Drilling and vibrating integrated vibrating grouting rod

Abstract

The utility model relates to the technical field of saturated sand vibration grouting, in particular to a drilling and vibration integrated vibration grouting rod which comprises a drill bit, a vibration part, a flexible damping device, a groove-shaped connecting part, a connecting tail part and a rigid-flexible conversion device. The vibration part, the flexible damping device, the groove-shaped connecting part and the connecting tail part are sequentially in butt joint to form a grouting rod body, a containing cavity is formed in the grouting rod body, the drill bit is arranged at the front end of the vibration part, the outer side of the flexible damping device is movably sleeved with the rigid-flexible conversion device, and the rigid-flexible conversion device is arranged in the containing cavity. The rigid-flexible conversion device can do reciprocating motion in a strip-shaped notch in the groove-shaped connecting part; the rigid-flexible conversion device is pushed downwards to be in a rigid state during drilling, the rigid-flexible conversion device is pulled upwards to be in a flexible state during grouting, so that rigid-flexible conversion is achieved, vibration is concentrated on the vibration part during grouting, slurry diffusion is facilitated, and the flexible damping device plays a damping role to prevent vibration from being transmitted upwards.

Description

Technical Field

[0001] The utility model relates to the technical field of saturated sand vibration grouting, in particular to a drilling-vibration integrated vibration grouting rod. Background Art

[0002] Saturated sand layer is a common weak and unfavorable stratum, which is commonly seen in underground integrated pipe corridors, subways, tunnels and other projects. It has a loose structure, poor self-stabilization ability, and is prone to sudden deformation, which can cause accidents. The reinforcement and anti-seepage treatment of this stratum has always been a hot topic in engineering research. After the saturated sand layer is affected by vibration, the pore water pressure in the soil suddenly rises, reducing the stress between soil particles to zero, and the soil is almost in a liquid state. Although the grouting method has been developed in many aspects, the grouting effect is not satisfactory for sandy soil strata, and it is often difficult to inject slurry. The grouting rod commonly used in vibration grouting construction does not have a vibration function or has a poor vibration effect, and does not have the conversion between rigidity and flexibility. The patent document with patent number 201720205527.7 discloses a self-propelled anchor rod, which has a vibration function but does not have a rigid-flexible conversion function. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a drilling-vibration integrated vibration grouting rod.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a drilling-vibration integrated vibration grouting rod, comprising: a drill bit, a vibration part, a flexible shock absorbing device, a groove-type connecting part, a connecting tail and a rigid-flexible conversion device; the vibration part, the flexible shock absorbing device, the groove-type connecting part and the connecting tail are connected in sequence to form a grouting rod body, a accommodating cavity is provided in the grouting rod body, the drill bit is provided at the front end of the vibration part, the rigid-flexible conversion device is provided on the outer movable sleeve of the flexible shock absorbing device, the rigid-flexible conversion device can reciprocate in the strip-type notch on the groove-type connecting part, a grouting stop plug is provided on the connecting tail, and the connecting tail is aligned with the groove-type connecting part through the grouting stop plug When drilling, the rigid-flexible conversion device is pushed down to adjust to the rigid state, so that the flexible shock absorbing device is not subjected to force and is supported and protected by the rigid-flexible conversion device to avoid damage to the flexible shock absorbing device. At this time, the drill bit drills down to the specified position. When grouting, the rigid-flexible conversion device is pulled up to adjust to the flexible state, so that the flexible shock absorbing device is exposed. In the flexible state, the vibration is concentrated in the sand around the vibrating part. After the sand is disturbed, the effective stress between the soil particles is reduced. At this time, grouting is conducive to the diffusion of the slurry to realize vibration grouting. While vibrating the grouting, the flexible shock absorbing device plays a role of shock absorption to prevent the vibration from being transmitted upward to the grooved connection part and the connection tail, ensuring that the vibration source is placed in the sand layer.

[0005] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, the rigid-flexible conversion device includes a first conversion part, a second conversion part and a push-pull rod, and the second conversion part is connected to the first conversion part through a plurality of fixing columns;

[0006] A first groove is provided on one side of the first conversion part close to the vibration part, and a first protrusion matching the first groove is provided on one end of the flexible shock absorbing device close to the vibration part; when the push-pull rod pushes down the second conversion part until the first protrusion is inserted into the first groove, it is in a rigid state, so that the first conversion part is engaged with the first connecting part of the flexible shock absorbing device, thereby realizing drilling in a rigid state;

[0007] A second groove is provided on one side of the first conversion part close to the groove-shaped connection part, and a second protrusion matching the second groove is provided on one end of the flexible shock-absorbing device close to the groove-shaped connection part; when the push-pull rod pulls up the second conversion part until the second protrusion is inserted into the second groove, it is in a flexible state at this time, so that the first conversion part is engaged with the second connection part of the flexible shock-absorbing device, and the flexible shock-absorbing device plays a shock-absorbing role, ensuring that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove-shaped connection part, thereby completing grouting; the first protrusion and the second protrusion are staggered;

[0008] The push-pull rod is disposed in the accommodating cavity, the head end of the push-pull rod is connected to the second conversion part, and the push-pull rod can drive the second conversion part to reciprocate in the strip-shaped slot on the slot-shaped connection part. Specifically, the push-pull rod is in a rigid state when it is pushed down in the strip-shaped slot, and is in a flexible state when it is pulled up in the strip-shaped slot, so as to realize rigid-flexible conversion.

[0009] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, the second conversion part is provided with a third groove matching the second protrusion, and the third groove is arranged corresponding to the second groove. When the push-pull rod is pushed down, the first protrusion is inserted into the first groove, and the second protrusion is inserted into the third groove, so that the first conversion part is clamped with the first connecting part of the flexible shock absorbing device, and the second conversion part is clamped with the second connecting part of the flexible shock absorbing device, so as to enhance the fixing effect in the rigid state.

[0010] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, an interface is provided at the end of the push-pull rod; the interface is provided to adapt to different grouting equipment for easy connection.

[0011] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, the flexible shock absorbing device includes a first connection part, a rubber hose and a second connection part, the first connection part is sealed and connected to the second connection part through the rubber hose, the first connection part is sealed and connected to the vibration part through a thread, and the second connection part is sealed and connected to the groove connection part through a thread. The rubber hose is provided to play a role of buffering and shock absorption. When in a flexible state, it is ensured that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove connection part.

[0012] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, the drilling-vibration integrated vibration grouting rod further includes an eccentric block and a transmission shaft, the transmission shaft is arranged in the accommodating cavity along the axial direction of the grouting rod body, one end of the transmission shaft is connected to the vibration part through a bearing, the bottom of the transmission shaft is connected to the drill bit through a threaded seal, the other end of the transmission shaft is connected to the driving device, and the eccentric block is arranged at one end of the transmission shaft close to the vibration part. The drill bit and the transmission shaft are connected through a threaded seal, the driving device drives the transmission shaft to rotate, the rotation of the eccentric block causes an eccentric force to achieve a vibration effect, and the transmission shaft is connected to the vibration part through a bearing to achieve the fixation of the transmission shaft.

[0013] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, the drilling-vibration integrated vibration grouting rod also includes an annular grouting pipe, which is sleeved on the outside of the vibration part, and a grouting hose is provided in the accommodating cavity along the axial direction of the grouting rod body, and the grouting hose is connected to the annular grouting pipe. Grouting is achieved by providing an annular grouting pipe, and the grouting hose is provided in the accommodating cavity for easy storage, thereby improving neatness.

[0014] As an optional implementation scheme, in the drilling-vibration integrated vibration grouting rod provided by the utility model, a water injection pipe is provided in the accommodating chamber along the axial direction of the grouting rod body, and the water injection end of the water injection pipe is in contact with the drill bit. The water injection pipe is built into the accommodating chamber and directly passes through the drill bit. While drilling, the sand and soil in the hole are flushed away to prevent blockage and also achieve the effect of cooling, thereby improving the drilling efficiency.

[0015] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0016] 1. The drilling-vibration integrated vibration grouting rod provided by the utility model is provided with a drill bit, a vibration part, a flexible shock absorbing device, a groove-type connection part, a connection tail and a rigid-flexible conversion device; the vibration part, the flexible shock absorbing device, the groove-type connection part and the connection tail are connected in sequence to form a grouting rod body, a accommodating cavity is provided in the grouting rod body, the front end of the vibration part is provided with the drill bit, the outer movable sleeve of the flexible shock absorbing device is provided with the rigid-flexible conversion device, and the rigid-flexible conversion device can reciprocate in the strip-type notch on the groove-type connection part to complete the rigid-flexible conversion; the rigid-flexible conversion device is pushed down when drilling. It is adjusted to a rigid state so that the flexible shock absorbing device is not subjected to force and is supported and protected by the rigid-flexible conversion device to avoid damage to the flexible shock absorbing device. At this time, the drill bit drills downward to the specified position; during grouting, the rigid-flexible conversion device is pulled up and adjusted to a flexible state so that the flexible shock absorbing device is exposed. In the flexible state, the vibration is concentrated in the sand around the vibrating part. After the sand is disturbed, the effective stress between the soil particles is reduced. At this time, grouting is conducive to the diffusion of the slurry to achieve vibration grouting. While vibrating the grouting, the flexible shock absorbing device plays a shock absorbing role to prevent the vibration from being transmitted upward to the grooved connection part and the connection tail, ensuring that the vibration source is placed in the sand layer.

[0017] 2. The drilling-vibration integrated vibration grouting rod provided by the utility model is provided with a rigid-flexible conversion device, which includes a first conversion part, a second conversion part and a push-pull rod. A first groove is provided on the side of the first conversion part close to the vibration part, and a first protrusion matching the first groove is provided on one end of the flexible shock-absorbing device close to the vibration part. When the push-pull rod pushes the second conversion part down until the first protrusion is inserted into the first groove, it is in a rigid state, so that the first conversion part is clamped with the first connecting part of the flexible shock-absorbing device, thereby realizing drilling in a rigid state; a second groove is provided on the side of the first conversion part close to the groove-shaped connecting part, and a first protrusion is provided on one end of the flexible shock-absorbing device close to the groove-shaped connecting part. The second protrusion matches the second groove. When the push-pull rod pulls up the second conversion part and the second protrusion is inserted into the second groove, it is in a flexible state at this time, so that the first conversion part is clamped with the second connecting part of the flexible shock-absorbing device. The flexible shock-absorbing device plays a shock-absorbing role, ensuring that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove-shaped connecting part, thereby completing grouting; the push-pull rod is arranged in the accommodating cavity, and the head end of the push-pull rod is connected to the second conversion part. The push-pull rod can drive the second conversion part to reciprocate in the strip-shaped groove on the groove-shaped connecting part. Specifically, the push-pull rod is in a rigid state when it is pushed down in the strip-shaped groove, and is in a flexible state when it is pulled up in the strip-shaped groove, so as to realize rigid-flexible conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of the drilling-vibration integrated vibration grouting rod provided by the utility model;

[0020] Figure 2 A structural schematic diagram of the rigid state of the drilling-vibration integrated vibration grouting rod provided by the utility model;

[0021] Figure 3 A structural schematic diagram of the flexible state of the drilling-vibration integrated vibration grouting rod provided by the utility model;

[0022] Figure 4 A schematic diagram of the side structure of the drilling-vibration integrated vibration grouting rod provided by the utility model;

[0023] Figure 5 A partial structural schematic diagram of the drilling-vibration integrated vibration grouting rod provided by the utility model;

[0024] Figure 6 This is a structural schematic diagram of the drilling-vibration integrated vibration grouting rod provided by the utility model from another perspective.

[0025] [Description of Reference Numerals]

[0026] 1. Drill bit;

[0027] 2. Vibration part;

[0028] 3. Flexible shock absorbing device; 31. First connecting portion; 311. First protrusion; 32. Rubber hose; 33. Second connecting portion; 331. Second protrusion;

[0029] 4. Groove-type connection portion; 41. Strip-type notch;

[0030] 5. Connecting tail; 51. Stop plug; 52. Gas pipe;

[0031] 6. Rigid-flexible conversion device; 61. first conversion part; 611. first groove; 612. second groove; 62. fixing column; 63. second conversion part; 631. third groove; 64. push-pull rod; 641. interface;

[0032] 7. Eccentric block; 8. Transmission shaft; 9. Annular grouting pipe; 10. Grouting hose; 11. Water injection pipe; 12. Grouting rod body; 13. Accommodating chamber. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention, such as first, second, up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The utility model provides a drilling and vibration integrated vibration grouting rod, such as Figure 1-Figure 6As shown, it includes a drill bit 1, a vibration part 2, a flexible shock absorbing device 3, a grooved connection part 4, a connection tail 5 and a rigid-flexible conversion device 6; the vibration part 2, the flexible shock absorbing device 3, the grooved connection part 4 and the connection tail 5 are sequentially connected to form a grouting rod body 12, and a accommodating cavity 13 is provided in the grouting rod body 12. Specifically, the vibration part 2, the grooved connection part 4, the connection tail 5 and the flexible shock absorbing device 3 form a complete hollow structure, the front end of the vibration part 2 is provided with the drill bit 1, and the outer side of the flexible shock absorbing device 3 is movable The movable sleeve is provided with the rigid-flexible conversion device 6, and the rigid-flexible conversion device 6 can reciprocate in the strip-shaped notch 41 on the groove-shaped connection part 4 to complete the rigid-flexible conversion. A slurry stop plug 51 is provided on the connection tail 5, and the connection tail 5 is connected with the groove-shaped connection part 4 through the slurry stop plug 51; specifically, the front end of the vibration part 2 is provided with a drill bit 1, and the rear end is connected with the groove-shaped connection part 4 through a flexible shock absorbing device 3, the flexible shock absorbing device 3 is connected to the groove-shaped connection part 4 through a threaded seal, and the groove-shaped connection part 4 is connected to the connection tail 5. The grooved connection part 4 is connected to the connection tail part 5 by threaded sealing; when drilling, the rigid-flexible conversion device 6 is pushed down to adjust to the rigid state, and the transmission shaft 8 provides the drill bit 1 with rotational power to drill, so that the flexible shock absorbing device 3 is not subjected to force and is supported and protected by the rigid-flexible conversion device 6 to avoid the flexible shock absorbing device 3 from being damaged. At this time, the drill bit 1 drills down to the specified position; when grouting, the rigid-flexible conversion device 6 is pulled up to adjust to the flexible state, so that the flexible shock absorbing device 3 is exposed to the outside, and the grouting machine used to transport the slurry to the vibrating grouting rod through the grouting hose 10. The slurry flows out from the annular grouting pipe 9 connected to the grouting hose 10 at the lower end of the vibration grouting rod. The air pump provides pressure through the air pipe 52 to expand the grouting plug 51 so that grouting proceeds smoothly. In the flexible state, the vibration is concentrated in the sand around the vibration part 2. After the sand is disturbed, the effective stress between the soil particles is reduced. At this time, grouting is conducive to the diffusion of the slurry to achieve vibration grouting. While vibrating the grouting, the flexible shock absorbing device 3 plays a shock absorbing role to prevent the vibration from being transmitted upward to the grooved connecting part 4 and the connecting tail 5, ensuring that the vibration source is placed in the sand layer.

[0037] Furthermore, in the drilling-vibration integrated vibration grouting rod provided by the utility model, if Figure 5 and Figure 6 As shown, the rigid-flexible conversion device 6 includes a first conversion part 61, a second conversion part 63 and a push-pull rod 64, and the second conversion part 63 is connected to the first conversion part 61 through a plurality of fixing columns 62;

[0038] A first groove 611 is provided on one side of the first conversion part 61 close to the vibration part 2, and a first protrusion 311 matching the first groove 611 is provided on one end of the flexible damping device 3 close to the vibration part 2; when the push-pull rod 64 pushes down the second conversion part 63 until the first protrusion 311 is inserted into the first groove 611, it is in a rigid state, so that the first conversion part 61 is engaged with the first connecting part 31 of the flexible damping device 3, thereby realizing drilling in a rigid state;

[0039] A second groove 612 is provided on one side of the first conversion part 61 close to the groove-type connection part 4, and a second protrusion 331 matching the second groove 612 is provided on one end of the flexible shock-absorbing device 3 close to the groove-type connection part 4; when the push-pull rod 64 pulls up the second conversion part 63 until the second protrusion 331 is inserted into the second groove 612, it is in a flexible state at this time, so that the first conversion part 61 is engaged with the second connection part 33 of the flexible shock-absorbing device 3, and the flexible shock-absorbing device 3 plays a shock-absorbing role, ensuring that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove-type connection part 4, thereby completing the grouting; preferably, the first protrusion 311 and the second protrusion 331 are staggered;

[0040] The push-pull rod 64 is disposed in the accommodating cavity 13, and the head end of the push-pull rod 64 is connected to the second conversion part 63. The push-pull rod 64 can drive the second conversion part 63 to reciprocate in the strip-shaped slot 41 on the slot-shaped connecting part 4. Specifically, the push-pull rod 64 is in a rigid state when it is pushed down in the strip-shaped slot 41, and is in a flexible state when it is pulled up in the strip-shaped slot, so as to realize rigid-flexible conversion.

[0041] like Figure 5 As shown, the second conversion part 63 is provided with a third groove 631 matching the second protrusion 331, and the third groove 631 is arranged corresponding to the second groove 612. When the push-pull rod 64 is pushed down, the first protrusion 311 is inserted into the first groove 611, and the second protrusion 331 is inserted into the third groove 631, so that the first conversion part 61 is engaged with the first connection part 31 of the flexible damping device 3, and the second conversion part 63 is engaged with the second connection part 33 of the flexible damping device 3, so as to enhance the fixing effect in the rigid state.

[0042] Further, such as Figure 4 As shown, in the drilling-vibration integrated vibration grouting rod provided by the utility model, an interface 641 is provided at the end of the push-pull rod 64; the interface 641 is provided to adapt to different grouting equipment for easy connection.

[0043] like Figure 5 and Figure 6In the drilling-vibration integrated vibrating grouting rod provided by the utility model, the flexible shock absorbing device 3 includes a first connecting part 31, a rubber hose 32 and a second connecting part 33. The first connecting part 31 is sealed and connected to the second connecting part 33 through the rubber hose 32. The first connecting part 31 is sealed and connected to the vibrating part 2 through a thread, and the second connecting part 33 is sealed and connected to the groove-type connecting part 4 through a thread. A first protrusion 311 is provided on the first connecting part 31, and a second protrusion 331 is provided on the second connecting part 33. Preferably, the first protrusions 311 are symmetrically provided on both sides of the first connecting part 31, the first protrusion 311 is provided on the first connecting part 31, and the second protrusion 331 is provided on the second connecting part 33. It can play the role of fixing the rigid-flexible conversion device 6 in a rigid state, and the rubber hose 32 plays the role of buffering and shock absorption. In a flexible state, it is ensured that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove-type connecting part 4.

[0044] In the drilling and vibration integrated vibrating grouting rod provided by the utility model, Figure 2 and Figure 3 As shown, the drilling-vibration integrated vibration grouting rod also includes an eccentric block 7 and a transmission shaft 8. The transmission shaft 8 is provided in the accommodating chamber 13 along the axial direction of the grouting rod body 12. The transmission shaft 8 runs through the accommodating chamber 13. One end of the transmission shaft 8 is connected to the vibration part 2 through a bearing. The bottom of the transmission shaft 8 is connected to the drill bit 1 through a threaded seal. The other end of the transmission shaft 8 is connected to the driving device. An eccentric block 7 is provided at one end of the transmission shaft 8 close to the vibration part 2. The eccentric block 7 is powered by the rotation of the transmission shaft 8 to generate vibration. Among them, the driving device is a motor, the drill bit 1 and the transmission shaft 8 are connected through a threaded seal, the driving device drives the transmission shaft 8 to rotate, the rotation of the eccentric block 7 causes an eccentric force to achieve a vibration effect, and the transmission shaft 8 is connected to the vibration part 2 through a bearing to achieve the fixation of the transmission shaft 8.

[0045] like Figure 1 As shown, the drilling-vibration integrated vibration grouting rod also includes an annular grouting pipe 9, which is sleeved on the outside of the vibration part 2. A grouting hose 10 is provided in the accommodating chamber 13 along the axial direction of the grouting rod body 12. The grouting hose 10 is connected to the annular grouting pipe 9. The annular grouting pipe 9 is sleeved on the outside of the vibration part 2 through a thread and is connected to the internal grouting hose 10 through a hose joint. Grouting is achieved by providing the annular grouting pipe 9. The grouting hose 10 is provided in the accommodating chamber 13 for easy storage, thereby improving neatness.

[0046] In addition, a stop plug 51 is provided on the connection tail 5, and the connection tail 5 is connected to the groove-shaped connection part 4 through the stop plug 51. The inside of the stop plug 51 is connected with an air pipe 52, and the air pipe 52 is connected to the stop plug 51 in the vibration grouting rod by a hose joint. The air pipe 52 is arranged in the accommodating cavity 13 along the axial direction of the grouting rod body 12. The air pipe 52 is connected to the air pump, and by setting the stop plug 51 and the air pipe 52, the air pipe 52 provides pressure to make the stop plug 51 expand and grout smoothly, thereby improving the construction efficiency.

[0047] Furthermore, in the drilling-vibration integrated vibration grouting rod provided by the utility model, a water injection pipe 11 is provided in the accommodating chamber 13 along the axial direction of the grouting rod body 12, and the water injection end of the water injection pipe 11 is in contact with the drill bit 1. The water injection pipe 11 is built into the accommodating chamber 13 and directly passes through the drill bit 1. The sand and soil in the hole are flushed away while drilling to prevent blockage, and the cooling effect is also achieved, thereby improving the drilling efficiency.

[0048] Furthermore, the utility model also provides a method for using the drilling-vibration integrated vibration grouting rod as described above, comprising the following steps:

[0049] S1: Assemble the drilling-vibration integrated vibration grouting rod with the grouting equipment, push down the rigid-flexible conversion device 6 to adjust it to the rigid mode, insert the first protrusion 311 into the first groove 611, and insert the second protrusion 331 into the third groove 631 at the same time, determine the required grouting position, turn on the motor and the water injection pipe 11 to start drilling towards the grouting position;

[0050] S2: After drilling to the designated position, close the water injection pipe 11 to stop water injection, pull up the rigid-flexible conversion device 6 to adjust it to the flexible mode, insert the second protrusion 331 into the second groove 612, start the grouting equipment and the air pump, wait until the grouting stopper 51 enters the working state, and start grouting;

[0051] S3: After the expected grouting is completed, the grouting equipment is turned off and the grouting is stopped. The corresponding setting time is waited according to the grouting material, and the air pump is turned off to wait for the slurry plug 51 to recover before pulling out the grouting rod. When the grouting depth is deep, the motor is turned on to rotate the drill bit 1 and the water injection pipe 11 is opened to slowly pull out the grouting rod.

[0052] The implementation principle of the rigid-flexible conversion device 6 and the flexible shock-absorbing device 3 in the utility model is: when the push-pull rod 64 is pushed down in the strip-shaped groove 41, it is in a rigid state, and when the push-pull rod 64 is pulled up in the strip-shaped groove, it is in a flexible state, so as to realize the rigid-flexible conversion; specifically: when the push-pull rod 64 pushes down the second conversion part 63, until the first protrusion 311 is inserted into the first groove 611, the second protrusion 331 is inserted into the third groove 631 at the same time, so that the first conversion part 61 is clamped with the first connecting part 31, and the second conversion part 63 is clamped with the second connecting part 33, at this time, it is in a rigid state, thereby realizing drilling in a rigid state; when the push-pull rod 64 pulls up the second conversion part 63, until the second protrusion 331 is inserted into the second groove 612, it is in a flexible state, so that the first conversion part 61 is clamped with the second connecting part 33, and the flexible shock-absorbing device 3 plays a role of shock absorption, ensuring that the vibration source is placed in the sand layer to prevent the vibration from being transmitted upward to the groove-shaped connecting part 4, thereby completing the vibration grouting.

[0053] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A drilling-vibration integrated vibration grouting rod, characterized in that: The invention comprises a drill bit (1), a vibration part (2), a flexible shock absorbing device (3), a groove-shaped connection part (4), a connection tail (5) and a rigid-flexible conversion device (6); the vibration part (2), the flexible shock absorbing device (3), the groove-shaped connection part (4) and the connection tail (5) are connected in sequence to form a grouting rod body (12); a receiving cavity (13) is provided in the grouting rod body (12); the drill bit (1) is provided at the front end of the vibration part (2); the rigid-flexible conversion device (6) is provided on the outer movable sleeve of the flexible shock absorbing device (3); the rigid-flexible conversion device (6) is capable of reciprocating in a strip-shaped notch (41) on the groove-shaped connection part (4); a grouting stopper (51) is provided on the connection tail (5); and the connection tail (5) is connected to the groove-shaped connection part (4) via the grouting stopper (51).

2. The drilling-vibration integrated vibration grouting rod according to claim 1, characterized in that: The rigid-flexible conversion device (6) comprises a first conversion part (61), a second conversion part (63) and a push-pull rod (64); the second conversion part (63) is connected to the first conversion part (61) via a plurality of fixing columns (62); A first groove (611) is provided on one side of the first conversion part (61) close to the vibration part (2), and a first protrusion (311) matching the first groove (611) is provided on one end of the flexible shock absorbing device (3) close to the vibration part (2); A second groove (612) is provided on one side of the first conversion portion (61) close to the groove-shaped connecting portion (4), and a second protrusion matching the second groove (612) is provided on one end of the flexible shock-absorbing device (3) close to the groove-shaped connecting portion (4); The push-pull rod (64) is disposed in the accommodating cavity (13), the head end of the push-pull rod (64) is connected to the second conversion part (63), and the push-pull rod (64) can drive the second conversion part (63) to reciprocate in the strip-shaped groove (41) on the groove-shaped connecting part (4).

3. The drilling-vibration integrated vibration grouting rod according to claim 2, characterized in that: The second conversion portion (63) is provided with a third groove (631) matching the second protrusion, and the third groove (631) is arranged corresponding to the second groove (612).

4. The drilling-vibration integrated vibration grouting rod according to claim 2, characterized in that: An interface (641) is provided at the end of the push-pull rod (64).

5. The drilling-vibration integrated vibration grouting rod according to claim 1, characterized in that: The flexible shock absorbing device (3) comprises a first connecting part (31), a rubber hose (32) and a second connecting part (33); the first connecting part (31) is sealedly connected to the second connecting part (33) via the rubber hose (32); the first connecting part (31) is sealedly connected to the vibration part (2) via a thread; and the second connecting part (33) is sealedly connected to the grooved connecting part (4) via a thread.

6. The drilling-vibration integrated vibration grouting rod according to claim 1, characterized in that: The drilling-vibration integrated vibration grouting rod further comprises an eccentric block (7) and a transmission shaft (8); the transmission shaft (8) is arranged in the accommodating cavity (13) along the axial direction of the grouting rod body (12); one end of the transmission shaft (8) is connected to the vibration part (2) via a bearing; the bottom of the transmission shaft (8) is connected to the drill bit (1) via a threaded seal; the other end of the transmission shaft (8) is connected to a driving device; and the eccentric block (7) is arranged at one end of the transmission shaft (8) close to the vibration part (2).

7. The drilling-vibration integrated vibration grouting rod according to claim 1, characterized in that: The drilling-vibration integrated vibration grouting rod also includes an annular grouting pipe (9), which is sleeved on the outside of the vibration part (2), and a grouting hose (10) is provided in the accommodating cavity (13) along the axial direction of the grouting rod body (12), and the grouting hose (10) is connected to the annular grouting pipe (9).

8. The drilling-vibration integrated vibration grouting rod according to claim 1, characterized in that: A water injection pipe (11) is provided in the accommodating cavity (13) along the axial direction of the grouting rod body (12), and the water injection end of the water injection pipe (11) is in contact with the drill bit (1).

Images