Ground surface crack burdening grouting plugging system and operation method

Abstract

The invention provides an earth surface crack burdening grouting plugging system and an operation method.The earth surface crack burdening grouting plugging system comprises a cement conveying mechanism, a water glass conveying mechanism, a double-liquid grouting pipeline and a crack hole sealing mechanism, and cement and water glass are mixed through the double-liquid grouting pipeline and then conveyed to earth surface cracks for grouting plugging; the crack hole sealing mechanism comprises a spindle head and a pneumatic assembly arranged on the spindle head, the spindle head is used for paving the waterproof cloth placed in the ground crack, and the pneumatic assembly is used for spraying shooting nails to the waterproof cloth to fix the waterproof cloth. According to the scheme, a double-grouting mode is adopted in the ground surface crack burdening grouting plugging system, cement and water glass are stirred and conveyed through the conveying mechanism to conduct double-liquid mixed grouting, the conveying flow can be adjusted and controlled, the proportion can be flexibly controlled, and the fluidity of the cement is guaranteed; the crack hole sealing mechanism is used for sealing large cracks, the waterproof cloth can prevent non-solidified cement from permeating into the deep position of the earth surface from the air leakage cracks, the process can be simplified, and resource waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of surface fissure treatment, and in particular to a surface fissure batching grouting plugging system and an operating method. Background Art

[0002] When treating surface fissures developed by shallow coal mining, cement grouting is often used. However, most areas with developed surface fissures have rugged terrain and are remote, which is not conducive to the transportation of large equipment and materials. In addition to the difficulty and high cost of laying pipelines, long-distance pumping of plugging materials also requires certain fluidity and setting time due to the pumped cement slurry. Therefore, in order to meet the pumping needs, cement needs to have certain fluidity and setting time. However, at present, for different surface environments and surface fissures of different shapes and sizes, a single-liquid slurry cement is directly distributed after a unified batching ratio. Single-liquid slurry cement cannot effectively control the slurry setting time when pumped over long distances, and cannot flexibly change the cement setting time. For a large-sized air leakage fissure in the surface fissures, the unsolidified cement slurry during grouting often penetrates into the deep surface from the air leakage fissure, and cannot effectively plug the developed air leakage fissure. In addition, the requirements for the performance of plugging materials for fissures in different environments are also different, and the plugging effect of surface fissures is poor. Summary of the invention

[0003] The present invention provides a surface fissure batching grouting plugging system and an operating method, so as to solve the problem in the prior art that a single-liquid slurry cement is directly distributed after a unified batching ratio for surface fissures with different developments, resulting in an inability to effectively control the setting time, and the problem that unsolidified cement slurry often penetrates into the deep surface through air leakage cracks during grouting, resulting in an inability to effectively plug larger cracks.

[0004] In order to solve the above problems, according to one aspect of the present invention, the present invention provides a surface fissure batching grouting and plugging system, including a cement conveying mechanism, a water glass conveying mechanism, a double-liquid grouting pipeline and a fissure sealing mechanism, the cement conveying mechanism is used to stir and convey cement, the water glass conveying mechanism is used to stir and convey water glass, the cement conveying mechanism conveys cement to the double-liquid grouting pipeline with an adjustable flow rate, the water glass conveying mechanism conveys water glass to the double-liquid grouting pipeline with an adjustable flow rate, the double-liquid grouting pipeline mixes cement and water glass and then conveys them to the surface fissures for grouting and plugging, the fissure sealing mechanism includes a spindle head and a pneumatic component arranged on the spindle head, the spindle head is used to flatten the waterproof cloth placed in the surface fissure, and the pneumatic component is used to spray nails on the waterproof cloth to fix the waterproof cloth.

[0005] Furthermore, the spindle head has injection ports at two opposite ends in the horizontal direction, and the pneumatic component has two injection ends, each of which corresponds to an injection port, so as to inject nails from the injection port.

[0006] Furthermore, the crack sealing mechanism also includes a main rod, which includes a cross rod and a vertical rod. The upper end of the vertical rod is connected to the middle part of the cross rod, and the lower end of the vertical rod is connected to the spindle head.

[0007] Furthermore, the cement conveying mechanism includes a cement conveying pipeline and a cement automatic feeder, a concrete mixer, a concrete grouting pump and a concrete flow controller which are sequentially installed along the conveying direction of the cement conveying pipeline.

[0008] Furthermore, the water glass conveying mechanism includes a water glass conveying pipeline and a water glass automatic feeder, a water glass stirring tank, a water glass grouting pump and a water glass flow controller installed in sequence along the conveying direction of the water glass conveying pipeline; wherein the discharge end of the water glass conveying pipeline and the discharge end of the cement conveying pipeline are connected through a double-liquid grouting tee pipe and a double-liquid grouting pipe, so as to jointly inject the material into the double-liquid grouting pipeline.

[0009] Furthermore, the automatic cement feeder includes a dustproof shell, a material conveyor belt, a liftable rotary blade and a material receiving conveyor belt. The material conveyor belt crosses the dustproof shell. The material conveyor belt is used to convey material bags. A gap is left in the middle of the material conveyor belt inside the dustproof shell. The liftable rotary blade faces the gap of the material receiving conveyor belt. A trumpet-shaped interface is connected to the gap of the material receiving conveyor belt to receive the material leaked after the material bag is cut by the liftable rotary blade.

[0010] Furthermore, the liftable rotary blade is located above or below the gap of the material receiving conveyor belt, and the automatic cement feeder also includes a telescopic rod, the liftable rotary blade is installed at the end of the telescopic rod, and a motor for rotating the liftable rotary blade is installed at the end of the telescopic rod.

[0011] According to another aspect of the present invention, an operation method is provided, which is used for the above-mentioned surface fissure batching grouting plugging system, and the operation method comprises:

[0012] Step S1, according to the shape and size of the surface cracks developed on site, for small cracks with a maximum width of less than 10 cm, grouting holes are manually drilled;

[0013] Step S2: For large cracks with a maximum width of ≥10 cm, a waterproof cloth is placed at the bottom of the large crack, the waterproof cloth is flattened by a spindle head, and then the waterproof cloth is fixed by spraying nails through a pneumatic component to prevent cement slurry from penetrating deep into the surface;

[0014] Step S3, placing the discharge pipe of the double-liquid grouting pipeline in the grouting hole of the small crack or the large crack, and then starting the cement conveying mechanism and the water glass conveying mechanism to perform double-liquid mixed grouting, wherein, according to the environmental impact, antifreeze material or waterproof material or anti-seepage material is selectively added to the concrete mixer of the cement conveying mechanism to mix evenly with the raw materials;

[0015] Step S4, adjusting and controlling the flow ratio of cement and water glass through the concrete flow controller of the cement conveying mechanism and the water glass flow controller of the water glass conveying mechanism to control the setting time of the materials in the double-liquid grouting pipeline.

[0016] Furthermore, in step S1, the diameter of the grouting hole is 10 cm to 12 cm; in step S2, a waterproof cloth is laid at a depth of 2 m to 3 m in the large crack.

[0017] Furthermore, in step S3, when the surface environment is too cold to be conducive to cement curing, sodium chloride antifreeze material is added to enhance the frost resistance of cement; when the regional precipitation is greater than 25 mm, acrylic waterproof material is added to enhance the waterproofness of cement; when the maximum width of large cracks is greater than or equal to 20 cm, polyvinyl alcohol anti-seepage material is added to enhance the aggregation and consistency of cement.

[0018] By applying the technical solution of the present invention, a surface fissure batching grouting and plugging system is provided, which comprises a cement conveying mechanism, a water glass conveying mechanism, a double-liquid grouting pipeline and a fissure sealing mechanism. The cement conveying mechanism is used for stirring and conveying cement, and the water glass conveying mechanism is used for stirring and conveying water glass. The cement conveying mechanism conveys cement to the double-liquid grouting pipeline with an adjustable flow rate, and the water glass conveying mechanism conveys water glass to the double-liquid grouting pipeline with an adjustable flow rate. The double-liquid grouting pipeline mixes cement and water glass and then conveys them to surface fissures for grouting and plugging. The fissure sealing mechanism comprises a spindle head and a pneumatic component arranged on the spindle head. The spindle head is used for flattening a waterproof cloth placed in a surface fissure, and the pneumatic component is used for spraying nails onto the waterproof cloth to fix the waterproof cloth.

[0019] In this scheme, the surface fissure batching grouting plugging system adopts a double grouting mode, and cement and water glass are stirred and conveyed by cement conveying mechanism and water glass conveying mechanism to perform double liquid mixed grouting, thereby ensuring the fluidity of cement; and the cement conveying mechanism and water glass conveying mechanism can adjust and control the conveying flow rate, and can flexibly control the ratio of the two materials, so as to cope with different distances, different fissure sizes and cement setting time required in different environments. In this embodiment, the fissure sealing mechanism 1 can be used to seal larger fissures, and the pneumatic component 121 is used to spray nails 122 to the waterproof cloth 13 to fix it in the fissure. The waterproof cloth 13 can play an isolating role to prevent the unsolidified cement slurry from penetrating into the deep surface from the air leakage fissure during grouting, thereby failing to effectively seal the developed air leakage fissure, simplifying the work process and reducing the waste of resources. In addition, this scheme can also be provided with spindle heads of different sizes and shapes to adapt to different large fissures, increasing the application scenarios of the fissure sealing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a surface fissure grouting plugging system provided by an embodiment of the present invention is shown;

[0022] Figure 2 Shows a structural schematic diagram of an automatic cement feeder;

[0023] Figure 3 A schematic diagram of grouting of small cracks is shown;

[0024] Figure 4 A schematic diagram showing the use of a fissure sealing mechanism in a surface fissure batching grouting sealing system provided by an embodiment of the present invention is shown;

[0025] Figure 5 A schematic structural diagram of a crack sealing mechanism is shown.

[0026] The above drawings include the following reference numerals:

[0027] 1. Crack sealing mechanism; 10. Horizontal bar; 11. Vertical bar; 12. Spindle head; 121. Pneumatic component; 122. Nail; 13. Waterproof cloth; 2. Cement conveying mechanism; 21. Cement conveying pipeline; 22. Cement automatic feeder; 23. Concrete mixer; 24. Concrete grouting pump; 25. Concrete flow controller; 3. Water glass conveying mechanism; 31. Water glass conveying pipeline; 32. Water glass automatic feeder; 33. Water glass mixing tank; 34. Water glass grouting pump; 35. Water glass flow controller; 4. Double liquid grouting pipeline; 41. Double liquid grouting tee; 5. Large crack; 6. Small crack; 7. Grouting hole; 81. Dustproof shell; 82. Material conveyor belt; 821. Material bag; 83. Liftable rotating blade; 831. Motor; 84. Material receiving conveyor belt; 841. Trumpet-shaped interface. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0029] like Figure 1As shown, an embodiment of the present invention provides a surface fissure batching grouting and plugging system, including a cement conveying mechanism 2, a water glass conveying mechanism 3, a double-liquid grouting pipeline 4 and a fissure sealing mechanism 1, wherein the cement conveying mechanism 2 is used for stirring and conveying cement, and the water glass conveying mechanism 3 is used for stirring and conveying water glass. The cement conveying mechanism 2 conveys cement to the double-liquid grouting pipeline 4 with an adjustable flow rate, and the water glass conveying mechanism 3 conveys cement to the double-liquid grouting pipeline 4 with an adjustable flow rate. The double-liquid grouting pipeline 4 mixes cement and water glass and then conveys them to the surface fissures for grouting and plugging. The fissure sealing mechanism 1 includes a spindle head 12 and a pneumatic component 121 arranged on the spindle head 12, the spindle head 12 is used to flatten a waterproof cloth 13 placed in the surface fissure, and the pneumatic component 121 is used to spray nails 122 onto the waterproof cloth 13 to fix the waterproof cloth 13.

[0030] In this embodiment, the surface fissure batching grouting plugging system adopts a double grouting mode, and cement and water glass are stirred and conveyed by the cement conveying mechanism 2 and the water glass conveying mechanism 3 to perform double liquid mixed grouting, thereby ensuring the fluidity of cement; and the cement conveying mechanism 2 and the water glass conveying mechanism 3 can adjust and control the conveying flow rate, and can flexibly control the ratio of the two materials, so as to cope with different distances, different fissure sizes and cement setting time required in different environments. Moreover, in this embodiment, the fissure sealing mechanism 1 can be used to seal larger fissures, and the pneumatic component 121 is used to spray nails 122 to the waterproof cloth 13 to fix it in the fissure. The waterproof cloth 13 can play an isolating role to prevent the unsolidified cement slurry from penetrating into the deep surface through the air leakage fissure during grouting, thereby failing to effectively seal the developed air leakage fissure, simplifying the work process and reducing the waste of resources.

[0031] like Figure 5 As shown, the spindle head 12 has injection ports at two opposite ends in the horizontal direction, and the pneumatic component 121 has two injection ends, each of which corresponds to an injection port, so as to inject nails 122 from the injection ports. The spindle head 12 is provided with injection ports in the horizontal direction. This design makes the waterproof cloth 13 more uniformly fixed, enhances the blocking effect, and can also inject nails 122 in two opposite directions to fix the waterproof cloth 13 without changing the use direction, so as to better fix the waterproof cloth 13 and improve the flexibility and work efficiency of the device.

[0032] like Figure 4As shown, the crack sealing mechanism 1 also includes a main rod, which includes a cross rod 10 and a vertical rod 11. The upper end of the vertical rod 11 is connected to the middle of the cross rod 10, and the lower end of the vertical rod 11 is connected to the spindle head 12. The main rod, which is composed of the upper end of the vertical rod 11 and the middle of the cross rod 10, is T-shaped in shape, which is convenient for operators to operate during use, and the force is evenly applied, reducing the pressure of a single component, and can enhance the stability and bearing capacity of the main rod. Moreover, this structural design can operate the spindle head 12 from different directions and angles, so that the pneumatic component can spray nails 122 in different directions, which helps to improve the efficiency of sealing.

[0033] like Figure 1 As shown, the cement conveying mechanism 2 includes a cement conveying pipeline 21 and a cement automatic feeder 22, a concrete mixer 23, a concrete grouting pump 24 and a concrete flow controller 25 which are sequentially installed along the conveying direction of the cement conveying pipeline 21. The setting of the cement conveying mechanism 2 can ensure that the cement flows continuously during the entire conveying process, and ensures that the cement has a certain fluidity. The concrete mixer 23 ensures that the cement and other materials are fully mixed. The cement flow controller 25 can accurately control the outflow of the concrete, ensuring the economy and accuracy of the construction process. Through the precise control and continuous conveying of the cement conveying mechanism 2, the uniformity and quality of the concrete can be ensured, and the conveying efficiency and overall quality of the construction can be improved.

[0034] like Figure 1 As shown, the water glass conveying mechanism 3 includes a water glass conveying pipeline 31 and a water glass automatic feeder 32, a water glass stirring tank 33, a water glass grouting pump 34 and a water glass flow controller 35 which are sequentially installed along the conveying direction of the water glass conveying pipeline 31; wherein, the discharge end of the water glass conveying pipeline 31 and the discharge end of the cement conveying pipeline 21 are both connected through a double liquid grouting tee 41 and a double liquid grouting pipe, so that the materials are jointly injected into the double liquid grouting pipeline 4. The cement and water glass are stirred and conveyed through the water glass conveying mechanism 3 and the above-mentioned cement conveying mechanism 2, and the double liquid mixed grouting is carried out through the double liquid grouting tee 41 and the double liquid grouting pipeline 4, and the ratio of the two materials can be flexibly controlled to meet the setting time of cement in different scenes. Therefore, the equipment can adapt to different construction environments and requirements, has good flexibility and adaptability, and improves the grouting effect and efficiency.

[0035] like Figure 2As shown, the automatic cement feeder 22 includes a dustproof shell 81, a material conveyor belt 82, a liftable rotary blade 83 and a material receiving conveyor belt 84. The material conveyor belt 82 crosses the dustproof shell 81. The material conveyor belt 82 is used to convey material bags 821. A gap is left in the middle of the material conveyor belt 82 located in the dustproof shell 81. The liftable rotary blade 83 faces the gap of the material receiving conveyor belt 84. A trumpet-shaped interface 841 is connected to the gap of the material receiving conveyor belt 84 to receive the material leaked from the material bag 821 after being cut by the liftable rotary blade 83.

[0036] The cement automatic feeder 22 can effectively reduce the dust generated by the material during the cutting process from spreading into the environment by setting up a dustproof shell 81, protect the health of the operator and reduce environmental pollution. In addition, the material conveyor belt 82 and the liftable rotary blade 83 can be set to reduce the workload of manually cutting the material bag 821 and improve work efficiency. Since the material conveyor belt 82 crosses the entire dustproof shell 81 and is provided with a notch in the middle, this design can enable the material bag 821 to release the contents quickly after being cut, reducing the time for the material to flow from the bag into the receiving conveyor belt, and speeding up the entire process. The design of the trumpet-shaped interface 841 helps to receive materials of different shapes and sizes, so that the device can be applied to multiple different scenarios. Moreover, the material receiving conveyor belt 84 is directly located below the cutting notch, reducing the loss of materials during the transfer process. The design of the liftable rotary blade 83 allows for adaptation to material bags 821 of different sizes and shapes, increasing the versatility of the device.

[0037] like Figure 2 As shown, the liftable rotary blade 83 is located above or below the gap of the material receiving conveyor belt 84, and the cement automatic feeder 22 also includes a telescopic rod, and the liftable rotary blade 83 is installed at the end of the telescopic rod, and the end of the telescopic rod is installed with a motor 831 for rotating the liftable rotary blade 83. In this solution, the use of the telescopic rod allows the liftable rotary blade 83 to be adjusted at different heights to adapt to material bags 821 of different heights, accurately control the position where the liftable rotary blade 83 contacts the material bag 821, ensure the accuracy of the cutting position, improve the efficiency of material release, and increase the flexibility and adaptability of the equipment.

[0038] The embodiment of the present invention also includes an operation method, which includes:

[0039] Step S1, according to the shape and size of the surface cracks developed on site, for small cracks 6 with a maximum width of less than 10 cm, grouting holes 7 are manually drilled;

[0040] Step S2: For large fissures 5 with a maximum width of ≥10 cm, a waterproof cloth 13 is placed at the bottom of the large fissure 5, the waterproof cloth 13 is leveled by the spindle head 12, and then the waterproof cloth 13 is fixed by the pneumatic component 121 ejecting nails 122 to prevent cement slurry from penetrating deep into the ground surface;

[0041] Step S3, placing the discharge pipe of the double-liquid grouting pipeline 4 in the grouting hole 7 of the small fissure 6 or the large fissure 5, and then starting the cement conveying mechanism 2 and the water glass conveying mechanism 3 to perform double-liquid mixed grouting, wherein, according to the environmental influence, antifreeze material or waterproof material or anti-seepage material is selectively added to the concrete mixer 23 of the cement conveying mechanism 2 to mix evenly with the raw materials;

[0042] Step S4, adjusting and controlling the flow ratio of cement and water glass through the concrete flow controller 25 of the cement conveying mechanism 2 and the water glass flow controller 35 of the water glass conveying mechanism 3 to control the setting time of the materials in the double liquid grouting pipeline 4.

[0043] In this operation method, different treatment methods can be adopted according to the size of the cracks, which is highly targeted; by laying a waterproof cloth 13 in a large crack and fixing it with nails 122, cement slurry is prevented from penetrating deep into the surface, which can prevent the waste of mud and prevent the poor sealing effect due to mud penetration, thereby enhancing construction safety. This method can also selectively add different materials (antifreeze, waterproof or anti-seepage materials) to mix with raw materials according to environmental influences to adapt to a variety of harsh environments. The method also mentions that the flow ratio of cement and water glass can be adjusted by a flow controller to control the required setting time. The rapid solidification of mud can be achieved through the double-liquid mixed grouting technology, reducing the time investment.

[0044] In step S1, the diameter of the grouting hole 7 is 10 cm to 12 cm; in step S2, the waterproof cloth 13 is laid flat at a depth of 2 m to 3 m in the large crack 5. The setting of such construction parameters can make the waterproof cloth 13 close to the root of the crack, ensuring that the grouting material can fully fill the crack. At the same time, the depth setting of the waterproof cloth 13 effectively prevents the disordered penetration of the material and improves the plugging efficiency and effect.

[0045] Furthermore, in step S3, when the surface environment is too cold to be conducive to cement curing, sodium chloride antifreeze material is added to enhance the frost resistance of cement. When the regional precipitation is greater than 25 mm, acrylic waterproof material is added to enhance the waterproofness of cement. When the maximum width of the large fissure 5 is greater than or equal to 20 cm, polyvinyl alcohol anti-seepage material is added to enhance the aggregation and consistency of cement. In this method, different targeted materials can be selected to ensure the effectiveness of plugging according to different weather conditions and the degree of cracking of the fissure, so that the surface fissure batching grouting plugging system and operation method are not only suitable for conventional environments, but also can show excellent construction performance under extreme weather and geological conditions, greatly broadening its scope of application.

[0046] Preferably, the material in the material bag 821 of the cement automatic feeder is sulphoaluminate cement ash and industrial solid waste fly ash, and the material in the material bag 821 of the water glass automatic feeder is water glass. Adding industrial solid waste fly ash can change the workability and pumpability of cement slurry, and can also reduce the amount of cement used, save costs, and is different from traditional cement-based plugging materials; using sulphoaluminate cement ash as the main bonding component has a faster coagulation speed, stronger stability and micro-expansion characteristics compared to silicate cement. At the same time, adding water glass liquid and using a double-liquid grouting mode on site can solve the problem that single-liquid cement cannot effectively control the coagulation of slurry during long-distance pumping.

[0047] The surface fissure grouting plugging system and operation method provided by the present application can effectively adjust the setting time of the grouting material by accurately controlling the ratio of cement and water glass, and adapt to the construction requirements under different environmental conditions. The coordinated use of the spindle head 12 and the pneumatic component of the fissure sealing mechanism can quickly and accurately lay and fix the waterproof cloth 13 in the large fissure 5, prevent the disordered penetration of the grouting material, and improve the plugging efficiency and effect. In addition, the automatic feeding and stirring device in the system reduces manual operation, reduces construction costs, and improves construction safety.

[0048] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0051] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A surface fissure grouting plugging system, characterized in that: The invention comprises a cement conveying mechanism (2), a water glass conveying mechanism (3), a double liquid grouting pipeline (4) and a fissure sealing mechanism (1), wherein the cement conveying mechanism (2) is used for stirring and conveying cement, the water glass conveying mechanism (3) is used for stirring and conveying water glass, the cement conveying mechanism (2) conveys cement to the double liquid grouting pipeline (4) with an adjustable flow rate, the water glass conveying mechanism (3) conveys cement to the double liquid grouting pipeline (4) with an adjustable flow rate, the double liquid grouting pipeline (4) mixes cement and water glass and conveys them to the surface fissures for grouting and sealing, the fissure sealing mechanism (1) comprises a spindle head (12) and a pneumatic component (121) arranged on the spindle head (12), the spindle head (12) is used for leveling a waterproof cloth (13) placed in the surface fissure, and the pneumatic component (121) is used for spraying nails (122) onto the waterproof cloth (13) to fix the waterproof cloth (13).

2. The surface fissure grouting plugging system according to claim 1 is characterized in that: The spindle head (12) has injection ports at two opposite ends in the horizontal direction, respectively. The pneumatic component (121) has two injection ends, each of which corresponds to one injection port, so as to inject nails (122) from the injection ports.

3. The surface fissure grouting plugging system according to claim 1 is characterized in that: The crack sealing mechanism (1) further comprises a main rod, wherein the main rod comprises a cross rod (10) and a vertical rod (11), wherein the upper end of the vertical rod (11) is connected to the middle part of the cross rod (10), and the lower end of the vertical rod (11) is connected to the spindle head (12).

4. The surface fissure grouting plugging system according to claim 1 is characterized in that: The cement conveying mechanism (2) comprises a cement conveying pipeline (21) and a cement automatic feeder (22), a concrete mixer (23), a concrete grouting pump (24) and a concrete flow controller (25) which are sequentially installed along the conveying direction of the cement conveying pipeline (21).

5. The surface fissure grouting plugging system according to claim 4 is characterized in that: The water glass conveying mechanism (3) comprises a water glass conveying pipeline (31) and a water glass automatic feeder (32), a water glass stirring tank (33), a water glass grouting pump (34) and a water glass flow controller (35) which are sequentially installed along the conveying direction of the water glass conveying pipeline (31); wherein the discharge end of the water glass conveying pipeline (31) and the discharge end of the cement conveying pipeline (21) are both connected to the double liquid grouting pipe through a double liquid grouting tee (41), so that the material is jointly injected into the double liquid grouting pipeline (4).

6. The surface fissure grouting plugging system according to claim 4 is characterized in that: The automatic cement feeder (22) comprises a dustproof shell (81), a material conveyor belt (82), a liftable rotary blade (83) and a material receiving conveyor belt (84). The material conveyor belt (82) crosses the dustproof shell (81). The material conveyor belt (82) is used to convey a material bag (821). A notch is left in the middle of the material conveyor belt (82) in the dustproof shell (81). The liftable rotary blade (83) faces the notch of the material receiving conveyor belt (84). A trumpet-shaped interface (841) is connected to the notch of the material receiving conveyor belt (84) to receive the material leaked from the material bag (821) after being cut by the liftable rotary blade (83).

7. The surface fissure grouting plugging system according to claim 6 is characterized in that: The liftable rotary blade (83) is located above or below the notch of the material receiving conveyor belt (84), and the automatic cement feeder (22) further comprises a telescopic rod, the liftable rotary blade (83) is mounted on the end of the telescopic rod, and a motor (831) for rotating the liftable rotary blade (83) is mounted on the end of the telescopic rod.

8. An operating method, characterized in that: The operating method is used for the surface fissure batching grouting plugging system according to any one of claims 1 to 7, and the operating method comprises: Step S1, according to the shape and size of the surface fissures developed on site, for small fissures (6) with a maximum width of less than 10 cm, grouting holes (7) are manually drilled; Step S2: For large fissures (5) with a maximum width of ≥10 cm, a waterproof cloth (13) is placed at the bottom of the large fissure (5), the waterproof cloth (13) is leveled by the spindle head (12), and then the waterproof cloth (13) is fixed by ejecting nails (122) through the pneumatic component (121) to prevent cement slurry from penetrating deep into the ground surface; Step S3, placing the discharge pipe of the dual-liquid grouting pipeline (4) in the grouting hole (7) of the small fissure (6) or the large fissure (5), then starting the cement conveying mechanism (2) and the water glass conveying mechanism (3) to perform dual-liquid mixed grouting, wherein, according to environmental influences, antifreeze material or waterproof material or anti-seepage material is selectively added to the concrete mixer (23) of the cement conveying mechanism (2) to be evenly mixed with the raw materials; Step S4, adjusting and controlling the flow ratio of cement and water glass through the concrete flow controller (25) of the cement conveying mechanism (2) and the water glass flow controller (35) of the water glass conveying mechanism (3) to control the setting time of the materials in the double liquid grouting pipeline (4).

9. The operating method according to claim 8, characterized in that: In step S1, the diameter of the grouting hole (7) is 10 cm to 12 cm; in step S2, the waterproof cloth (13) is laid flat at a depth of 2 m to 3 m in the large fissure (5).

10. The operating method according to claim 8, characterized in that: In step S3, when the surface environment is too cold to be conducive to cement curing, sodium chloride antifreeze material is added to enhance the frost resistance of cement; when the regional precipitation is greater than 25 mm, acrylic waterproof material is added to enhance the waterproofness of cement; when the maximum width of the large crack (5) is greater than or equal to 20 cm, polyvinyl alcohol anti-seepage material is added to enhance the aggregation and consistency of cement.

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