Ground surface grouting device

Abstract

The utility model provides an earth surface grouting device, which relates to the technical field of stratum grouting equipment and particularly comprises a grouting main body, a slurry conveying component, a pressurizing part and a slurry blocking component, the grouting body comprises a grouting cylinder, and grouting holes are formed in the cylinder wall of the grouting cylinder. A grout outlet hole of the grout conveying assembly is formed in the grouting cylinder, the grout conveying assembly comprises an expansion part, and the expansion part is located in the grouting cylinder; the pressurizing piece covers the grouting hole; the grout blocking assembly is arranged above the grouting hole and comprises a grout blocking piece and a transmission piece, one end of the grout blocking piece is hinged to the outer wall of the grouting barrel, one end of the transmission piece is connected with the grout blocking piece, and the other end of the transmission piece penetrates through the barrel wall of the grouting barrel to be connected with the outer wall of the expansion piece. The grouting main body extends into a soil layer, the slurry conveying assembly injects slurry into the grouting barrel and discharges the slurry from the grouting hole, and in the grouting process, the expansion piece pushes the transmission piece and the slurry blocking piece to rotate and expand to block the slurry from flowing upwards, so that the situation that the reinforcement effect of a soil body in the deep layer of the earth surface is not obvious due to the fact that the slurry extends into a hole channel in the soil layer along equipment and emerges outwards is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stratum grouting equipment, in particular to a surface grouting device. Background Art

[0002] In the field of geotechnical engineering, poor geology often exists deep on the surface. If poor geology causes major accidents during underground engineering construction, it often leads to casualties and huge economic losses. Therefore, it is particularly important to reinforce the poor geology deep on the surface in advance.

[0003] Deep surface grouting is currently a relatively convenient and economical reinforcement method. It is usually carried out by extending cylindrical or columnar equipment into the soil layer to inject grouting liquid into the soil layer for reinforcement.

[0004] However, since the slurry has difficulty in diffusing deep in the stratum, the slurry injected into the soil layer tends to bubble outward along the holes in the equipment that extend into the soil layer, resulting in an insignificant soil reinforcement effect deep on the surface. Utility Model Content

[0005] The utility model aims to provide a surface grouting device to alleviate the technical problem in the prior art that slurry easily flows outwards from the hole in the soil layer through the device, resulting in an insignificant reinforcement effect on the deep soil layer on the surface.

[0006] The utility model provides a surface grouting device, comprising: a grouting body, a grouting assembly, a pressure-boosting member and a grouting-blocking member; the grouting body comprises a grouting barrel, and a grouting hole is arranged on the barrel wall of the grouting barrel; the grouting outlet hole of the grouting assembly is arranged in the grouting barrel, and the grouting assembly comprises an expansion member, and the expansion member is located in the grouting barrel; the pressure-boosting member cover is arranged on the grouting hole; the grouting-blocking member is arranged above the grouting hole, and the grouting-blocking member comprises a grouting-blocking member and a transmission member, one end of the grouting-blocking member is hinged to the outer wall of the grouting barrel, one end of the transmission member is connected to the grouting-blocking member and the other end penetrates the barrel wall of the grouting barrel and is connected to the outer wall of the expansion member.

[0007] Furthermore, the slurry-blocking member is an annular umbrella body; the transmission member is an annular rib; one end of the annular rib abuts against the outer wall of the expansion member, and the other end is hinged to the annular umbrella body.

[0008] Furthermore, the booster is an annular booster sleeve; an installation groove is provided on the outer wall of the grouting barrel along the circumference of the grouting barrel, and the grouting hole is located in the installation groove; the annular booster sleeve is arranged in the installation groove.

[0009] Furthermore, the annular pressurizing sleeve is a rubber sleeve.

[0010] Furthermore, the slurry delivery assembly also includes a slurry delivery pipe and a slurry outlet pipe; the slurry delivery pipe extends along the barrel mouth of the grouting barrel into the grouting barrel and is connected with the expansion member; the slurry outlet hole is provided on the pipe wall of the slurry outlet pipe, and the slurry outlet pipe is connected with the expansion member.

[0011] Furthermore, the slurry delivery assembly also includes a slurry pipe connector and a grouting gun; one end of the slurry pipe connector is connected to the slurry delivery pipe, and the other end is connected to the grouting gun; the slurry outlet end of the grouting gun is connected to the expansion member.

[0012] Furthermore, there are a plurality of slurry outlet holes; the plurality of slurry outlet holes are evenly arranged along the axial direction of the slurry outlet pipe.

[0013] Furthermore, the expansion member is a rubber bag.

[0014] Furthermore, the grouting body also includes a conical plugging piece; the conical plugging piece is arranged at the bottom of the grouting cylinder, and the tip of the conical plugging piece faces downward.

[0015] Furthermore, there are multiple grouting holes, expansion parts, pressure-boosting parts and slurry-blocking assemblies; the multiple grouting holes are evenly arranged along the axial direction of the grouting cylinder; the multiple slurry-blocking assemblies, the multiple pressure-boosting parts and the multiple grouting holes are arranged in one-to-one correspondence; the multiple expansion parts and the multiple slurry-blocking assemblies are arranged in one-to-one correspondence.

[0016] Beneficial effects:

[0017] The surface grouting device provided by the utility model comprises a grouting body, a grouting assembly, a pressure-boosting member and a grouting-blocking member; the grouting body comprises a grouting barrel, and a grouting hole is arranged on the barrel wall of the grouting barrel; the grouting outlet hole of the grouting assembly is arranged in the grouting barrel, and the grouting assembly comprises an expansion member, and the expansion member is located in the grouting barrel; the pressure-boosting member cover is arranged on the grouting hole; the grouting-blocking member is arranged above the grouting hole, and the grouting-blocking member comprises a grouting-blocking member and a transmission member, one end of the grouting-blocking member is hinged to the outer wall of the grouting barrel, one end of the transmission member is connected to the grouting-blocking member and the other end penetrates the barrel wall of the grouting barrel and is connected to the outer wall of the expansion member.

[0018] The grouting body in the utility model is used to extend into the soil layer, and the grouting assembly is arranged in the grouting barrel, which is used to inject slurry into the grouting barrel and discharge the slurry to the outside of the grouting barrel through the grouting hole. During the grouting process, the slurry first passes through the expansion member, causing the expansion member to deform and expand, thereby pushing the transmission member to move outward, and the booster member covers the grouting hole. The grouting pressure must reach the expected value before the booster member can be flushed open, thereby ensuring that the grouting pressure reaches the pressure value that makes the expansion member swell, and the slurry blocking member rotates along the hinged end of the outer wall under the linkage of the transmission member. After the rotation, the slurry blocking member expands in the horizontal direction and compacts the soil on both sides at the same time. After the slurry flows out of the grouting hole, when it flows upward along the grouting barrel, the slurry blocking member can block the slurry from continuing to flow upward. After being blocked, the slurry penetrates and diffuses into the horizontal and lower soil, thereby achieving effective grouting reinforcement of the soil layer, avoiding the slurry from bubbling out of the hole along the equipment extending into the soil layer, resulting in the soil reinforcement effect in the deep layer of the surface is not obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a surface grouting device provided in an embodiment of the utility model;

[0021] Figure 2 A perspective structural diagram of a surface grouting device provided by an embodiment of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] icon:

[0024] 100 - grouting cylinder; 110 - grouting hole; 120 - conical plugging piece; 130 - bump;

[0025] 200 - slurry delivery assembly; 210 - expansion piece; 220 - slurry delivery pipe; 230 - slurry outlet pipe; 231 - slurry outlet hole; 240 - slurry pipe connector; 250 - grouting gun;

[0026] 300 - pressurized parts;

[0027] 400 - slurry blocking assembly; 410 - slurry blocking part; 420 - transmission part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0035] See also Figures 1 to 3 The surface grouting device provided in this embodiment includes a grouting body, a grouting assembly 200, a pressure booster 300 and a grouting blocking assembly 400. The grouting body includes a grouting tube 100, and a grouting hole 110 is provided on the tube wall of the grouting tube 100.

[0036] The grouting hole 231 of the grouting assembly 200 is disposed in the grouting tube 100. The grouting assembly 200 includes an expansion member 210, and the expansion member 210 is located in the grouting tube 100. The pressure increasing member 300 is covered on the grouting hole 110.

[0037] The slurry blocking assembly 400 is arranged above the grouting hole 110, and the slurry blocking assembly 400 includes a slurry blocking member 410 and a transmission member 420. One end of the slurry blocking member 410 is hinged to the outer wall of the grouting tube 100, one end of the transmission member 420 is connected to the slurry blocking member 410 and the other end penetrates the wall of the grouting tube 100 and connects to the outer wall of the expansion member 210.

[0038] Specifically, when in use, the grouting body is used to extend into the soil layer, the grouting assembly 200 is arranged in the grouting tube 100, and the slurry is injected into the grouting tube 100 through the grouting assembly 200.

[0039] During the grouting process, the slurry first passes through the expansion member 210, causing the expansion member 210 to deform and expand, thereby pushing the transmission member 420 to move outward, and the slurry blocking member 410 rotates along the hinged end with the outer wall under the linkage of the transmission member 420, and the booster member 300 covers the grouting hole 110. The booster member 300 can only be opened when the grouting pressure reaches the expected value, thereby ensuring that the grouting pressure reaches the pressure value that makes the expansion member 210 expand.

[0040] During the rotation of the grout blocking member 410, it expands in the horizontal direction and compacts the soil on both sides. After the slurry flows out of the expansion member 210, it is discharged from the grouting hole 110 to the outside of the grouting tube 100. After the slurry flows out of the grouting hole 110, when it flows upward along the grouting tube 100, the grout blocking member 410 can prevent the slurry from continuing to flow upward. After being blocked, the slurry penetrates and diffuses into the horizontal and lower soil, thereby achieving effective grouting reinforcement of the soil layer, and preventing the slurry from bubbling out along the hole of the equipment extending into the soil layer, resulting in the soil reinforcement effect deep on the surface is not obvious.

[0041] In this embodiment, the slurry blocking member 410 is an annular umbrella body, and the transmission member 420 is an annular umbrella rib, one end of which abuts against the outer wall of the expansion member 210, and the other end is hinged to the annular umbrella body.

[0042] Specifically, after one end of the annular rib in this embodiment abuts against the outer wall of the expansion member 210 , when slurry is injected into the expansion member 210 , the expansion member 210 swells under the injection of the slurry, and the outer wall of the expansion member 210 expands outward to push the transmission member 420 .

[0043] The annular umbrella body is connected to the outer wall of the grouting barrel 100 by a hinge. When the annular umbrella body is pushed by the annular ribs, the annular umbrella body unfolds outward in an umbrella shape. During the unfolding process, the umbrella body can move to both sides to compact the soil and prevent the slurry from flowing upward from the loose soil on both sides of the umbrella body.

[0044] This slurry-blocking structure expands the expansion member 210 through the pressure of the slurry during the grouting process, and then pushes the annular ribs to move to drive the annular umbrella body to expand, thereby achieving soil compaction and slurry blocking. It can be implemented without the participation of driving parts such as electric components or pneumatic devices, and has a simple structure and is very environmentally friendly.

[0045] In this embodiment, the booster 300 is an annular booster sleeve. The outer wall of the grouting tube 100 is provided with a mounting groove arranged along the circumference of the grouting tube 100, and the grouting hole 110 is located in the mounting groove. The annular booster sleeve is arranged in the mounting groove.

[0046] The annular booster sleeve covers the outer wall of the grouting tube 100 and covers the grouting hole 110. The slurry needs to have a certain pressure so that it can push open the annular booster sleeve and be discharged from the grouting hole 110 after injection. Under this hydraulic pressure, after the slurry flows into the expansion member 210, the expansion member 210 will inevitably expand, thereby avoiding the grouting pressure being too low, the expansion member 210 cannot expand, the annular umbrella body cannot expand, and the slurry is discharged from the grouting hole 110 and flows upward without obstruction.

[0047] Among them, the installation groove in this embodiment includes two protrusions 130 arranged along the circumference of the grouting tube 100, and the two protrusions 130 and the tube wall of the grouting tube 100 between the two protrusions 130 constitute the installation groove. The annular booster sleeve is arranged in the installation groove. The two protrusions 130 can form upper and lower direction limits for the annular booster sleeve to prevent the annular booster sleeve from sliding on the grouting tube 100 due to the push of the soil when the grouting tube 100 is extended into the ground.

[0048] In this embodiment, the annular pressurizing sleeve is a rubber sleeve.

[0049] The rubber sleeve itself has a certain elasticity. When installed in the installation groove, the rubber sleeve can be stretched to expand so as to be mounted outside the grouting tube 100, which is convenient for assembly. After installation, it automatically shrinks and is firmly mounted on the outer wall of the grouting tube 100. In addition, the rubber sleeve has stable chemical properties and is not easily oxidized and corroded by moisture in the soil. It has a long service life and is conducive to long-term use.

[0050] In this embodiment, the slurry delivery assembly 200 further includes a slurry delivery pipe 220 and a slurry outlet pipe 230. The slurry delivery pipe 220 extends along the tube mouth of the slurry injection tube 100 into the slurry injection tube 100 and is connected to the expansion member 210. A slurry outlet hole 231 is provided on the tube wall of the slurry outlet pipe 230, and the slurry outlet pipe 230 is connected to the expansion member 210.

[0051] One end of the slurry delivery pipe 220 is connected to the grouting equipment, which is used to input the slurry into the expansion member 210. The slurry is input into the expansion member 210 to make the expansion member 210 swell, and is input into the slurry outlet pipe 230 through the expansion member 210. The slurry is injected into the grouting tube 100 from the slurry outlet hole 231 on the slurry outlet pipe 230. The slurry accumulates in the grouting tube 100 to the grouting hole 110 and is discharged from the grouting tube 100 through the slurry outlet hole 231.

[0052] In this embodiment, the slurry delivery assembly 200 further includes a slurry pipe connector 240 and a grouting gun 250. One end of the slurry pipe connector 240 is connected to the slurry delivery pipe 220, and the other end is connected to the grouting gun 250. The slurry outlet end of the grouting gun 250 is connected to the expansion member 210.

[0053] The grouting gun 250 can inject slurry into the expansion member 210. The slurry pipe connector 240 in this embodiment is used to connect the slurry delivery pipe 220 with the grouting gun 250. The slurry in the slurry delivery pipe 220 enters the slurry outlet pipe 230 through the slurry pipe connector 240, the grouting gun 250, and the expansion member 210, and is then discharged into the grouting barrel 100 through the slurry outlet hole 231 on the slurry outlet pipe 230.

[0054] In this embodiment, there are a plurality of pulp outlet holes 231. The plurality of pulp outlet holes 231 are evenly arranged along the axial direction of the pulp outlet pipe 230.

[0055] The plurality of slurry outlet holes 231 can increase the slurry outlet speed of the slurry outlet pipe 230, thereby accelerating the grouting efficiency.

[0056] In this embodiment, the expansion member 210 is a rubber bag.

[0057] The rubber bag has good elasticity and can be expanded without excessive pressure. It is not easily broken by excessive pressure and has stable chemical properties, making it very suitable for use as the expansion member 210.

[0058] In this embodiment, the grouting body further includes a conical plugging member 120. The conical plugging member 120 is disposed at the bottom of the grouting cylinder 100, and the tip of the conical plugging member 120 faces downward.

[0059] The tip of the conical plugging member 120 is relatively small. In the structure where the tip faces downward, when the grouting tube 100 is extended into the soil, the contact area with the soil layer is relatively small, making it easy to extend into the soil.

[0060] In this embodiment, there are multiple grouting holes 110, expansion members 210, pressure-increasing members 300 and slurry-blocking assemblies 400. The multiple grouting holes 110 are evenly arranged along the axial direction of the grouting tube 100. The multiple slurry-blocking assemblies 400 and the multiple pressure-increasing members 300 are arranged one-to-one correspondingly to the multiple grouting holes 110. The multiple expansion members 210 are arranged one-to-one correspondingly to the multiple slurry-blocking assemblies 400.

[0061] Specifically, a plurality of grouting holes 110 are evenly arranged on the grouting cylinder 100 in this embodiment. To ensure that the slurry does not flow back upward along the outer wall of the grouting cylinder 100 , a slurry blocking assembly 400 is arranged above each grouting hole 110 .

[0062] Accordingly, each slurry blocking assembly 400 includes an annular umbrella body and an annular umbrella rib, and each annular umbrella rib is connected to a separate expansion member 210. The multiple expansion members 210 are interconnected to achieve the circulation of slurry.

[0063] In addition, a pressurizing member 300 is sleeved outside each grouting hole 110 to ensure that the grouting pressure is sufficient to expand the expansion member 210, thereby pushing the annular umbrella rib.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A surface grouting device, characterized in that: include: A grouting body, a grouting assembly (200), a pressure booster (300) and a grouting blocking assembly (400); The grouting body comprises a grouting cylinder (100), and a grouting hole (110) is provided on the cylinder wall of the grouting cylinder (100); The slurry outlet hole (231) of the slurry delivery component (200) is arranged in the grouting cylinder (100), the slurry delivery component (200) comprises an expansion member (210), and the expansion member (210) is located in the grouting cylinder (100); The pressurizing member (300) is covered on the grouting hole (110); The slurry blocking component (400) is arranged above the grouting hole (110), and the slurry blocking component (400) comprises a slurry blocking member (410) and a transmission member (420), one end of the slurry blocking member (410) is hinged to the outer wall of the grouting cylinder (100), one end of the transmission member (420) is connected to the slurry blocking member (410) and the other end penetrates the cylinder wall of the grouting cylinder (100) and is connected to the outer wall of the expansion member (210).

2. The surface grouting device according to claim 1, characterized in that: The slurry blocking member (410) is an annular umbrella body; The transmission member (420) is a ring-shaped umbrella rib; One end of the annular rib abuts against the outer wall of the expansion member (210), and the other end is hinged to the annular umbrella body.

3. The surface grouting device according to claim 1, characterized in that: The pressurizing member (300) is an annular pressurizing sleeve; An installation groove is provided on the outer wall of the grouting cylinder (100) and is arranged along the circumference of the grouting cylinder (100), and the grouting hole (110) is located in the installation groove; The annular booster sleeve is arranged in the mounting groove.

4. The surface grouting device according to claim 3, characterized in that: The annular pressurizing sleeve is a rubber sleeve.

5. The surface grouting device according to claim 1, characterized in that: The slurry delivery assembly (200) further comprises a slurry delivery pipe (220) and a slurry outlet pipe (230); The grouting pipe (220) extends along the mouth of the grouting cylinder (100) into the grouting cylinder (100) and is connected to the expansion member (210); The slurry outlet hole (231) is provided on the pipe wall of the slurry outlet pipe (230), and the slurry outlet pipe (230) is connected to the expansion member (210).

6. The surface grouting device according to claim 5, characterized in that: The slurry delivery assembly (200) further comprises a slurry pipe connector (240) and a grouting gun (250); One end of the slurry pipe connector (240) is connected to the slurry delivery pipe (220), and the other end is connected to the grouting gun (250); The grout outlet end of the grouting gun (250) is connected to the expansion member (210).

7. The surface grouting device according to claim 5, characterized in that: There are multiple pulp outlet holes (231); The plurality of slurry outlet holes (231) are evenly arranged along the axial direction of the slurry outlet pipe (230).

8. The surface grouting device according to claim 5, characterized in that: The expansion member (210) is a rubber bag.

9. The surface grouting device according to claim 1, characterized in that: The grouting body also includes a conical plugging piece (120); The conical plugging member (120) is arranged at the bottom of the grouting cylinder (100), and the tip of the conical plugging member (120) faces downward.

10. The surface grouting device according to claim 1, characterized in that: There are a plurality of the grouting holes (110), the expansion members (210), the pressure increasing members (300) and the slurry blocking components (400); The plurality of grouting holes (110) are evenly arranged along the axial direction of the grouting cylinder (100); The plurality of slurry blocking components (400), the plurality of pressure boosting components (300) and the plurality of grouting holes (110) are arranged in one-to-one correspondence; The plurality of expansion members (210) and the plurality of slurry blocking components (400) are arranged in one-to-one correspondence.

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