Thin-slotting lifting synchronous grouting device and its usage method

Abstract

A thin-slotting lifting synchronous grouting device and its usage method are provided. The device includes a hollow force-bearing column through which a feeding pipe passes; wherein: left and right cutting plates are respectively fixedly arranged on each side of the hollow force-bearing column; a left connecting plate is fixedly arranged on an outside of the left cutting plate; a right guiding column is fixedly arranged on an outside of the right cutting plate; center lines of the left connecting plate, the right guiding column and the hollow force-bearing column are in a same plane; a top end of to the feeding pipe is connected to a grouting device, and a bottom end is connected to a spraying device; a spraying nozzle of the spraying device stretches out along the hollow force-bearing column; and a lower end of the hollow force-bearing column is connected with a disposable conical head.

Claims

1. A thin-slotting lifting synchronous grouting device, comprising a hollow force-bearing column (3) through which a feeding pipe (8) passes; wherein: a left cutting plate (2) and a right cutting plate (4) are respectively fixedly arranged on each side of the hollow force-bearing column (3) along an axial direction thereof; a left connecting plate (1) socketing with a first drill pipe is fixedly arranged on an outside of the left cutting plate (2); a cross section of the left connecting plate (1) is C-shaped, and an opening direction of the C-shaped plate is away from the left cutting plate (2); a right guiding column (5) is fixedly arranged on an outside of the right cutting plate (4); center lines of the left connecting plate (1), the right guiding column (5) and the hollow force-bearing column (3) are in a same plane; a top end of the feeding pipe (8) is connected to a grouting device; a bottom end of the feeding pipe (8) is connected to a spraying device (6); a spraying nozzle of the spraying device (6) stretches out along the hollow force-bearing column (3); and a lower end of the hollow force-bearing column (3) is connected with a disposable conical head (7).

2. The thin-slotting lifting synchronous grouting device, as recited in claim 1, wherein: both the left cutting plate (2) and the right cutting plate (4) are isosceles trapezoidal; side edges of the trapezoidal cutting plates work as cutting blades; and bottoms of the trapezoidal cutting plates are fixedly arranged on the hollow force-bearing column (3).

3. The thin-slotting lifting synchronous grouting device, as recited in claim 2, wherein: an included angle between waists and a lower base of each trapezoidal cutting plate is in a range of 40-60°.

4. The thin-slotting lifting synchronous grouting device, as recited in claim 2, wherein: a middle part of the right guiding column (5) is cylindrical, and two ends of the right guiding column are conical.

5. The thin-slotting lifting synchronous grouting device, as recited in claim 1, wherein: a distance from a far left side of the left connecting plate (1) to a far right side of the right guiding column (5) is in a range of 500-1000 mm.

6. The thin-slotting lifting synchronous grouting device, as recited in claim 1, wherein: for the hollow force-bearing column (3), an outer diameter and an inner diameter are 60-90 mm and 20-70 mm, respectively; the left connecting plate (1) is with a thickness of 16-25 mm and a height of 100-250 mm; a diameter of a middle part of the right guiding column (5) is 50-70 mm, and an overall height of the right guiding column is 400-600 mm; and a thickness of both the left cutting plate (2) and the right cutting plate (4) is 20-50 mm.

7. The thin-slotting lifting synchronous grouting device, as recited in claim 1, wherein: the left connecting plate (1), the hollow force-bearing column (3), the left cutting plate (2), the right cutting plate (4) and the right guiding column (5) are integrated.

8. A usage method of the thin-slotting lifting synchronous grouting device as recited in claim 1, comprising steps of: (1) according to a design drawing, successively arranging the left connecting plate (1), the hollow force-bearing column (3), the left cutting plate (2), the right cutting plate (4) and the right guiding column (5); wherein an axial section of the hollow force-bearing column (3) should be in a same plane as a plane of a designed anti-seepage wall; (2) on a construction site, passing the feeding pipe (8) through the hollow force-bearing column (3) from top to bottom; connecting the top end of the feeding pipe (8) to the grouting device, and connecting the bottom end of the feeding pipe (8) to the spraying device (6); connecting the disposable conical head (7) to a bottom end of the hollow force-bearing column (3); wherein a top end of the hollow force-bearing column (3) is connected to a second drill pipe on a pressing machine; (3) checking and confirming whether the center lines of the hollow force-bearing column (3), the left connecting plate (1) and the right guiding column (5) are all in the same plane; (4) on one side of the anti-seepage wall that will be constructed, pressing the first drill pipe of which a diameter is matched with the left connecting plate (1) into soil mass to a predetermined depth; (5) putting the left connecting plate (1) on the first drill pipe that has been pressed into the soil mass, and then pressing the entire thin-slotting lifting synchronous grouting device into the soil mass to a predetermined depth by using the pressing machine; (6) lifting up the thin-slotting lifting synchronous grouting device by using a winch, so that the disposable conical head (7) will fall off; (7) starting the grouting device while lifting the thin-slotting lifting synchronous grouting device to make the spraying device (6) start to work; wherein: during a lifting process, a thin anti-seepage wall will gradually form.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The FIGURE is a structural sketch view of a thin-slotting lifting synchronous grouting device according to a preferred embodiment of the present invention.

(2) In this FIGURE, the number 1 represents a left connecting plate; the number 2 represents a left cutting plate; the number 3 represents a hollow force-bearing column; the number 4 represents a right cutting plate; the number 5 represents a right guiding column; the number 6 represents a spraying device; the number 7 represents a disposable conical head; and the number 8 represents a feeding pipe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(3) As shown in the FIGURE, the thin-slotting lifting synchronous grouting device provided in this invention comprises a hollow force-beating column 3, through which a feeding pipe 8 passes; a left cutting plate 2 and a right cutting plate 4 are respectively fixedly arranged on each side of the hollow force-bearing column 3 along the axial direction thereof; a left connecting plate 1 socketing with a first drill pipe is fixedly arranged on the outside of the left cutting plate 2; a right guiding column 5 is fixedly arranged on the outside of the tight cutting plate 4; the center lines of the left connecting plate 1, the right guiding column 5 and the hollow force-bearing column 3 are in a same plane; the top end of the feeding pipe 8 is connected to a grouting device; the bottom end of the feeding pipe 8 is connected to a spraying device 6; a spraying nozzle of the spraying device 6 stretches out along the hollow force-bearing column 3; and the lower end of the hollow force-hearing column 3 is connected with a disposable conical head 7 in a socket connection way. The grouting device can be a slurry transfer pump or a liquid storage tank, and it is an integrated polymer grouting device which feeds the slurry to the feeding pipe 8. The spraying device 6 comprises the spraying nozzle for spraying the slurry. Both of the grouting device and the spraying device are mature technologies and thus no more details are presented here. During the constructing process, the device used for pressing the entire thin-slotting lifting synchronous grouting device into the soil mass is a pressing machine that is very available and thus no more details are presented here.

(4) Furthermore, the cross section of the left connecting plate 1 is C-shaped, and the opening direction of the C-shaped plate is away from the left cutting plate 2, which is convenient for being socked with the first drill pipe and for departing from the first drill pipe, and easy to use.

(5) Furthermore, for quick slotting as well as saving the grouting material, both the left cutting plate 2 and the right cutting plate 4 are trapezoidal; the side edges of the trapezoidal cutting plates work as cutting blades; and the bottom of each trapezoidal cutting plate is fixedly arranged on the hollow force-bearing column 3.

(6) Furthermore, for slotting quickly, the included angle between the waists and the lower base of each trapezoidal cutting plate is in the range of 40-60°.

(7) Furthermore, the middle part of the right guiding column 5 is cylindrical, and the two ends of the right guiding column 5 are conical.

(8) Furthermore, the distance from the far left side of the left connecting plate 1 to the far right side of the right guiding column 5 is in the range of 500-1000 mm.

(9) Furthermore, for the hollow force-bearing column 3, the outer diameter and the inner diameter are 60-90 mm and 20-70 mm, respectively; the left connecting plate 1 is with thickness of 16-25 mm and height of 100-250 mm; the diameter of the middle part of the right guiding column 5 is 50-70 mm, and the overall height of the right guiding column is 400-600 mm; and thickness of both the left cutting plate 2 and right cutting plate 4 is 20-50 mm.

(10) Furthermore, the left connecting plate 1, the hollow force-bearing column 3, the left cutting plate 2, the right cutting plate 4 and the right guiding column 5 are integrated for the stable slotting. The above mentioned components can also be arranged independently.

(11) The present invention further provides a usage method of the thin-slotting lifting synchronous grouting device, comprising steps of:

(12) (1) according to a design drawing, successively arranging the left connecting plate 1, the hollow force-bearing column 3, the left cutting plate 2, the right cutting plate 4 and the right guiding column 5; wherein the axial section of the hollow force-bearing column 3 should be in the same plane as the plane of the designed anti-seepage wall;

(13) (2) on the construction site, passing the feeding pipe 8 through the hollow force-bearing column 3 from top to bottom; connecting the top end of the feeding pipe 8 to the grouting device, and connecting the bottom end of the feeding pipe 8 to the spraying device 6; connecting the disposable conical head 7 to the bottom end of the hollow force-bearing column 3; wherein a top end of the hollow force-bearing column 3 is connected to a second drill pipe on a pressing machine;

(14) (3) checking and confirming whether the center lines of the hollow force-bearing column 3, the left connecting plate 1 and the right guiding column 5 are all in the same plane;

(15) (4) on one side of the anti-seepage wall that will be constructed, pressing the first drill pipe of which a diameter is matched with the left connecting plate 1 into the soil mass to a predetermined depth;

(16) (5) putting the left connecting plate 1 on the first drill pipe that has been pressed into the soil mass, and then pressing the entire thin-slotting lifting synchronous grouting device into the soil mass to the predetermined depth by using the pressing machine;

(17) (6) lifting up the thin-slotting lifting synchronous grouting device by using a winch, so that the disposable conical head 7 will fall off; (7) starting the grouting device while lifting the thin-slotting lifting synchronous grouting device to make the spraying device 6 start to work; wherein: during the lifting process, a thin anti-seepage wall will gradually form.

(18) The above embodiment is merely a preferred embodiment of the present invention. It should be noted that for one skilled in this field, various modifications and improvements can be made without departing from the overall concept of the present invention, which should be all included in the protection scope of the present invention and will not influence the implementation effects and patent utility of the present invention.