Slope reinforcing device for geotechnical engineering and using method thereof

Abstract

The invention discloses a slope reinforcing device for geotechnical engineering and a using method thereof, and belongs to the field of slope reinforcing. The upper end of the tensioning piece is fixedly connected with a circular ring in sliding fit with the annular groove. The sliding cylinder comprises a cylinder; the cylinder is located in the outer cylinder and is in sliding fit with the outer cylinder, the upper end of the outer circle face of the cylinder is fixedly connected with a sliding block in sliding fit with the sliding way, and the lower end of the outer circle face of the cylinder is fixedly connected with a connecting ring; the inner wall of the connecting ring is fixedly connected with a threaded ring through a support. And the threaded ring is in threaded connection with the adjusting screw rod. When the outer cylinder and the sliding cylinder are installed, the holes are formed in the outer cylinder and the sliding cylinder according to the maximum length, the sliding cylinder can move upwards relatively during mechanical fixing, enough space is reserved at the bottom of the sliding cylinder for later grout reinjection, and more convenience and efficiency are achieved; and meanwhile, the part, close to the cross-shaped connecting piece, of the iron wire grating can be tightly pressed on the ground through the pressing rod, so that it is guaranteed that the iron wire grating can be fully tensioned, and the protection effect of the iron wire grating is guaranteed.

Description

Technical Field

[0001] The invention relates to a slope reinforcement device for geotechnical engineering and a use method thereof, belonging to the field of slope reinforcement. Background Art

[0002] When reinforcing the slope, it is common to lay wire mesh on the slope for active protection, then cover the upper end with wire mesh for passive protection, and finally fix it to the ground with anchor bolts and keep it taut to ensure the protection effect. In emergency projects, temporary protection or projects with tight schedules, mechanical anchor rods are usually used for rapid reinforcement, but they often need to be monitored after reinforcement. After evaluating their damaged fixing performance, grouting is often required to enhance their mechanical properties. However, the existing method of grouting is to drill holes next to the anchor rod to connect to the bottom of the mechanical anchor rod, deepen the hole at the bottom of the mechanical anchor rod, make the hole depth greater than the length of the anchor rod, and then perform grouting to ensure the mechanical properties after grouting. This is extremely troublesome, so it is necessary to improve it. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a slope reinforcement device for geotechnical engineering and a method of using the same.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A slope reinforcement device for geotechnical engineering, comprising a cover plate, an adjusting screw, an outer cylinder, a tensioning sheet and a sliding cylinder; the outer cylinder comprises an outer cylinder body; a slideway is provided at the bottom of the inner wall of the outer cylinder body, and an annular groove is provided on the outer side of the bottom of the outer cylinder body; the upper end of the tensioning sheet is fixedly connected to a circular ring that slidably cooperates with the annular groove; the sliding cylinder comprises a cylinder; the cylinder is located inside the outer cylinder body and slidably cooperates with the outer cylinder body, the upper end of the outer cylindrical surface of the cylinder is fixedly connected to a sliding block that slidably cooperates with the slideway, and the lower end of the outer cylindrical surface of the cylinder is fixedly connected to a connecting ring; a threaded ring is fixedly connected to the inner wall of the connecting ring through a bracket; the upper end of the connecting ring is fixedly connected to the tensioning sheet; the threaded ring is threadedly connected to the adjusting screw; the outer cylinder and the sliding cylinder are located in the hole; the adjusting screw passes through the cover plate and presses the cover plate tightly against the upper end of the outer cylinder body.

[0006] A method for using a slope reinforcement device for geotechnical engineering, the method comprising the following steps:

[0007] Step 1: Turn the adjusting screw to connect it with the threaded ring, and then place the slide vertically against the ground;

[0008] Step 2: Tap the upper end of the adjusting screw to embed the sliding cylinder and the outer cylinder into the ground;

[0009] Step 3: Loosen the adjusting screw to disengage it from the threaded ring, then place the wire grille into the through slot, and make the cross connector connecting the wire grille located inside the outer cylinder;

[0010] Step 4: Place the pressure rod on the upper end of the corresponding wire grid, and adjust the length of the pressure rod extending outside the outer cylinder according to the surrounding slope;

[0011] Step 5: Place the cover plate on the upper end of the outer cylinder, then pass the adjusting screw through the eccentric hole and connect it to the threaded ring again;

[0012] Step 6: Turn the adjusting screw to make the adjusting screw drive the slide tube to move upward, and finally drive the tensioning plate to deform, so that the tensioning plate is close to the inner wall of the hole;

[0013] Step 7: When additional slurry needs to be injected, turn the adjusting screw, then remove the cover plate, use a vacuum cleaner to remove the loose soil in the hole, then inject grout into the inner wall of the outer cylinder through the grouting pipe until the requirements are met, repeat step 5, and reinstall the adjusting screw.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when installing the outer cylinder and the sliding cylinder, holes are opened according to the maximum length of the outer cylinder and the sliding cylinder. When mechanical fixation is performed, the sliding cylinder will move upward relatively, so that sufficient space is reserved at the bottom of the sliding cylinder for later slurry injection, which is more convenient and efficient. At the same time, the present invention can also press the wire grille near the cross connector to the ground through a pressure rod to ensure that the wire grille can be fully tensioned and the protective effect of the wire grille is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a slope reinforcement device for geotechnical engineering of the present invention;

[0016] Figure 2 It is a structural schematic diagram of a cover plate of a slope reinforcement device for geotechnical engineering of the present invention;

[0017] Figure 3 It is a schematic structural diagram of an outer cylinder of a slope reinforcement device for geotechnical engineering of the present invention;

[0018] Figure 4 It is a schematic diagram of the connection structure of a ring and a tensioning plate of a slope reinforcement device for geotechnical engineering of the present invention;

[0019] Figure 5 It is a schematic structural diagram of a slide tube of a slope reinforcement device for geotechnical engineering of the present invention;

[0020] Figure 6 It is a cross-sectional view of a slope reinforcement device for geotechnical engineering of the present invention;

[0021] Figure 7 It is a cross-sectional view of a geotechnical engineering slope reinforcement device connected to a wire grid according to the present invention;

[0022] Figure 8 yes Figure 7 Sectional view in the AA direction;

[0023] Fig. 9 The invention is a schematic diagram of the installation structure of a slope reinforcement device for geotechnical engineering located near a convex surface at a concave part of a slope. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Specific implementation method 1: Figure 1-9 As shown, this embodiment describes a slope reinforcement device for geotechnical engineering, including a cover plate 1, an adjusting screw 2, an outer cylinder 3, a tensioning sheet 4 and a slide cylinder 5; the outer cylinder 3 includes an outer cylinder body 31; a slideway 35 is provided at the bottom of the inner wall of the outer cylinder body 31, and an annular groove 36 is provided on the outer side of the bottom of the outer cylinder body 31; a ring 41 that is slidably matched with the annular groove 36 is fixedly connected to the upper end of the tensioning sheet 4; the slide cylinder 5 includes a cylinder 51; the cylinder 51 is located inside the outer cylinder body 31 and slides with the outer cylinder body 31 The upper end of the outer circumference of the cylinder 51 is fixedly connected with a slider 52 that slidably cooperates with the slideway 35, and the lower end of the outer circumference of the cylinder 51 is fixedly connected with a connecting ring 53; a threaded ring 55 is fixedly connected to the inner wall of the connecting ring 53 through a bracket 54; the upper end of the connecting ring 53 is fixedly connected to the tensioning plate 4; the threaded ring 55 is threadedly connected to the adjusting screw 2; the outer cylinder 3 and the slide cylinder 5 are located in the hole 8; the adjusting screw 2 passes through the cover plate 1 and presses the cover plate 1 against the upper end of the outer cylinder body 31.

[0026] The threaded ring 55 is not concentric with the connecting ring 53 , so that the adjusting screw 2 avoids the cross connecting piece 7 .

[0027] A through slot 32 is provided at the upper end of the side surface of the outer cylinder 31 , and the through slot 32 is slidably matched with the wire grille 6 . The cross connector 7 connected to the wire grille 6 is located inside the outer cylinder 31 .

[0028] A pressure rod 33 is also provided in the through groove 32 and is slidably matched with the through groove 32 and is located at the upper end of the wire grille 6 . An arc groove 34 matching the wire grille 6 is provided at the lower end of the pressure rod 33 .

[0029] The cover plate 1 includes a plate body 11 ; an eccentric hole 13 is provided on the plate body 11 , and the eccentric hole 13 is slidably matched with the adjusting screw 2 ; a plurality of limit blocks 12 are also provided at the lower end of the plate body 11 , and the limit blocks 12 are located on the side of the corresponding pressure rod 33 .

[0030] The total height of the circular ring 41, the tensioning piece 4 and the connecting ring 53 is greater than the height of the annular groove 36. After the adjusting screw 2 drives the slide 5 to move upward, the tensioning piece 4 can be deformed under the action of external force.

[0031] The height of the annular groove 36 is 0.2-0.3 times the height of the outer cylinder 31. The bottom of the slide cylinder 5 is left with enough height for filling the slurry.

[0032] When the cylinder 51 slides upward until the connecting ring 53 contacts the bottom of the outer cylinder 31 , the tensioning sheet 4 bends and abuts against the inner wall of the hole 8 .

[0033] There are four pressure rods 33. The number of pressure rods 33 can be determined and installed according to actual needs.

[0034] A method for using a slope reinforcement device for geotechnical engineering, the method comprising the following steps:

[0035] Step 1: Turn the adjusting screw 2 to connect it with the threaded ring 55, and then place the slide 5 vertically against the ground;

[0036] Step 2: Knock the upper end of the adjusting screw 2 to embed the sliding cylinder 5 and the outer cylinder 3 into the ground;

[0037] Step 3: Loosen the adjusting screw 2 to disengage the screw ring 55, then put the wire grille 6 into the through groove 32, and make the cross connector 7 connected to the wire grille 6 located inside the outer cylinder 31;

[0038] Step 4: Place the pressure rod 33 on the upper end of the corresponding wire grid 6, and appropriately adjust the length of the pressure rod 33 extending outside the outer cylinder 31 according to the surrounding slope;

[0039] Step 5: Place the cover plate 1 on the upper end of the outer cylinder 31, then pass the adjusting screw 2 through the eccentric hole 13 and connect it to the threaded ring 55 again;

[0040] Step 6: Turn the adjusting screw 2 so that the adjusting screw 2 drives the slide 5 to move upward, and finally drives the tensioning sheet 4 to deform, and makes the tensioning sheet 4 close to the inner wall of the hole 8;

[0041] Step 7: When additional slurry is needed, turn the adjusting screw 2, then remove the cover plate 1, use a vacuum device to remove the loose soil in the hole 8, and then inject grout into the inner wall of the outer cylinder 31 through the grouting pipe until the requirement is met, repeat step 5, and reinstall the adjusting screw 2.

[0042] The working principle of the present invention is as follows: when using the device, the adjusting screw 2 is turned to connect it with the threaded ring 55, and then the slide 5 is placed vertically against the ground;

[0043] The upper end of the adjusting screw 2 is knocked, so that the adjusting screw 2 drives the slide 5 to move downward. When the length of the slide 5 and the outer cylinder 3 reaches the maximum length, the slide 5 drives the outer cylinder 3 to move downward together until it moves to Figure 7 The state shown is that the slide cylinder 5 and the outer cylinder 3 are both located on the ground;

[0044] Loosen the adjusting screw 2 to disengage the screw ring 55, then put the wire grille 6 into the through groove 32, and make the cross connector 7 connected to the wire grille 6 located inside the outer cylinder 31;

[0045] The pressure rod 33 is placed at the upper end of the corresponding wire grille 6, and the length of the pressure rod 33 extending outside the outer cylinder 31 is appropriately adjusted according to the surrounding slope; especially in the concave part of the slope, since the wire grille 6 in the concave part cannot be abutted against the concave surface, the concave part is very prone to landslides, etc., so it is necessary to add additional anchor rods to press the wire grille 6 on the concave surface. Usually, when constructing in the concave part, the spacing between adjacent anchor rods is in the range of 1.5m-2m to ensure that the wire grille 6 can be fully tensioned. However, the slope surface in the concave part is not flat, resulting in uncontrollable spacing between anchor rods. When using this device in the concave part of the slope, the pressure rod 33 can be adjusted by the pressure rod 33 to protrude outside the outer cylinder 31, so that the control distance of the outer cylinder 31 and the slide cylinder 5 embedded in the hole 8 can be extended to the bottom of the convex part of the slope to ensure the tensioning effect and avoid the bottom of the convex part of the slope from being unable to fully abut against the wire grille 6 (such as Fig. 9 status shown).

[0046] Place the cover plate 1 on the upper end of the outer cylinder 31, then pass the adjusting screw 2 through the eccentric hole 13 and connect it to the threaded ring 55 again;

[0047] By rotating the adjusting screw 2 until it is in contact with the cover plate 1, rotating the adjusting screw 2 again will drive the slide 5 to move upward through the threaded ring 55, and finally drive the tensioning plate 4 to deform and make the tensioning plate 4 close to the inner wall of the hole 8; at the same time, after the slide 5 moves upward, the distance between the slide 5 and the bottom surface of the hole 8 gradually increases, so that there is enough space for the subsequent slurry to flow out, so that the mechanical properties of the device can be guaranteed after the slurry is replenished.

[0048] When it is necessary to replenish the slurry, turn the adjusting screw 2, then remove the cover plate 1, use a vacuum device to remove the loose soil in the hole 8, and then inject grout into the inner wall of the outer cylinder 31 through the grouting pipe. The slurry flows along the outer cylinder 31 and the slide 5 to the bottom of the hole 8 until the hole 8 and the inside of the outer cylinder 31 and the slide 5 are filled. Finally, reinstall the adjusting screw 2.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms of assembly without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A slope reinforcement device for geotechnical engineering, characterized in that: The invention comprises a cover plate (1), an adjusting screw (2), an outer cylinder (3), a tensioning sheet (4) and a slide cylinder (5); the outer cylinder (3) comprises an outer cylinder body (31); a slideway (35) is provided at the bottom of the inner wall of the outer cylinder body (31); an annular groove (36) is provided at the outer side of the bottom of the outer cylinder body (31); a circular ring (41) which is slidably matched with the annular groove (36) is fixedly connected to the upper end of the tensioning sheet (4); the slide cylinder (5) comprises a cylinder (51); the cylinder (51) is located inside the outer cylinder body (31) and is slidably matched with the outer cylinder body (31); the outer side of the cylinder (51) is A slider (52) that slidably cooperates with the slideway (35) is fixedly connected to the upper end of the circular surface, and a connecting ring (53) is fixedly connected to the lower end of the outer circular surface of the cylinder (51); a threaded ring (55) is fixedly connected to the inner wall of the connecting ring (53) via a bracket (54); the upper end of the connecting ring (53) is fixedly connected to the tensioning plate (4); the threaded ring (55) is threadedly connected to the adjusting screw (2); the outer cylinder (3) and the slide cylinder (5) are located in the hole (8); the adjusting screw (2) passes through the cover plate (1) and presses the cover plate (1) against the upper end of the outer cylinder (31).

2. A geotechnical engineering slope reinforcement device according to claim 1, characterized in that: The threaded ring (55) is not concentric with the connecting ring (53).

3. A geotechnical engineering slope reinforcement device according to claim 2, characterized in that: A through slot (32) is provided at the upper end of the side surface of the outer cylinder (31), the through slot (32) is slidably matched with the wire grille (6), and a cross connector (7) connected to the wire grille (6) is located inside the outer cylinder (31).

4. A geotechnical engineering slope reinforcement device according to claim 3, characterized in that: A pressure rod (33) is also provided in the through groove (32) and is slidably matched with the through groove (32) and is located at the upper end of the wire grille (6). An arc groove (34) matching the wire grille (6) is provided at the lower end of the pressure rod (33).

5. A geotechnical engineering slope reinforcement device according to claim 4, characterized in that: The cover plate (1) comprises a plate body (11); an eccentric hole (13) is provided on the plate body (11), and the eccentric hole (13) is slidably matched with the adjusting screw (2); a plurality of limit blocks (12) are also provided at the lower end of the plate body (11), and the limit blocks (12) are located on the side surfaces of the corresponding pressure rods (33).

6. A geotechnical engineering slope reinforcement device according to claim 5, characterized in that: The total height of the circular ring (41), the tensioning sheet (4) and the connecting ring (53) is greater than the height of the annular groove (36).

7. A geotechnical engineering slope reinforcement device according to claim 6, characterized in that: The height of the annular groove (36) is 0.2-0.3 times the height of the outer cylinder (31).

8. A geotechnical engineering slope reinforcement device according to claim 7, characterized in that: When the cylinder (51) slides upward until the connecting ring (53) contacts the bottom of the outer cylinder (31), the tensioning sheet (4) bends and abuts against the inner wall of the hole (8).

9. A geotechnical engineering slope reinforcement device according to claim 8, characterized in that: The pressure rods (33) are provided with four.

10. The method for using the geotechnical engineering slope reinforcement device according to claim 9, characterized in that: The method of use comprises the following steps: Step 1: Turn the adjusting screw (2) to connect it with the threaded ring (55), and then place the slide cylinder (5) vertically against the ground; Step 2: Tap the upper end of the adjusting screw (2) to embed the slide cylinder (5) and the outer cylinder (3) into the ground; Step 3: Loosen the adjusting screw (2) to disengage it from the threaded ring (55), then place the wire grille (6) into the through groove (32), and make the cross connector (7) connected to the wire grille (6) located inside the outer cylinder (31); Step 4: placing the pressure rod (33) on the upper end of the corresponding wire grid (6), and appropriately adjusting the length of the pressure rod (33) extending outside the outer cylinder (31) according to the surrounding slope; Step 5: Place the cover plate (1) on the upper end of the outer cylinder (31), then pass the adjusting screw (2) through the eccentric hole (13) and connect it to the threaded ring (55) again; Step 6: Rotate the adjusting screw (2) so that the adjusting screw (2) drives the slide tube (5) to move upward, and finally drives the tensioning sheet (4) to deform, and makes the tensioning sheet (4) close to the inner wall of the hole (8); Step 7: When it is necessary to add grout, turn the adjusting screw (2), then remove the cover plate (1), use a vacuum device to remove the loose soil in the hole (8), then inject grout into the inner wall of the outer cylinder (31) through the grouting pipe until the requirement is met, repeat step 5, and reinstall the adjusting screw (2).

Images