Tunnel advanced small guide pipe rapid grouting device

Abstract

The utility model discloses a fast grouting device for a tunnel advanced small guide pipe, which comprises two grouting cylinders and a plurality of mixers, wherein each grouting cylinder is a horizontally arranged cylinder body, and the left end and the right end of each grouting cylinder are closed; the left end and the right end of each grouting cylinder are axially connected with a first galvanized pipe respectively; the first galvanized pipe at the left end is used for being connected with a grouting pump; valves are arranged on the first galvanized pipes at the right ends; a plurality of grout guide pipes are arranged on the side wall of the upper portion of each grouting barrel at intervals in the length direction of the grouting barrel, and all the grout guide pipes perpendicularly communicate with the grouting barrels. The number of the mixers is the same as that of the slurry guide pipes on one grouting barrel, each mixer is provided with two slurry inlets and a slurry outlet, one slurry inlet corresponds to one grouting barrel and is connected with one slurry guide pipe on the grouting barrel, and one slurry outlet is connected with one advanced small guide pipe. By adopting the device, rapid grouting of a plurality of advanced small guide pipes is achieved, meanwhile, machining and dismounting are convenient, and reutilization can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel grouting, and in particular relates to a tunnel advanced small-duct rapid grouting device. Background Art

[0002] When the tunnel is grouting with a small duct in advance, the grouting efficiency of a single grouting pump is very slow. Grouting is done with a stop plug in the small duct, which takes a long time to install and remove. When the stop plug is removed immediately after the grouting is stopped, the slurry flows out of the small duct hole, resulting in serious slurry loss and almost no grouting effect. Utility Model Content

[0003] The utility model aims to provide a tunnel advance small duct fast grouting device, which can realize the fast grouting of multiple advance small ducts, ensure the grouting pressure and grouting effect, and is easy to process and disassemble and can be reused.

[0004] The utility model adopts the following technical scheme: a tunnel advance small conduit fast grouting device, comprising: two grouting cylinders and multiple mixers, wherein:

[0005] Each grouting tube is a horizontally arranged cylinder, and its left and right ends are closed; the left and right ends of each grouting tube are axially connected to the first galvanized pipe; the first galvanized pipe at the left end is used to connect to the grouting pump (6); the first galvanized pipe at the right end is provided with a valve;

[0006] On the upper side wall of each grouting cylinder, a plurality of grouting pipes are arranged at intervals along the length thereof, and each grouting pipe is vertically connected to the grouting cylinder;

[0007] The number of the mixers is the same as the number of the slurry guide pipes on a grouting cylinder. Each mixer is provided with two slurry inlets and one slurry outlet. One slurry inlet corresponds to one grouting cylinder and is connected to a slurry guide pipe on the grouting cylinder, and one slurry outlet is connected to an advance small duct.

[0008] Furthermore, it also includes connecting pipes and ball valves, the number of which is the same as the number of mixers, one end of a connecting pipe is connected to the slurry outlet of the corresponding mixer, and the other end is used to connect to the advance small duct; the ball valve is arranged between the connecting pipe and the advance small duct to block the advance small duct.

[0009] Furthermore, a second ball valve is installed between the slurry outlet and the connecting pipe.

[0010] Furthermore, the positions of the two slurry guide pipes connected to the two slurry inlets on the corresponding grouting cylinders are consistent.

[0011] Furthermore, horizontally arranged steel bars are arranged at the bottom of each grouting tube and at both left and right ends thereof, and each steel bar is arranged vertically and cross-wise with the grouting tube.

[0012] Furthermore, the slurries in the two grouting barrels are different, one is used to contain cement slurry, and the other is used to contain water glass.

[0013] The beneficial effects of the utility model are: 1. Two grouting tubes are selected, and the two grouting tubes are connected to a grouting pump. Multiple grouting pipes are set on each grouting tube, and the same number of mixers as the number of grouting pipes is selected. One mixer is connected to a corresponding small advance tube, that is, one grouting pump is used to supply pressure to the grouting tube, and the slurry in the grouting tube is input into multiple small advance tubes through multiple grouting pipes, so that one grouting pump can perform grouting in several small advance tubes at the same time, and the grouting efficiency is improved. 2. A ball valve is set between the connecting pipe and the small advance tube. After the grouting of the small advance tube is completed, the ball valve is closed, and the slurry in the small advance tube will not be lost, thereby ensuring the grouting effect; and the time for disassembling the stop plug and pressurizing and relieving pressure is eliminated, thus saving grouting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a grouting barrel;

[0015] Figure 2 It is the left view of the grouting barrel;

[0016] Figure 3 It is a structural schematic diagram of a tunnel advance small-duct rapid grouting device.

[0017] Among them: 1. Steel pipe; 2-1. First galvanized pipe; 2. Second galvanized pipe; 3-1. First quick connector; 3. Second quick connector; 4. Valve; 5. Steel bar; 6. Grouting pump; 9. First slurry delivery pipe; 10. Second slurry delivery pipe 11. Conduit; 12. Slurry inlet; 13. Slurry outlet; 14. Ball valve; 16. Mixer; 16-1. Connecting pipe. DETAILED DESCRIPTION

[0018] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0019] The utility model discloses a tunnel advance small conduit fast grouting device, such as Figure 1 , 2 and 3, comprising: two grouting cylinders 1 and a plurality of mixers 16 wherein:

[0020] Each grouting cylinder 1 is a horizontally arranged cylinder, and its left and right ends are closed; the left and right ends of each grouting cylinder 1 are axially connected to the first galvanized pipe 2-1; the first galvanized pipe 2-1 at the left end is used to connect to the grouting pump 6; the first galvanized pipe 2-1 at the right end is provided with a valve 4, and the valve 4 is used for later flushing pipeline pressure relief. The end of the first galvanized pipe 2-1 at the left end is welded with a first quick connector 3-1.

[0021] The grouting pump 6 has two delivery pipes, namely a first slurry delivery pipe 9 and a second slurry delivery pipe 10. The first slurry delivery pipe 9 and the second slurry delivery pipe 10 are each connected to a conduit 11. One conduit 11 is connected to the first galvanized pipe 2-1 at the left end of the first grouting tube 1 through a first quick connector 3-1; the other conduit 11 is connected to the first galvanized pipe 2-1 at the left end of the second grouting tube 1 through a first quick connector 3-1.

[0022] The above-mentioned grouting tube 1 is made of steel and has a diameter of 108 mm and a length of 60 cm. The slurries in the two grouting tubes 1 are different, one is used to hold cement slurry, and the other is used to hold water glass, and the slurries are introduced into the mixer 16 for mixing.

[0023] On the upper side wall of each grouting tube 1, a plurality of grouting pipes 2 are arranged at intervals along the length thereof, and each grouting pipe 2 is vertically connected to the grouting tube 1; a second quick connector 3 is welded at the end of each grouting pipe 2, and the second quick connector 3 serves as a quick grouting interface.

[0024] The plurality of slurry guide pipes 2 are divided into two rows on the grouting cylinder 1 , and each row is arranged along the left and right direction of the slurry guide pipes 2 ; two adjacent slurry guide pipes 2 in the two rows are arranged alternately.

[0025] The number of the mixers 16 is the same as the number of the slurry guide pipes 2 on a grouting cylinder 1. Each mixer 16 is provided with two slurry inlets 12 and one slurry outlet 13. One slurry inlet 12 corresponds to one grouting cylinder 1 and is connected to a slurry guide pipe 2 on the grouting cylinder 1, specifically through a conduit 11; one slurry outlet 13 is connected to an advance small conduit.

[0026] The above-mentioned tunnel advance small conduit rapid grouting device also includes a connecting pipe 16-1 and a ball valve 14. The number of connecting pipes 16-1 and ball valves 14 is the same as the number of mixers 16. One end of a connecting pipe 16-1 is connected to the corresponding slurry outlet 13 of the mixer 16, and the other end is used to connect to the advance small conduit; the ball valve 14 is arranged between the connecting pipe 16-1 and the advance small conduit to block the advance small conduit. The connecting pipe 16-1 is selected to be DN25 in specification. A second ball valve is installed between the slurry outlet 13 and the connecting pipe 16-1. When the grouting of the corresponding advance small conduit is completed, the second ball valve is closed at the same time to prevent the slurry transported by the grouting barrel 1 from overflowing from the connecting pipe 16-1.

[0027] The positions of the two slurry guide pipes 2 connected to the two slurry inlets 12 on the corresponding grouting cylinders 1 are consistent. Specifically, the multiple slurry guide pipes 2 on each grouting cylinder 1 from left to right are arranged in the order of the leftmost end being the first and the rightmost end being the last. The first and the first on the two grouting cylinders 1 are grouped together, the second and the second are grouped together, and the last and the last are grouped together in sequence to the rightmost end. Each group of slurry guide pipes 2 is connected to a mixer 16, and one slurry guide pipe 2 in each group is connected to a slurry inlet 12.

[0028] At the bottom of each grouting tube 1, and at both ends thereof, a horizontally arranged steel bar 5 of 50 cm in length is arranged, and each steel bar 5 is arranged vertically and crosswise with the grouting tube 1. The arrangement of the steel bar 5 ensures that the steel pipe 1 does not roll when placed on the ground.

[0029] The grouting method using the above-mentioned tunnel advance small pipe fast grouting device comprises the following steps:

[0030] The grouting pump 6 supplies pressure to the two grouting cylinders 1. The slurry in the two grouting cylinders 1 is discharged through multiple slurry guide pipes 2, enters the corresponding mixer 16 through the slurry inlet 12, is mixed therein, and is introduced into the connected advance small conduits through the slurry outlet 13 for grouting, ensuring that several advance small conduits are grouted at the same time.

[0031] After grouting of one advance small conduit, close the ball valve 14 at the grouting end of the advance small conduit to seal the slurry in the advance small conduit; close the second ball valve, remove the connection between the connecting pipe 16-1 and the ball valve 14, connect the connecting pipe 16-1 to the next advance small conduit to be grouted, and continue grouting.

Claims

1. A tunnel advance small pipe rapid grouting device, characterized in that: include: Two grouting drums (1) and a plurality of mixers (16) wherein: Each of the grouting cylinders (1) is a horizontally arranged cylinder, and its left and right ends are closed; the left and right ends of each of the grouting cylinders (1) are axially connected to the first galvanized pipe (2-1); the first galvanized pipe (2-1) at the left end is used to connect to the grouting pump (6); and the first galvanized pipe (2-1) at the right end is provided with a valve (4); A plurality of grouting pipes (2) are arranged on the upper side wall of each grouting cylinder (1) and at intervals along its length, and each grouting pipe (2) is vertically connected to the grouting cylinder (1); The number of the mixers (16) is the same as the number of the slurry guide pipes (2) on one grouting barrel (1), and each mixer (16) is provided with two slurry inlets (12) and one slurry outlet (13). One slurry inlet (12) corresponds to one grouting barrel (1) and is connected to a slurry guide pipe (2) on the grouting barrel (1), and one slurry outlet (13) is connected to one of the advance small guide pipes.

2. A tunnel advance small pipe rapid grouting device as claimed in claim 1, characterized in that: It also includes a connecting pipe (16-1) and a ball valve (14), the number of the connecting pipe (16-1) and the ball valve (14) being the same as the number of the mixers (16), one end of a connecting pipe (16-1) being connected to a slurry outlet (13) of the corresponding mixer (16), and the other end being used to be connected to an advance small conduit; the ball valve (14) being arranged between the connecting pipe (16-1) and the advance small conduit, and being used to block the advance small conduit.

3. A tunnel advance small pipe rapid grouting device as claimed in claim 2, characterized in that: A second ball valve is installed between the slurry outlet (13) and the connecting pipe (16-1).

4. A tunnel advance small pipe rapid grouting device as claimed in claim 3, characterized in that: The two slurry guide pipes (2) connected to the two slurry inlets (12) are located at the same position on the corresponding grouting cylinder (1).

5. A tunnel advance small pipe rapid grouting device as claimed in claim 4, characterized in that: At the bottom of each grouting tube (1), and at both left and right ends thereof, there are horizontally arranged steel bars (5), and each of the steel bars (5) is arranged vertically and crosswise with the grouting tube (1).

6. A tunnel advance small pipe rapid grouting device as claimed in claim 5, characterized in that: The two grouting barrels (1) contain different slurries, one for containing cement slurry and the other for containing water glass.

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