling part includes a drill bit 6, which is rotatably connected to the bottom of the main body 1, and the drill bit 6 is transmission-connected to the first power mechanism.

[0029] According to a further optimization scheme, the first power mechanism includes a first motor 11, which is transmission-connected to the drill bit 6. The output shaft of the first motor 11 can be directly fixed to the drill bit 6, or can be transmission-connected to the drill bit 6 through a reducer.

[0030] In a further optimized solution, the second power mechanism includes a plurality of second motors 23, the output shafts of the second motors 23 are fixedly connected to the hinge shaft 22, and the side walls of the second motors 23 are fixedly connected to the side walls of the connecting rod. The second motors 23 may be stepper motors with high precision and fast response.

[0031] The working process of this embodiment is as follows: before the whole equipment is lowered into the cave, a number of mechanical arms 2 are first folded up and placed in a similar groove 7. The number of mechanical arms 2 can be selected to be eight. The steel column 5 is clamped by the mechanical claw 4 and is ready for placement; the slurry storage 13 is filled with a predetermined amount of slurry, and is debugged to be connected to the slurry delivery pipe 12 through the slurry delivery pipe 3, and is ready for slurry spraying; when the equipment is lowered, the first motor 11 in the main body 1 provides power for the drill bit 6 to dig in the soil layer and send the equipment to the location of the cave; after the equipment reaches the location of the cave, the second motor 23 provides power for the mechanical arm 2 The power is used through the rotatable connection between the robot arm 2 and the groove 7 and the robot arm 2 itself to slowly open it. After the robot arm 2 slowly sends the steel column 5 clamped on it to the predetermined placement position, the robot claw 4 is released, and the steel column 5 plays a supporting role to support the cave; at the same time, the slurry storage device 13 pumps slurry to the spraying pipe 3 through the slurry delivery pipe 12, and the robot arm 2 slowly moves to the designated spraying position. The spraying pipe 3 sprays slurry at the spraying position. After the slurry solidifies, it plays an auxiliary supporting role to help the steel column maintain the stability of the cave. The end of the robot claw 4 can also be connected to the steel column 5 by magnetic attraction.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A cave support frame with grouting function, characterized in that: The invention comprises a main body (1), a side wall of the main body (1) is rotatably connected to a plurality of mechanical arms (2), the plurality of mechanical arms (2) are arranged along the circumference of the main body (1), one end of the mechanical arm (2) away from the main body (1) is detachably connected to a support member, a spraying assembly is arranged inside the main body (1), a drilling part is rotatably connected to the bottom of the main body (1), the drilling part is transmission-connected to a first power mechanism, and the mechanical arm (2) is transmission-connected to a second power mechanism.

2. The cave support frame with grouting function according to claim 1, characterized in that: The robotic arm (2) comprises a plurality of connecting rod sections, which are rotatably connected in sequence via an articulated shaft (22). The connecting rod close to the main body (1) is rotatably connected to the side wall of the main body (1), and a robotic gripper (4) is fixedly connected to the end of the connecting rod away from the main body (1). The robotic gripper (4) is detachably connected to the support member, and the articulated shaft (22) is transmission-connected to the second power mechanism.

3. The cave support frame with grouting function according to claim 2, characterized in that: The support member comprises a steel column (5), the steel column (5) is a columnar structure and the diameter of the middle portion is smaller than the diameters of the two ends.

4. The cave support frame with grouting function according to claim 2, characterized in that: The main body (1) is provided with a plurality of grooves (7), the grooves (7) are arranged along the axis of the main body (1), the grooves (7) are arranged at equal intervals along the axial direction of the main body (1), and the opposite side walls of the grooves (7) are rotatably connected to the connecting rod close to the main body (1).

5. The cave support frame with grouting function according to claim 2, characterized in that: The spraying assembly comprises a slurry storage device (13), the slurry storage device (13) is fixedly connected to the inner wall of the main body (1), the slurry storage device (13) is connected to a plurality of slurry delivery pipes (12), the slurry delivery pipes (12) pass through the side wall of the main body (1), the slurry delivery pipes (12) are tied to the mechanical arm (2) by means of a soft rope (21), and the liquid outlet end of the slurry delivery pipe (12) corresponds to the position of the mechanical gripper (4).

6. The cave support frame with grouting function according to claim 1, characterized in that: The drilling part comprises a drill bit (6), the drill bit (6) is rotatably connected to the bottom of the main body (1), and the drill bit (6) is transmission-connected to the first power mechanism.

7. The cave support frame with grouting function according to claim 6, characterized in that: The first power mechanism comprises a first motor (11), and the first motor (11) is transmission-connected to the drill bit (6).

8. The cave support frame with grouting function according to claim 2, characterized in that: The second power mechanism comprises a plurality of second motors (23), the output shafts of the second motors (23) are fixedly connected to the hinge shaft (22), and the side walls of the second motors (23) are fixedly connected to the side walls of the connecting rods.

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