Full-automatic grouting and filling device for pile foundation ultra-deep karst cave

Abstract

The utility model relates to the technical field of geotechnical engineering, and discloses a pile foundation ultra-deep karst cave full-automatic grouting filling device which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a slurry storage box, one side of the slurry storage box is in through connection with a feeding pipe, one side of the slurry storage box is in through connection with a circulation pipe, and a conveying pump is fixedly installed in the middle of the circulation pipe. The conveying pump is fixedly installed on the upper surface of the bottom plate, one end of the circulating pipe is in through connection with a folding pipe, one end of the folding pipe is in through connection with a grouting pipe, and an adjusting mechanism is arranged on the upper surface of the bottom plate. The length of the grouting pipe can be conveniently and automatically adjusted according to the depth of a karst cave, constructors do not need to splice and replace the grouting pipe on site, and therefore construction time is saved, construction efficiency is improved, construction cost is reduced, meanwhile, the grouting filling device is endowed with the automatic moving capacity, and construction efficiency is improved. And the grouting device can be rapidly transferred from one construction position to another position, and the grouting requirements of a plurality of karst caves or different construction stages are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a geotechnical engineering technical field especially relates to a pile foundation superdeep karst cave full automation grouting filling device. BACKGROUND

[0002] The karst cave is the cavity formed due to the long-term dissolution of groundwater to soluble rock. In the geological exploration and pile foundation construction process, the karst cave is a common geological phenomenon, when the karst cave is located below the design position of the pile foundation and the depth is large, it is called the pile foundation superdeep karst cave. The existence of the karst cave makes a large number of cavities exist in the foundation, which seriously affects the bearing capacity and stability of the foundation. The grouting filling can inject the slurry into the karst cave, fill the space of the karst cave, and consolidate with the soil around the karst cave to form a whole, thereby improving the bearing capacity and stability of the foundation.

[0003] Through the search, the Chinese patent with the publication number CN211973505U discloses a grouting system for different filling type karst caves. The grouting pipe and the grouting hole have a certain gap, and there is a certain pressure in the grouting process. The slurry is easy to jump from the gap to the overlying soil layer, causing waste of the slurry, and the slurry jumping around may cause adverse effects such as ground uplift and pipeline deformation. Since the space at the bottom of the grouting pipe is sealed, it is difficult to move the grouting core pipe up and down during the insertion and extraction process, which may cause the grouting core pipe to be stuck or damaged due to excessive force. Therefore, the grouting casing can move freely, the slurry can be limited in any range of the grouting area for pouring, and the purpose of sectional grouting is achieved.

[0004] The above grouting filling is convenient for sectional grouting. However, in the prior art, when the grouting pipe is used for grouting the karst cave, the length of the grouting pipe usually needs to be spliced and built according to the depth of the karst cave, which is time-consuming and labor-intensive, increases the workload of the construction personnel, and is not convenient for adjusting the length of the grouting pipe according to the depth of the karst cave on site, which delays the grouting progress. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a pile foundation superdeep karst cave full automation grouting filling device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pile foundation superdeep karst cave full automation grouting filling device, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a slurry storage tank, one side of the slurry storage tank is through connection with a feeding pipe, one side of the slurry storage tank is through connection with a flow pipe, the middle part of the flow pipe is fixedly installed with a conveying pump, the conveying pump is fixedly installed on the upper surface of the bottom plate, one end of the flow pipe is through connection with a folding pipe, one end of the folding pipe is through connection with a grouting pipe, and the upper surface of the bottom plate is provided with an adjusting mechanism.

[0007] As a further description of the above technical solutions:

[0008] The adjusting assembly comprises a fixed shell fixedly connected to the upper surface of the bottom plate, a first stepper motor fixedly installed on the upper surface of the fixed shell, a first screw rod fixedly connected to the output end of the first stepper motor, and the first screw rod rotatably connected to the inside of the fixed shell.

[0009] As a further description of the above technical solutions:

[0010] The first screw rod is externally threadedly connected with a connecting block, the connecting block is slidably connected to the outside of the fixed shell, one side of the connecting block is fixedly connected with a shell rod, the upper surface of the shell rod is fixedly installed with a second stepper motor, and the output end of the second stepper motor is fixedly connected with a second screw rod.

[0011] As a further description of the above technical solutions:

[0012] The inside of the shell rod is slidably connected with an inner column, the inner column is internally provided with a threaded groove, and the second screw rod is threadedly connected in the threaded groove.

[0013] As a further description of the above technical solutions:

[0014] One side of the upper surface of the bottom plate is fixedly connected with a push handle, the lower surface of the bottom plate is provided with a moving mechanism, and the moving mechanism comprises two rotating rods rotatably connected to the lower surface of the bottom plate.

[0015] As a further description of the above technical solutions:

[0016] Both ends of the rotating rod are fixedly connected with track wheels, both sides of the bottom plate are rotatably connected with two auxiliary wheels, and the outside of the two auxiliary wheels and the two track wheels is meshingly connected with a connecting track.

[0017] As a further description of the above technical solutions:

[0018] The lower surface of the bottom plate is fixedly installed with a stepper motor, the output end of the stepper motor is fixedly connected with a driving bevel gear, the middle part of one of the rotating rods is fixedly connected with a driven bevel gear, and the driven bevel gear and the driving bevel gear are in meshing connection.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1. The utility model discloses a length of grouting pipe can be automatically adjusted according to the depth of karst cave through the setting of adjusting mechanism, and the grouting filling device is convenient to splice and replace the grouting pipe according to the depth of karst cave on the spot without construction personnel, which is favorable for saving construction time, improves construction efficiency, reduces construction cost and speeds up construction progress.

[0021] 2. The utility model discloses the setting of moving mechanism adds the function that the grouting filling device is convenient to automatically move, and the grouting filling device convenient to move can be quickly transferred from one construction position to another position, thereby being convenient for adapting to the grouting demand of multiple karst caves or different construction stages, can quickly switch between different karst caves, reduces waiting time and equipment idle time, thereby improving overall construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure schematic diagram that the utility model proposes is shown in the figure;

[0023] Figure 2 The flow pipe structure schematic diagram that the utility model proposes is shown in the figure;

[0024] Figure 3 The rotating rod structure schematic diagram that the utility model proposes is shown in the figure;

[0025] Figure 4 The fixed shell structure schematic diagram that the utility model proposes is shown in the figure;

[0026] Figure 5 The connecting block structure schematic diagram that the utility model proposes is shown in the figure;

[0027] Figure 6 The inner column structure schematic diagram that the utility model proposes is shown in the figure.

[0028] Legend:

[0029] 1, bottom plate;2, grout storage tank;3, feed pipe;4, flow pipe;5, delivery pump;6, folding pipe;7, grouting pipe;8, fixed shell;9, first stepper motor;10, first screw;11, connecting block;12, shell rod;13, second stepper motor;14, second screw;15, inner column;16, thread groove;17, push handle;18, rotating rod;19, caterpillar wheel;20, auxiliary wheel;21, connecting caterpillar;22, stepper motor;23, driving bevel gear;24, driven bevel gear. DETAILED DESCRIPTION

[0030] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model below, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] As shown in the accompanying Figures 1-6 The utility model provides an embodiment: a pile foundation super deep cave full automatic grouting filling device, including the bottom plate 1, the upper surface fixed connection of bottom plate 1 has the grout storage tank 2, the side through connection of grout storage tank 2 has the feed pipe 3, the side through connection of grout storage tank 2 has the flow pipe 4, the middle fixed mounting of flow pipe 4 has the delivery pump 5, and the delivery pump 5 is fixedly installed on the upper surface of bottom plate 1, and one end of flow pipe 4 is through connection has the folding pipe 6, and one end of folding pipe 6 is through connection has the grouting pipe 7, and the upper surface of bottom plate 1 is provided with adjusting mechanism, and grout storage tank 2 is used to store the grout that needs to be injected, and folding pipe 6 is convenient for the position height of inner column 15 to produce telescopic folding according to movement.

[0032] As shown in the accompanying Figure 3 The adjusting assembly includes fixed shell 8, and fixed shell 8 is fixedly connected on the upper surface of bottom plate 1, and the upper surface of fixed shell 8 is fixedly installed with first stepper motor 9, and the output end of first stepper motor 9 is fixedly connected with first screw rod 10, and first screw rod 10 is rotatably connected in the inside of fixed shell 8, and the outside of first screw rod 10 is threadedly connected with connecting block 11, and connecting block 11 is slidably connected on the outside of fixed shell 8, and one side of connecting block 11 is fixedly connected with shell rod 12, and the upper surface of shell rod 12 is fixedly installed with second stepper motor 13, and first screw rod 10 is convenient for driving the height of connecting block 11 to move, and fixed shell 8 plays a limiting role to the movement of connecting block 11, and shell rod 12 is convenient for playing a limiting role to the movement of inner column 15.

[0033] As shown in the accompanying Figure 5 The output end of second stepper motor 13 is fixedly connected with second screw rod 14, which is convenient for moving inner column 15 under the action of screw groove 16.

[0034] As shown in the accompanying Figure 6 The inside of shell rod 12 is slidably connected with inner column 15, and the inside of inner column 15 is provided with screw groove 16, and second screw rod 14 is threadedly connected in the inside of screw groove 16, which is convenient for pushing inner column 15 to move, and the height of inner column 15 is adjusted.

[0035] As shown in the accompanying Figure 3As shown, the upper surface side of the bottom plate 1 is fixedly connected with a push handle 17, the lower surface of the bottom plate 1 is provided with a moving mechanism, the moving mechanism comprises two rotating rods 18, the two rotating rods 18 are rotatably connected to the lower surface of the bottom plate 1, the two ends of the rotating rod 18 are fixedly connected with track wheels 19 respectively, the two sides of the bottom plate 1 are rotatably connected with two auxiliary wheels 20 respectively, the outer portions of the two auxiliary wheels 20 and the two track wheels 19 are meshingly connected with a connecting track 21, the lower surface of the bottom plate 1 is fixedly installed with a stepping motor 22, the output end of the stepping motor 22 is fixedly connected with a driving bevel gear 23, the middle portion of one of the rotating rods 18 is fixedly connected with a driven bevel gear 24, the driven bevel gear 24 and the driving bevel gear 23 are meshingly connected, the rotating rod 18 is convenient for connecting the two track wheels 19, the auxiliary wheel 20 plays a tensioning role on the connecting track 21, and the connection of the driven bevel gear 24 and the driving bevel gear 23 is convenient for driving one of the rotating rods 18 to move.

[0036] Working principle: when the height of the grouting pipe 7 needs to be adjusted during grouting, the grouting pipe 7 is first inserted into the groove connected with the karst cave opened in advance, and then the first stepping motor 9 is first started to drive the first screw rod 10 to rotate, the first screw rod 10 drives the connecting block 11 to slide outside the fixed shell 8, so that the connecting block 11 drives the shell rod 12 to move downward, at this time, the shell rod 12 extends into the groove and drives the grouting pipe 7 fixed with the inner column 15 to complete a certain distance of height adjustment in the groove, and if the grouting pipe 7 does not reach the inside of the karst cave at this time, the second stepping motor 13 is started again to drive the second screw rod 14 to rotate, and at the same time, the second screw rod 14 drives the inner column 15 to slide in the threaded groove 16, and the outer shell rod 12 limits the inner column 15, so that the inner column 15 drives the fixed grouting pipe 7 to be adjusted in height again in the groove, and the two-stage automatic height adjustment mode is convenient for adapting to different depths of the super-deep karst cave.

[0037] When the whole device needs to be moved, the stepping motor 22 is started, the stepping motor 22 drives the driving bevel gear 23 to rotate, the driving bevel gear 23 drives the driven bevel gear 24 to rotate, thereby driving one of the rotating rods 18 to rotate, and the rotating rod 18 drives the two track wheels 19 connected thereto to rotate, under the connection of the connecting track 21, the other track wheel 19 is driven to rotate, thereby facilitating the movement of the whole device while driving the bottom plate 1 to move.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A full-automatic grouting and filling device for pile foundation super-deep cave, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a slurry storage tank (2), one side of the slurry storage tank (2) is throughly connected with a feeding pipe (3), one side of the slurry storage tank (2) is throughly connected with a flow pipe (4), the middle part of the flow pipe (4) is fixedly installed with a conveying pump (5), the conveying pump (5) is fixedly installed on the upper surface of the bottom plate (1), one end of the flow pipe (4) is throughly connected with a folding pipe (6), one end of the folding pipe (6) is throughly connected with a grouting pipe (7), and the upper surface of the bottom plate (1) is provided with an adjusting mechanism.

2. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 1, characterized in that: The adjusting mechanism comprises a fixed shell (8) fixedly connected to the upper surface of the bottom plate (1), a first stepper motor (9) fixedly installed on the upper surface of the fixed shell (8), a first screw rod (10) fixedly connected to the output end of the first stepper motor (9), and the first screw rod (10) is rotatably connected inside the fixed shell (8).

3. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 2, characterized in that: The first screw rod (10) is externally threaded with a connecting block (11) which is slidingly connected outside the fixed shell (8), the connecting block (11) is fixedly connected with a shell rod (12) on one side, the shell rod (12) is fixedly installed with a second stepper motor (13) on the upper surface, and the output end of the second stepper motor (13) is fixedly connected with a second screw rod (14).

4. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 3, characterized in that: The inside of the shell rod (12) is slidingly connected with an inner column (15), the inner column (15) is internally provided with a threaded groove (16), and the second screw rod (14) is threadedly connected inside the threaded groove (16).

5. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a push handle (17), the lower surface of the bottom plate (1) is provided with a moving mechanism, and the moving mechanism comprises two rotating rods (18) rotatably connected to the lower surface of the bottom plate (1).

6. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 5, characterized in that: The both ends of the rotating rod (18) are fixedly connected with track wheels (19), the both sides of the bottom plate (1) are rotatably connected with two auxiliary wheels (20), and the outside of the two auxiliary wheels (20) and the two track wheels (19) are meshingly connected with a connecting track (21).

7. The pile foundation super-deep cave full-automatic grouting and filling device according to claim 5, characterized in that: The lower surface of the bottom plate (1) is fixedly installed with a stepper motor (22), the output end of the stepper motor (22) is fixedly connected with a driving bevel gear (23), the middle part of one of the rotating rods (18) is fixedly connected with a driven bevel gear (24), and the driven bevel gear (24) and the driving bevel gear (23) are meshingly connected.

Images