Porous mixed grouting device capable of quickly blocking high-permeability water

Abstract

The utility model provides a porous mixed grouting device capable of quickly plugging high-permeability water, which comprises a connecting main pipe, a cement grout pump station and a plurality of chemical grout pump stations, and the cement grout pump station is communicated with the connecting main pipe by arranging a cement grout grouting pipe. The chemical grout pump stations are communicated with the connecting main pipe through chemical grout inlet pipes, the number of the chemical grout inlet pipes corresponds to that of the chemical grout pump stations in a one-to-one mode, valves are independently arranged on the cement grout injection pipe and each chemical grout inlet pipe respectively, and the lower portion of the connecting main pipe is communicated with a grout mixing main pipe. A stirring mechanism is arranged in the connecting main pipe and the slurry mixing main pipe, the lower end of the slurry mixing main pipe is communicated with a plurality of slurry jetting thin pipes, the cement slurry pump station and the chemical slurry pump stations are arranged, valves are independently arranged, the mixing proportion of multiple kinds of slurry is effectively and accurately controlled, and the material cost and the plugging effect are optimized; and rapid curing and efficient plugging are realized.

Description

Technical Field

[0001] The utility model relates to the field of tunnel engineering, in particular to a porous mixed grouting device for quickly blocking highly permeable water. Background Art

[0002] In underground projects such as deep and long tunnels, the problem of highly permeable water is a major challenge. Especially in high-pressure and water-rich areas, such as karst areas, water gushing and mud bursting are often encountered, which seriously affect the progress and safety of the project. The existing technologies mainly include traditional cement slurry grouting, chemical slurry grouting and other methods. These methods have problems such as low efficiency, long reaction time and high cost when dealing with large-flow, high-pressure water gushing. Traditional cement slurry grouting technology often fails to seal under the erosion of high-flow water because the slurry solidifies too slowly. Although chemical slurry reacts quickly, its material cost and environmental risks are high under complex geological conditions, which limits its scope of application. In addition, traditional grouting devices usually have a single slurry inlet pipe, which makes it difficult to achieve precise mixing of multiple slurries, resulting in unstable sealing effect. This deficiency is particularly prominent in high-permeability and high-water-pressure environments. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a porous mixed grouting device for quickly blocking highly permeable water, which can solve the problems of easy blocking failure and high cost of traditional single grouting technology.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A porous mixing grouting device for quickly blocking highly permeable water comprises a connecting main pipe, a cement slurry pumping station and several chemical slurry pumping stations. The cement slurry pumping station is connected to the connecting main pipe by setting a cement slurry grouting pipe, and the chemical slurry pumping station is connected to the connecting main pipe by setting a chemical slurry inlet pipe. The number of the chemical slurry inlet pipes corresponds one to one to the chemical slurry pumping stations. Valves are separately provided on the cement slurry grouting pipe and each of the chemical slurry inlet pipes. The lower part of the connecting main pipe is connected to a slurry mixing main pipe. A stirring mechanism is provided in the connecting main pipe and the slurry mixing main pipe. The lower end of the slurry mixing main pipe is connected to several grouting tubes.

[0006] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions, or use these further technical solutions in combination:

[0007] The outside of the slurry mixing main pipe is connected with a membrane bag, the membrane bag is sealed at the top and bottom, and a water filling pipe is inserted into one side of the membrane bag.

[0008] The stirring mechanism includes a connecting rod and a spiral fan blade, one end of the connecting rod is connected to the bottom of the slurry mixing main pipe, and the other end of the connecting rod is located outside the connecting main pipe. The spiral fan blade is fixed to the lower part of the connecting rod and is located inside the slurry mixing main pipe.

[0009] A connecting plate is fixed to the circumferential side of the lower end of the connecting main pipe and the circumferential side of the upper end of the slurry mixing main pipe respectively, and the two connecting plates are fixedly connected by locknuts.

[0010] The diameter of the connecting main pipe is greater than the diameter of the slurry mixing main pipe.

[0011] The cross section of the connecting rod is T-shaped.

[0012] Compared with the existing technology, the utility model effectively and accurately controls the mixing ratio of multiple slurries by setting up a cement slurry pump station and several chemical slurry pump stations and setting valves separately for each of them, optimizes material cost and sealing effect, and achieves rapid solidification and efficient sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent elements with the same or similar functions. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as limiting the present invention.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0016] The utility model provides a porous mixing grouting device for quickly blocking highly permeable water, comprising a connecting main pipe 3, a cement slurry pumping station 1 and a plurality of chemical slurry pumping stations 2. The cement slurry pumping station 1 is connected to the connecting main pipe 3 by arranging a cement slurry grouting pipe 4, and the chemical slurry pumping station 2 is connected to the connecting main pipe 3 by arranging a chemical slurry inlet pipe 5. The number of chemical slurry inlet pipes 5 corresponds to that of the chemical slurry pumping stations 2. Valves 6 are respectively arranged on the cement slurry grouting pipe 4 and each chemical slurry inlet pipe 5. The lower part of the connecting main pipe 3 is connected to a slurry mixing main pipe 7. A stirring mechanism is arranged in the connecting main pipe 3 and the slurry mixing main pipe 7. The lower end of the slurry mixing main pipe 7 is connected to a plurality of grouting capillaries 8.

[0017] The grouting pressure is set by setting a cement slurry pumping station and several chemical slurry pumping stations 2, so that the mixed slurry is injected into the high-pressure water-rich rock formation through the grouting tube 8 to achieve water blocking; the flow rate and proportion of the cement slurry are controlled by setting the cement slurry pumping station 1 and its valve 6, so as to achieve the base liquid content in the mixed slurry; the flow rate and proportion of the chemical slurry are controlled by setting the chemical slurry pumping station 2 and its valve 6, so as to achieve precise mixing of different chemical slurries.

[0018] All the slurries are preliminarily mixed in the connecting main pipe 3 and finally mixed in the slurry mixing main pipe 7.

[0019] like Figure 1 As shown, in this embodiment, five chemical slurry pumping stations 2 are set up. Correspondingly, one side of each chemical liquid pumping station 2 is connected to a chemical slurry inlet pipe 5. During actual construction, the number of chemical slurry pumping stations 2 can be calculated and set according to actual needs.

[0020] The outside of the slurry mixing main pipe 7 is connected to a membrane bag 9 , which is sealed at the top and bottom, and a water filling pipe 14 is inserted into one side of the membrane bag 9 .

[0021] In this embodiment, the upper and lower ends of the membrane bag 9 are tightly tied to the outside of the slurry mixing main pipe 7 with cable ties. The water filling pipe 14 is used to fill water into the membrane bag 9 before grouting. After the membrane bag 9 is filled with water, it expands into a cylinder and seals the drill hole, so that the mixed slurry ejected from the grouting tube 8 does not overflow.

[0022] The stirring mechanism includes a connecting rod 10 and a spiral fan blade 11. One end of the connecting rod 10 is connected to the bottom of the slurry mixing main pipe 7, and the other end of the connecting rod 10 is located outside the connecting main pipe 3. The spiral fan blade 11 is fixed to the lower part of the connecting rod 10 and the spiral fan blade 11 is located inside the slurry mixing main pipe 7.

[0023] like Figure 1 As shown, the connecting rod 10 is located in the middle of the connecting main pipe 3 , and the connecting main pipe 3 and the slurry mixing main pipe 7 are coaxially arranged. In this embodiment, the spiral blades 11 are welded to the connecting rod 10 .

[0024] In this embodiment, the spiral fan blade 11 can be a spiral blade.

[0025] A connecting plate 12 is fixed to the circumference of the lower end of the connecting main pipe 3 and the circumference of the upper end of the slurry mixing main pipe 7 , respectively. The two connecting plates 12 are fixedly connected by locknuts 13 .

[0026] In this embodiment, the connecting plate 12 is an annular fixing plate.

[0027] The diameter of the connecting main pipe 3 is larger than the diameter of the slurry mixing main pipe 7 .

[0028] The cross section of the connecting rod 10 is T-shaped. Manual rotation of the connecting rod 10 drives the spiral blades 11 to rotate, thereby stirring the mixed slurry.

[0029] The construction steps of the utility model of a porous mixed grouting device for quickly blocking high-permeability water are as follows:

[0030] Installation of grouting pump station: According to the specific conditions of the construction site, install cement slurry pump station 1 and chemical slurry pump station 2, and set appropriate grouting pressure and flow parameters respectively.

[0031] Layout of the pipeline system: Use cement slurry grouting pipe 4 and chemical slurry inlet pipe 5 to connect cement slurry grouting pipe 1 and chemical slurry pump station 2 to connecting main pipe 3 respectively to ensure the stability and sealing of all pipelines.

[0032] Arrangement of grouting pipe: drill a hole at the grouting position in advance, and insert the slurry mixing main pipe 7, membrane bag 9 and grouting capillary pipe 8 into the drill hole.

[0033] Application of the membrane bag: Before slurry injection, water is injected into the membrane bag 9 through the water filling pipe 14. After the membrane bag 9 is filled with water, it expands into a cylinder to achieve the sealing of the membrane bag.

[0034] Preparation of slurry: According to the specific project requirements, adjust the ratio of cement slurry to chemical slurry, control the flow of base liquid through valve 6 and accurately control the amount of chemical slurry.

[0035] Slurry mixing: After the cement slurry and chemical slurry are preliminarily mixed in the connecting pipe 3, they enter the slurry mixing pipe 7. Manually rotate the connecting rod 10 to drive the spiral fan blades 11 to rotate, stirring the mixed slurry to achieve sufficient mixing of the slurry.

[0036] High-pressure grouting: The mixed slurry is injected into the rock cracks through the grouting pipe 8.

[0037] Verification and adjustment

[0038] Effect inspection: After completing the initial grouting, check the sealing effect and adjust the grouting parameters or repeat the grouting steps if necessary.

[0039] Parameter adjustment: According to the actual plugging effect and geological feedback, adjust the slurry mixing ratio or grouting pressure to ensure the final plugging quality and effect

[0040] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the porous mixed grouting device of the present invention for quickly blocking highly permeable water, and can produce the positive effects described in the present invention.

[0041] It should be noted that the terms "including" and "having" in the specification and claims of the present invention and the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," "right," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the description of this utility model. They do not indicate or imply that the mechanisms or components referred to must have, be constructed, or operate in a specific orientation and, therefore, should not be construed as limitations on this utility model. The terms "first" and "second" are used solely for brevity of description and do not indicate or imply relative importance.

[0043] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and effect variations to the disclosed embodiments by studying the drawings, the disclosure, and the appended claims. Furthermore, in the claims and the specification, words such as "comprising" and "including" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications made based on the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. A porous mixed grouting device for quickly blocking high-permeability water, characterized in that: The invention comprises a connecting main pipe (3), a cement slurry pumping station (1) and a plurality of chemical slurry pumping stations (2), wherein the cement slurry pumping station (1) and the connecting main pipe (3) are connected by arranging a cement slurry grouting pipe (4), and the chemical slurry pumping station (2) and the connecting main pipe (3) are connected by arranging a chemical slurry inlet pipe (5), the number of the chemical slurry inlet pipes (5) corresponds to the number of the chemical slurry pumping stations (2), the cement slurry grouting pipe (4) and each of the chemical slurry inlet pipes (5) are respectively provided with a valve (6), the lower part of the connecting main pipe (3) is connected to a slurry mixing main pipe (7), a stirring mechanism is provided in the connecting main pipe (3) and the slurry mixing main pipe (7), and the lower end of the slurry mixing main pipe (7) is connected to a plurality of slurry injection pipes (8).

2. A porous mixed grouting device for rapidly blocking highly permeable water according to claim 1, characterized in that: The outside of the slurry mixing main pipe (7) is connected to a membrane bag (9), the membrane bag (9) is sealed at the top and bottom, and a water filling pipe (14) is inserted into one side of the membrane bag (9).

3. A porous mixed grouting device for rapidly blocking highly permeable water according to claim 1, characterized in that: The stirring mechanism comprises a connecting rod (10) and a spiral fan blade (11), one end of the connecting rod (10) is connected to the bottom of the slurry mixing main pipe (7), the other end of the connecting rod (10) is located outside the connecting main pipe (3), and the spiral fan blade (11) is fixed to the lower part of the connecting rod (10) and is located inside the slurry mixing main pipe (7).

4. A porous mixed grouting device for rapidly blocking highly permeable water according to claim 1, characterized in that: A connecting plate (12) is fixed to the circumferential side of the lower end of the connecting main pipe (3) and the circumferential side of the upper end of the slurry mixing main pipe (7), respectively. The two connecting plates (12) are fixedly connected by locknuts (13).

5. The porous mixed grouting device for rapidly blocking high-permeability water according to claim 1, characterized in that: The diameter of the connecting main pipe (3) is greater than the diameter of the slurry mixing main pipe (7).

6. A porous mixed grouting device for rapidly blocking highly permeable water according to claim 3, characterized in that: The cross section of the connecting rod (10) is T-shaped.

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