Karst cave grouting device based on novel soil-based composite material

Abstract

The utility model relates to the technical field of karst cave grouting, in particular to a karst cave grouting device based on a novel soil-based composite material, which comprises two groups of supporting bottom plates which are symmetrically distributed left and right, the front and rear ends of the interiors of the supporting bottom plates are connected with ground inserting cone rods, and a plurality of groups of supporting foot pads are uniformly distributed at the tops of the supporting bottom plates. Supporting vertical rods are fixed to the middle of the top of the supporting bottom plate, a fixed transverse rod is connected between the tops of the two sets of supporting vertical rods, a sliding groove extending in the length direction of the fixed transverse rod is formed in the fixed transverse rod, and the outer side of the fixed transverse rod is sleeved with a plurality of sets of movable rod sleeves which are connected in a sliding mode. The grouting pipes can be fixed, the phenomenon that the pipes shift and shake in the grouting process is avoided, multiple sets of grouting pipes can be fixed at the same time, grouting can be conducted on karst caves with several karst cave holes at the same time, and grout is prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of cave grouting, in particular to a cave grouting device based on a novel soil-based composite material. Background Art

[0002] Due to the development of karst, the ground is often uneven with clusters of stone buds and karst grooves; underground caves destroy the integrity of the rock mass, and changes in the karst hydrodynamic conditions will cause cracks and subsidence in the upper covering layer, which will affect the stability of the building foundation to varying degrees, causing it to be damaged or even collapsed.

[0003] At present, common treatment methods include grouting reinforcement, which uses mechanical pressure to inject chemical slurries such as cement slurry or water glass solution, soil-based composite materials, etc. into the filling soil in the cavity, so that the original loose sand and gravel particles or rock cracks are filled with slurry. After the slurry is solidified, it forms a soil structure with high strength, good permeability and stable bonding with the surrounding rock mass together with the filling material in the cavity.

[0004] However, in the actual grouting process, it was found that some caves would have several cave holes at the same time. If grouting is only carried out through one hole, the slurry will seep out from another cave hole when it is full. In addition, as the grouting liquid increases, the grouting pipe will also shake, affecting the grouting and the overall construction progress.

[0005] Therefore, it is particularly important to design a cave grouting device based on a new soil-based composite material to change the above technical defects and improve the overall practicality. Utility Model Content

[0006] The purpose of the utility model is to provide a grouting device for a karst cave based on a novel soil-based composite material to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A grouting device for a karst cave based on a novel soil-based composite material comprises two groups of support bottom plates symmetrically distributed on the left and right, the front and rear ends of the support bottom plates are connected with ground-inserted cone rods, a plurality of groups of support foot pads are evenly distributed on the top of the support bottom plates, a support vertical rod is fixed at the middle position of the top of the support bottom plates, a fixed cross bar is connected between the tops of the two groups of support vertical rods, a slide groove extending along the length direction of the fixed cross bar is provided inside the fixed cross bar, a plurality of groups of slidably connected movable rod sleeves are sleeved on the outer side of the fixed cross bar, and a plurality of movable rod sleeves extending out of the outer side of the slide groove are symmetrically connected on the back side of the movable rod sleeves. A locking screw is provided, a fixed vertical plate is installed on the front of the fixed cross bar, a slide rail is symmetrically provided on the front side of the fixed vertical plate, a slide seat is slidably connected to the outer side of the slide rail, a movable support plate is provided between two groups of the slide seats, an electric push rod is installed on the top of the front side of the fixed vertical plate, a grouting pipe is installed on the front side of the movable support plate, a grouting hose is connected to the top of the grouting pipe, a one-way valve is installed in the middle section of the grouting hose, a mixer is connected to the inside of the grouting pipe, a slurry outlet is installed at the bottom of the grouting pipe, and a liquid level sensor is installed on the outside of the grouting pipe and at the bottom.

[0009] As a preferred solution of the utility model, both front and rear ends of the top of the support base plate are fixed with internal thread seats threadedly connected to the ground-inserting cone rod, and the top of the ground-inserting cone rod is fixed with an adjustment cap.

[0010] As a preferred solution of the utility model, the internal structure size of the movable rod sleeve is adapted to the external structure size of the fixed cross bar, and an operating handle is provided on the top of the movable rod sleeve.

[0011] As a preferred solution of the utility model, the connection between the locking screw and the slide slot is a sliding connection, and one end of the locking screw extending out of the slide slot is threadedly connected to a locking nut.

[0012] As a preferred solution of the utility model, the driving end of the electric push rod is fixedly connected to the movable support plate by bolts.

[0013] As a preferred solution of the utility model, a controller is arranged on the outer side of the supporting pole on one side, wherein the controller is respectively connected to the electric push rod, the one-way valve, and the liquid level sensor through wires, and the connection method is electrical connection.

[0014] As a preferred solution of the utility model, the mixer is designed as a spiral spiral structure, and the external structure size of the mixer is compatible with the internal structure size of the grouting pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, a grouting device based on a new soil-based composite material is set up to fix the grouting pipe to avoid the phenomenon of pipe displacement and shaking during the grouting process, and multiple groups of grouting pipes can be fixed at the same time. For a cave with several grout holes, grouting can be carried out at the same time to avoid slurry overflow.

[0017] 2. In the utility model, a grouting device based on a new soil-based composite material is set up, and a mixer is arranged inside the grouting pipe. After the grouting liquid enters the grouting pipe, it is mixed under the action of the mixer designed with a spiral spiral structure, so that the grouting liquid remains uniform and the grouting effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] In the figure: 1. Support base plate; 101. Ground-inserted cone rod; 102. Support foot pad; 2. Support vertical rod; 3. Fixed cross bar; 301. Slide groove; 302. Movable rod sleeve; 303. Locking screw; 4. Fixed vertical plate; 401. Slide rail; 402. Slide seat; 403. Movable support plate; 404. Electric push rod; 405. Grouting pipe bracket; 5. Grouting pipe; 501. Grouting hose; 502. One-way valve; 503. Mixer; 504. Grouting nozzle; 504. Liquid level sensor; 505. Liquid level sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0026] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0027] A grouting device for a cave based on a novel soil-based composite material comprises two groups of support bottom plates 1 symmetrically distributed on the left and right sides, the front and rear ends of the support bottom plates 1 are connected with ground-inserted cone rods 101, the ground-inserted cone rods 101 are screwed to make them penetrate into the bottom to enhance the fixing stability, a plurality of groups of support foot pads 102 are evenly distributed on the top of the support bottom plate 1, a support vertical rod 2 is fixed at the middle position of the top of the support bottom plate 1, and a fixed cross bar 3 is connected between the tops of the two groups of support vertical rods 2;

[0028] The front and rear ends of the top of the supporting base plate 1 are fixed with internal thread seats threadedly connected to the ground-inserting cone rod 101, and the top of the ground-inserting cone rod 101 is fixed with an adjustment cap for easy operation.

[0029] In this embodiment, please refer to Figure 2 and Figure 3 The interior of the fixed crossbar 3 is provided with a slide groove 301 extending along the length direction of the fixed crossbar 3, and the outer side of the fixed crossbar 3 is sleeved with multiple groups of slidingly connected movable rod sleeves 302, and the back of the movable rod sleeves 302 is symmetrically connected with locking screws 303 extending out of the outer side of the slide groove 301, and the front side of the fixed crossbar 3 is installed with a fixed vertical plate 4, and the front side of the fixed vertical plate 4 is symmetrically provided with slide rails 401, and the outer side of the slide rail 401 is slidably connected with a slide seat 402, and a movable support plate 403 is provided between the two groups of slide seats 402, and an electric push rod 404 is installed on the top of the front side of the fixed vertical plate 4;

[0030] The internal structure size of the movable rod sleeve 302 is adapted to the external structure size of the fixed cross bar 3. An operating handle is provided on the top of the movable rod sleeve 302. The connection method between the locking screw 303 and the slide groove 301 is a sliding connection. The end of the locking screw 303 extending out of the outside of the slide groove 301 is threadedly connected with a locking nut. The driving end of the electric push rod 404 is fixedly connected to the movable support plate 403 by bolts.

[0031] In this embodiment, please refer to Figure 3 A grouting pipe 5 is installed on the front of the movable support plate 403, a grouting hose 501 is connected to the top of the grouting pipe 5, a one-way valve 502 is installed in the middle section of the grouting hose 501, a mixer 503 is connected to the inside of the grouting pipe 5, and a slurry outlet 504 is installed at the bottom of the grouting pipe 5. After the grouting liquid enters the grouting pipe, it is mixed under the action of the mixer 503 with a spiral spiral structure design, so that the grouting liquid remains uniform and the grouting effect is improved. A liquid level sensor 505 is installed on the outside of the grouting pipe 5 and at the bottom to sense whether the slurry is filled and overflowed;

[0032] A controller is provided on the outer side of the supporting upright 2 on one side, wherein the controller is respectively connected to the electric push rod 404, the one-way valve 502, and the liquid level sensor 505 through wires, and the connection method is electrical connection. The mixer 503 is designed as a spiral structure, and the external structure size of the mixer 503 is adapted to the internal structure size of the grouting pipe 5.

[0033] The working process of the utility model is as follows: when in use, the supporting base plate 1 is placed on the ground above the cave, and the ground-inserted cone rod 101 is threadedly rotated to make it penetrate into the bottom to enhance the fixing stability; the corresponding number of grouting pipes 5 are placed in the grouting pipe bracket 405 according to the number of karst holes in the cave; then the position of the movable rod sleeve 302 is adjusted on the fixed cross bar 3, and the fixing of the locking screw 303 is locked and limited by the locking nut; then the discharge pipe of the slurry barrel is connected to the grouting hose 501, and the electric push rod 401 and the sliding seat 402 are operated at the same time. The rod 404 drives the movable support plate 403 to move downward, so that the grouting pipe 5 penetrates into the pre-buried insert pipe inside the cave hole. At this time, the one-way valve 502 is opened to allow the slurry to flow into the grouting pipe 5. A mixer 503 is arranged inside the grouting pipe 5. After entering the grouting pipe, the grouting liquid is mixed under the action of the mixer 503 with a spiral spiral structure design, so that the grouting liquid remains uniform and the grouting effect is improved. When the slurry is about to overflow, it will touch the liquid level sensor 505 and be sensed in time. At this time, stop and move the grouting pipe 5 upward and then seal the insertion pipe.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of soil-based composite material cave grouting device, comprising two groups of left-right symmetrically distributed supporting bottom plates (1), characterized in that: The front and rear ends of the support base plate (1) are connected to ground-inserted cone rods (101), and a plurality of groups of support foot pads (102) are evenly distributed on the top of the support base plate (1). A support vertical rod (2) is fixed at the middle position of the top of the support base plate (1), and a fixed cross bar (3) is connected between the tops of the two groups of support vertical rods (2). A slide groove (301) extending along the length direction of the fixed cross bar (3) is provided inside the fixed cross bar (3), and a plurality of groups of slidably connected movable rod sleeves (302) are sleeved on the outer side of the fixed cross bar (3), and the back side of the movable rod sleeve (302) is symmetrically connected to the locking screw (303) extending from the outer side of the slide groove (301). A fixed vertical plate (4) is installed on the front side of the fixed cross bar (3), and the front side of the fixed vertical plate (4) is symmetrically provided with a plurality of locking screws (303) extending from the outer side of the slide groove (301). A slide rail (401) is arranged, and a slide seat (402) is slidably connected to the outer side of the slide rail (401), and a movable support plate (403) is arranged between two groups of the slide seats (402). An electric push rod (404) is installed at the top of the front side of the fixed vertical plate (4), and a grouting pipe bracket (405) is installed at the bottom of the fixed vertical plate (4). A grouting pipe (5) is installed on the front side of the movable support plate (403), and a grouting hose (501) is connected to the top of the grouting pipe (5), and a one-way valve (502) is installed in the middle section of the grouting hose (501). The inside of the grouting pipe (5) is connected to a mixer (503), and a slurry outlet nozzle (504) is installed at the bottom of the grouting pipe (5). A liquid level sensor (505) is installed at the outer side of the grouting pipe (5) and at a position located at the bottom.

2. A grouting device for caverns based on a novel soil-based composite material according to claim 1, characterized in that: Internal thread seats threadably connected to the ground-inserting cone rod (101) are fixed at both the front and rear ends of the top of the supporting base plate (1), and an adjustment cap is fixed at the top of the ground-inserting cone rod (101).

3. The grouting device for cave based on the novel soil-based composite material according to claim 1 is characterized in that: The internal structure size of the movable rod sleeve (302) is matched with the external structure size of the fixed cross bar (3), and an operating handle is arranged on the top of the movable rod sleeve (302).

4. The grouting device for caverns based on a novel soil-based composite material according to claim 1 is characterized in that: The locking screw (303) and the slide groove (301) are connected in a sliding manner, and one end of the locking screw (303) extending out of the slide groove (301) is threadedly connected to a locking nut.

5. The cave grouting device based on the novel soil-based composite material according to claim 1 is characterized in that: The driving end of the electric push rod (404) is fixedly connected to the movable support plate (403) by means of bolts, and the grouting pipe (5) is clamped and placed inside the grouting pipe bracket (405).

6. The cave grouting device based on the novel soil-based composite material according to claim 1 is characterized in that: A controller is provided on the outer side of the supporting pole (2) on one side, wherein the controller is respectively connected to the electric push rod (404), the one-way valve (502), and the liquid level sensor (505) through wires, and the connection method is electrical connection.

7. The cave grouting device based on the novel soil-based composite material according to claim 1 is characterized in that: The mixer (503) is designed as a spiral spiral structure, and the external structure size of the mixer (503) is compatible with the internal structure size of the grouting pipe (5).

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