Roadway surrounding rock grouting construction method suitable for soft rock mechanical property

Abstract

The invention relates to the field of early-stage reinforcement and protection of roadway surrounding rocks, and discloses a roadway surrounding rock grouting construction method suitable for mechanical properties of soft rocks, which comprises the following steps: S1, multi-point exploration is carried out, a punching position is designed, and punching work at a specified depth is carried out; s2, grooving is conducted on the periphery of the punching position, and a stabilizing mechanism is installed; s3, an injection pipe body is installed in the hole, and one end of the injection pipe body is located in the stabilizing mechanism; s4, a disturbance mechanism is installed on the stabilizing mechanism, meanwhile, a grouting mechanism is connected in a matched mode, and grouting is prepared; s5, high-pressure grouting is conducted, and meanwhile impact disturbance is conducted on grout; s6, stabilizing the pressure, dismounting the disturbance mechanism, and carrying out the grouting of the next round; s7, grout supplementing and later monitoring and maintenance are conducted at the same time. According to the method, grout permeation and grout thickness are accelerated, the grouting efficiency is improved, meanwhile, the grouting effect is guaranteed, a grouting hole can be further sealed, follow-up overall connection is facilitated, an overall stress system is formed, and the roadway surrounding rock reinforcing, supporting and protecting effect is improved.

Description

Technical Field

[0001] The invention relates to the field of early reinforcement and protection of tunnel surrounding rocks, and in particular to a tunnel surrounding rock grouting construction method suitable for the mechanical properties of soft rocks. Background Art

[0002] Geological soft rock refers to loose, scattered, soft and weak rock layers with low strength, high porosity, poor cementation, significant influence of structural surface cutting and weathering, or containing a large amount of expansive clay minerals. This type of rock is mostly mudstone, shale, siltstone and mud sandstone, etc., with a uniaxial compressive strength of less than 25MPa. It is a naturally formed complex geological medium. During the construction process, in order to improve the bearing capacity of the tunnel surrounding rock and reduce permeability, pre-grouting is carried out in the surrounding rock to form a stable structure, thereby ensuring the overall safety and stability during subsequent engineering use and later use.

[0003] The existing grouting method generally involves drilling holes at corresponding points after exploration, and then directly using a grouting machine to grout the corresponding points, and then waiting for solidification. During this process, it is not easy for slurry to enter the smaller gaps in the rock formation, and at the same time, the requirements for the grouting machine are high, and the overall safety factor of safety protection is relatively small. Summary of the invention

[0004] In order to solve the technical problem of poor grouting effect, the present invention provides a tunnel surrounding rock grouting construction method suitable for the mechanical properties of soft rocks.

[0005] The present invention is implemented by the following technical scheme: a tunnel surrounding rock grouting construction method suitable for the mechanical properties of soft rock, comprising the following steps:

[0006] S1: Conduct exploration at multiple points, design drilling locations, and perform drilling work at a specified depth;

[0007] S2: Dig a groove around the drilling location and install a stabilizing mechanism;

[0008] S3: Install the injection tube body in the hole so that one end of the injection tube is located in the stabilizing mechanism;

[0009] S4: Install the disturbance mechanism on the stabilizing mechanism and connect the grouting mechanism to prepare for grouting;

[0010] S5: high-pressure grouting with simultaneous impact disturbance of the slurry;

[0011] S6: Stabilize the pressure, dismantle the disturbance mechanism, and carry out the next round of grouting;

[0012] S7: Conduct secondary exploration of soft rock to ensure stable internal mechanical properties;

[0013] S8: Fill the grout and carry out subsequent monitoring and maintenance.

[0014] As a further improvement of the above scheme, the distance between the holes shall not exceed 1m and the voltage stabilization time shall not be less than 0.5h.

[0015] As a further improvement of the above scheme, the stabilizing mechanism includes a packaging box located in the groove, a movable plate is slidably sleeved inside the packaging box, a movable sleeve is fixedly connected in the middle of the movable plate, a follower tube and a deepening tube are respectively connected on both sides of the movable sleeve, the deepening tube is connected to the injection tube body, and a one-way bucket is connected inside the movable sleeve.

[0016] As a further improvement of the above scheme, the injection tube body includes a connector that is threadedly sleeved with the deep-drilling tube, one side of the connector is rotatably connected to an introduction tube extending into the hole, a plurality of overflow holes are provided on the introduction tube, a plurality of embedded holes are provided on one end of the introduction tube and on the tube body of the introduction tube, a corner sleeve rotatably connected to the introduction tube is provided in the embedded hole, and a rotating plate rotatably connected to the introduction tube is slidably sleeved in the corner sleeve.

[0017] As a further improvement of the above scheme, the disturbance mechanism includes an execution box located on one side of the packaging box, an upper connecting tube is slidably sleeved on one side of the execution box, one end of the upper connecting tube is connected to an intermediate tube located in the execution box, the bottom of the intermediate tube is connected to a lower connecting tube slidably sleeved with the execution box, one end of the lower connecting tube is rotatably connected to a rotating head threadedly sleeved with the follower tube, a protective ring is fixedly sleeved on the outer side of the intermediate tube, a moving block is fixedly connected to one side of the protective ring, a rotating column is rotatably connected to the outer side of the moving block, a motor is fixedly connected inside the rotating column, the output end of the motor is transmission-connected to a transmission, the output end of the transmission is transmission-connected to a rotating cylinder rotatably connected to the execution box, a travel groove in contact with the rotating column is provided on the outer side of the rotating cylinder, a guide groove is fixedly connected inside the execution box, a spring is fixedly connected inside the guide groove, the other end of the spring is fixedly connected to a slider slidably sleeved with the guide groove, the slider is fixedly connected to the other two rotating columns, and the outer side of the protective ring is slidably sleeved with a limiting strip fixedly connected to the execution box.

[0018] As a further improvement of the above scheme, the grouting mechanism includes a mobile platform located in the cave, to which a storage tank is fixedly connected, the bottom of the storage tank is connected to a grouting pump fixedly connected to the mobile platform through a pipeline, the output end of the grouting pump is connected to a dispersion pipe, and the dispersion pipe is connected to a plurality of flexible pipes connected to the upper connecting pipe.

[0019] As a further improvement of the above solution, one end of the introduction tube is connected to the impact head, and a sliding groove for sliding of the rotating piece is provided in the corner sleeve.

[0020] As a further improvement of the above solution, an operation panel is clamped on the top of the packaging box, a displacement sensor is arranged in the packaging box, and a processor is fixedly connected to one side of the packaging box.

[0021] As a further improvement of the above solution, a plurality of mounting holes are provided at the bottom of the packaging box, a stabilizing cone connected to the packaging box is provided in the mounting holes, a plurality of expansion boards are fixedly connected to the outside of the packaging box, and a plurality of stabilizing holes are provided on the expansion boards.

[0022] As a further improvement of the above solution, an ultrasonic generator is fixedly connected inside the execution box, and installation doors are rotatably connected on all four sides of the execution box.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Grouting can be carried out stably through the injection tube body. At the same time, indirect impact and vibration can be carried out during the grouting process to accelerate the penetration of the slurry and increase the thickness of the slurry, thereby improving the grouting efficiency while ensuring the grouting effect. In conjunction with the stabilizing mechanism, the grouting hole can be further sealed to facilitate subsequent overall connection, form an overall force system, and improve the reinforcement, support and protection effect of the tunnel surrounding rock.

[0025] 2. Through the mutual cooperation between multiple devices, grouting can be carried out quickly and stably. At the same time, with the deepening of the introduction pipe and the further limitation of the corner sleeve, the force system is more stable, thereby making the overall support more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the overall structure diagram of the present invention;

[0027] Figure 2 It is a partial structural diagram of the present invention;

[0028] Figure 3 It is the local structure diagram of the disturbance mechanism;

[0029] Figure 4 It is the local structure diagram of the disturbance mechanism and the stabilization mechanism;

[0030] Figure 5 This is the structural diagram of the introduction tube;

[0031] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0032] Figure 7 This is a partial structural diagram of the introduction tube.

[0033] Description of main symbols:

[0034] 01. Moving platform; 03. Execution box; 04. Packaging box; 05. Flexible pipe; 06. Inlet pipe; 07. Dispersion pipe; 08. Grouting pump; 09. Storage tank; 12. Stabilizing cone; 13. Expansion plate; 14. Upper connecting pipe; 15. Depth pipe; 16. Connecting head; 17. Motor; 18. Moving plate; 19. Guide groove; 20. Limiting strip; 21. Intermediate pipe; 23. Moving block; 24. Rotating cylinder; 25. Travel groove; 26. Ultrasonic generator; 27. Transmission; 28. Lower connecting pipe; 29. ​​Rotating head; 30. Moving sleeve; 32. One-way bucket; 33. Follow-up pipe; 34. Operating panel; 35. Rotating column; 36. Protection ring; 38. Overflow hole; 39. Corner sleeve; 40. Embedded hole; 41. Rotating sheet. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0036] Embodiment 1:

[0037] A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties comprises the following steps:

[0038] S1: Conduct multi-point exploration, design drilling locations, and perform drilling work at a specified depth. After measurement, find out the relatively unstable locations and perform drilling to ensure maximum stability after subsequent grouting;

[0039] S2: Dig grooves around the drilling location and install a stabilizing mechanism. Digging grooves facilitates the installation of the stabilizing mechanism and ensures the subsequent work can be carried out;

[0040] S3: Install the injection tube in the hole so that one end of it is located in the stabilizing mechanism. Inserting the injection tube can facilitate grouting at multiple points inside and reduce the pressure of top grouting. After grouting is completed in the later stage, multiple tubes can be connected by reinforced concrete to form a complete force-bearing whole to ensure the safety of the whole.

[0041] S4: Install a disturbance mechanism on the stabilizing mechanism, and simultaneously connect a grouting mechanism to prepare for grouting. The disturbance mechanism disturbs the injection tube body to disperse the gas in the slurry and promote the penetration of the slurry in some gaps.

[0042] S5: High-pressure grouting, which simultaneously impacts and disturbs the slurry. High-pressure grouting ensures the force required for grouting flow;

[0043] S6: Stabilize the pressure, dismantle the disturbance mechanism, and carry out the next round of grouting. Stabilize the pressure to ensure the entry of slurry into the gaps, and at the same time relieve the internal stress to ensure the overall strength after subsequent drying;

[0044] S7: Conduct secondary exploration of soft rock to ensure stable internal mechanical properties;

[0045] S8: Fill the grout and carry out subsequent monitoring and maintenance.

[0046] The distance between holes shall not exceed 1m, and the voltage stabilization time shall not be less than 0.5h. The overall stability is ensured through the multi-hole setting.

[0047] Embodiment 2:

[0048] Combination Figure 1-Figure 4 ,

[0049] The stabilizing mechanism includes a packaging box 04 located in the groove, a moving plate 18 is slidably sleeved in the packaging box 04, a moving sleeve 30 is fixedly connected in the middle of the moving plate 18, and the two sides of the moving sleeve 30 are respectively connected to a follower tube 33 and a penetration tube 15, the penetration tube 15 is connected to the injection tube body, and a one-way bucket 32 ​​is connected in the moving sleeve 30. The packaging box 04 is installed in the prepared groove of the rock cave and fixed at the same time. The moving plate 18 limits the freedom of the moving sleeve 30 in a certain direction to ensure the stability of the moving plate 18. At the same time, the moving plate 18 is connected to the outside world through the follower tube 33 and the penetration tube 15. The penetration tube 15 extends into the drilled hole to facilitate subsequent grouting. The one-way bucket 32 ​​uses elastic material to achieve one-way flow of the slurry.

[0050] An operating panel 34 is clamped on the top of the packaging box 04, a displacement sensor is provided inside the packaging box 04, a processor is fixedly connected to one side of the packaging box 04, and the operating panel 34 facilitates operation inside the packaging box 04. The displacement sensor and the processor are both existing mechanisms. The displacement sensor monitors the displacement of the movable plate 18, which is convenient for subsequent monitoring and collection of other data.

[0051] A plurality of mounting holes are provided at the bottom of the packaging box 04, and a stabilizing cone 12 connected to the packaging box 04 is provided in the mounting hole. A plurality of expansion boards 13 are fixedly connected to the outer side of the packaging box 04, and a plurality of stabilizing holes are provided on the expansion board 13. The packaging box 04 can be better connected to the rock formation through the stabilizing cone 12, and the expansion board 13 can be connected to the expansion board 13 on other packaging boxes 04. At the same time, the expansion board 13 is connected to the rock formation through pins, etc., so that the installation of the packaging box 04 is more stable.

[0052] The implementation principle of the embodiment of the present application is as follows: before grouting, the packaging box 04 is installed, and then connected to the outside world through the follower pipe 33, and grouting is injected into the hole through the follower pipe 33, the movable sleeve 30, the one-way bucket 32 ​​and the deep pipe 15. When the grouting reaches a certain degree, the grouting is stopped, and the packaging box 04 closes the hole to complete the grouting work.

[0053] Embodiment 2:

[0054] Combination Figure 1-Figure 7 Based on Example 2, this embodiment is further improved in that:

[0055] The injection tube body includes a connector 16 threadedly sleeved with the penetration tube 15, one side of the connector 16 is rotatably connected with an introduction tube 06 extending into the hole, a plurality of overflow holes 38 are arranged on the introduction tube 06, one end of the introduction tube 06 and the tube body of the introduction tube 06 are provided with a plurality of embedded holes 40, a corner sleeve 39 rotatably connected to the introduction tube 06 is arranged in the embedded hole 40, a rotating piece 41 rotatably connected to the introduction tube 06 is slidably sleeved in the corner sleeve 39, the connector 16 facilitates the connection between the introduction tube 06 and the penetration tube 15 to ensure subsequent grouting work, the introduction tube 06 penetrates into the rock formation, and at the same time cooperates with the overflow hole 38 to carry out all-round multi-point grouting to ensure the stability of the grouting pressure at various locations, and at the same time during the grouting process, due to the pressure, the overflow hole 38 and the rotating piece 41 rotate and expand to a certain angle, the corner sleeve 39 contacts the rock formation, thereby forming a certain force angle to ensure the stability of the grouting after drying, and at the same time, in accordance with the needs of other work, the embedded hole 40 is synchronously overflowed to ensure the grouting work.

[0056] One end of the introduction tube 06 is connected to the impact head, and a sliding groove for the sliding of the rotating piece 41 is provided in the corner sleeve 39. The impact head facilitates the introduction tube 06 to enter the hole, and the sliding sleeve facilitates the movement of one end of the rotating piece 41.

[0057] The implementation principle of the embodiment of the present application is as follows: after the slurry is injected into the deep pipe 15, the slurry overflows through the connector 16, the inlet pipe 06 and the overflow hole 38, the overflow hole 38 and the rotating plate 41 rotate and expand to a certain angle, the corner sleeve 39 contacts the rock formation, and the embedded hole 40 overflows synchronously to achieve multi-point grouting.

[0058] Embodiment 3:

[0059] Combination Figure 1-Figure 7 Based on Example 3, this embodiment is further improved in that:

[0060] The disturbance mechanism includes an execution box 03 located on one side of the packaging box 04, an upper connecting tube 14 is slidably sleeved on one side of the execution box 03, one end of the upper connecting tube 14 is connected to an intermediate tube 21 located in the execution box 03, a lower connecting tube 28 slidably sleeved with the execution box 03 is connected to the bottom of the intermediate tube 21, one end of the lower connecting tube 28 is rotatably connected to a rotating head 29 threadedly sleeved with a follower tube 33, a protective ring 36 is fixedly sleeved on the outer side of the intermediate tube 21, a moving block 23 is fixedly connected on one side of the protective ring 36, a rotating column 35 is rotatably connected to the outer side of the moving block 23, and a rotating column 35 is fixedly sleeved inside the rotating column 35. The motor 17 is fixedly connected, and the output end of the motor 17 is transmission-connected to the transmission 27, and the output end of the transmission 27 is transmission-connected to the rotating cylinder 24 which is rotationally connected to the execution box 03. The outer side of the rotating cylinder 24 is provided with a travel groove 25 which contacts the rotating column 35. The execution box 03 is fixedly connected with a guide groove 19, and the guide groove 19 is fixedly connected with a spring, and the other end of the spring is fixedly connected with a slider which is slidably sleeved with the guide groove 19, and the slider is fixedly connected with the other two rotating columns 35. The outer side of the protective ring 36 is slidably sleeved with a limiting strip 20 which is fixedly connected to the execution box 03. When installing , the rotating head 29 is threadedly sleeved onto the follower tube 33, and the execution box 03 and the packaging box 04 are relatively fixed to form a stable whole, and then the slurry enters the follower tube 33 through the upper connecting tube 14, the middle tube 21, the lower connecting tube 28, and the rotating head 29, and then the subsequent grouting work is carried out. During the grouting, the motor 17 works, and then the transmission 27 drives the rotating cylinder 24 to rotate. At the same time, under the limitation of the stroke groove 25, the rotating column 35 drives the moving block 23, the protective ring 36, the middle tube 21, the lower connecting tube 28, and the rotating head 29 to move along the stroke groove 2 5 is moved, and with the elasticity of the spring, the moving trajectory of the rotating column 35 is slowly lifted, and then driven by the spring, it quickly descends along the stroke groove 25, and then slowly rises along the stroke groove 25. Driven by the rotating head 29, the follower tube 33, the moving sleeve 30, the deep tube 15, the connecting head 16, and the introduction tube 06 are periodically moved and impacted. During the impact process, the corner sleeve 39 quickly impacts the internal slurry, which increases the instantaneous pressure of the slurry, so that the slurry is better mixed and enters the gap at the same time, ensuring the grouting effect.

[0061] An ultrasonic generator 26 is fixedly connected inside the execution box 03, and installation doors are rotatably connected on all four sides of the execution box 03. The ultrasonic generator 26 can emit ultrasonic waves, and its vibration frequency is the same as that of the introduction tube 06, thereby causing the introduction tube 06 to resonate, further ensuring the injection and mixing of the slurry. The installation door facilitates the installation of internal devices.

[0062] The implementation principle of the embodiment of the present application is as follows: when working, the rotating head 29 and the follower tube 33 are installed. After use, the rotating head 29 and the follower tube 33 are separated to adapt to grouting at multiple points. After the rotating head 29 and the follower tube 33 are connected, the motor 17 works, and then drives the rotating cylinder 24 to rotate through the transmission 27. At the same time, under the limitation of the stroke groove 25, the rotating column 35 drives the moving block 23, the protective ring 36, the middle tube 21, the lower connecting tube 28, and the rotating head 29 to move along the positive stroke groove 25. At the same time, with the elasticity of the spring, the follower tube 33, the moving sleeve 30, the deep tube 15, the connecting head 16, and the introduction tube 06 are periodically moved and impacted. During the impact process, the corner sleeve 39 quickly impacts the internal slurry, so that the instantaneous pressure of the slurry becomes larger, so that the slurry is better mixed and enters the gap at the same time, ensuring the grouting effect.

[0063] Embodiment 4:

[0064] Combination Figure 1-Figure 7 Based on Example 3, this embodiment is further improved in that:

[0065] The grouting mechanism includes a mobile platform 01 located in the cave, to which a storage tank 09 is fixedly connected, and the bottom of the storage tank 09 is connected to a grouting pump 08 fixedly connected to the mobile platform 01 through a pipeline, and the output end of the grouting pump 08 is connected to a dispersion pipe 07, and the dispersion pipe 07 is connected to a plurality of flexible pipes 05 connected to the upper connecting pipe 14. Through the storage in the storage tank 09, the overall movement can be conveniently carried out to improve the overall maneuverability, and at the same time, with the expansion and conduction of the dispersion pipe 07 and the flexible pipe 05, grouting can be carried out simultaneously to improve the overall work efficiency.

[0066] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties, characterized in that: The following steps are involved: S1: Conduct multi-point exploration, design drilling locations, perform drilling work at a specified depth, and increase the drilling density in softer areas; S2: Dig a groove around the drilling location and install a stabilizing mechanism; S3: Install the injection tube body in the hole so that one end of the injection tube is located in the stabilizing mechanism; S4: Install the disturbance mechanism on the stabilizing mechanism and connect the grouting mechanism to prepare for grouting; S5: high-pressure grouting with simultaneous impact disturbance of the slurry; S6: Stabilize the pressure, dismantle the disturbance mechanism, and carry out the next round of grouting; S7: Conduct secondary exploration of soft rock to ensure stable internal mechanical properties; S8: Fill the grout and carry out subsequent monitoring and maintenance.

2. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 1, characterized in that: The distance between the holes shall not exceed 1m, the pressure stabilization time shall not be less than 0.5h, and the distance between the holes in soft rock shall not exceed 0.5m.

3. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 1, characterized in that: The stabilizing mechanism includes a packaging box located in the groove, a moving plate is slidably sleeved in the packaging box, a moving sleeve is fixedly connected in the middle of the moving plate, a follower tube and a penetration tube are respectively connected on both sides of the moving sleeve, the penetration tube is connected to the injection tube body, and a one-way bucket is connected in the moving sleeve.

4. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 3, characterized in that: The injection tube body includes a connecting head that is threadedly sleeved with the deep-insertion tube, one side of the connecting head is rotatably connected with an introduction tube extending into the hole, a plurality of overflow holes are provided on the introduction tube, one end of the introduction tube and the tube body of the introduction tube are provided with a plurality of embedded holes, a corner sleeve rotatably connected to the introduction tube is provided in the embedded hole, and a rotating plate rotatably connected to the introduction tube is slidably sleeved in the corner sleeve.

5. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 5, characterized in that: The disturbance mechanism includes an execution box located on one side of the packaging box, one side of the execution box is slidably sleeved with an upper connecting tube, one end of the upper connecting tube is connected to an intermediate tube located in the execution box, the bottom of the intermediate tube is connected to a lower connecting tube slidably sleeved with the execution box, one end of the lower connecting tube is rotatably connected to a rotating head threadedly sleeved with the follower tube, the outer side of the intermediate tube is fixedly sleeved with a protective ring, one side of the protective ring is fixedly connected with a moving block, the outer side of the moving block is rotatably connected with a rotating column, a motor is fixedly connected inside the rotating column, the output end of the motor is transmission-connected with a transmission, the output end of the transmission is transmission-connected with a rotating cylinder rotatably connected to the execution box, a travel groove in contact with the rotating column is provided on the outer side of the rotating cylinder, a guide groove is fixedly connected inside the execution box, a spring is fixedly connected inside the guide groove, the other end of the spring is fixedly connected with a slider slidably sleeved with the guide groove, the slider is fixedly connected to the other two rotating columns, and the outer side of the protective ring is slidably sleeved with a limiting strip fixedly connected to the execution box.

6. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 5, characterized in that: The grouting mechanism includes a mobile platform located in the tunnel, a storage tank is fixedly connected to the mobile platform, a grouting pump fixedly connected to the mobile platform is connected to the bottom of the storage tank through a pipeline, a dispersion pipe is connected to the output end of the grouting pump, and a plurality of flexible pipes connected to the upper connecting pipe are connected to the dispersion pipe.

7. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 6, characterized in that: One end of the introduction tube is connected to the impact head, and a sliding groove for sliding of the rotating piece is arranged in the corner sleeve.

8. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 6, characterized in that: An operation panel is clamped on the top of the packaging box, a displacement sensor is arranged inside the packaging box, and a processor is fixedly connected to one side of the packaging box.

9. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 6, characterized in that: The bottom of the packaging box is provided with a plurality of mounting holes, and a stabilizing cone connected to the packaging box is provided in the mounting holes. The outer side of the packaging box is fixedly connected with a plurality of expansion boards, and a plurality of stabilizing holes are provided on the expansion boards.

10. A tunnel surrounding rock grouting construction method suitable for soft rock mechanical properties as claimed in claim 6, characterized in that: An ultrasonic generator is fixedly connected inside the execution box, and installation doors are rotatably connected on all four sides of the execution box.

Images