Slope protection drain hole mounting structure

Abstract

The utility model discloses a slope protection drain hole mounting structure. The structure comprises a drain pipe; the expansion ring is slidably sleeved outside the water drain pipe in a clearance fit manner; and the extrusion ring A and the extrusion ring B are correspondingly and slidably sleeved outside the water drain pipe at two ends of the expansion ring in an interference manner. The extrusion ring B extrudes the expansion ring and pushes the expansion ring to the extrusion ring A, so that the expansion ring elastically expands and is clamped at the drain hole of the foundation concrete spraying layer, the drain pipe is limited in the drain hole of the foundation concrete spraying layer, the extrusion ring B is flush with the drain hole, and the extrusion ring A, the extrusion ring B and the expansion ring which extrudes and expands are located in the drain hole and cannot collide with falling rocks; the water drain pipe is always limited in the water drain hole to be in a stable state, and the problem that limiting rods extending outwards are prone to breakage and lose the supporting effect when collided by falling rocks during limiting supporting is solved.

Description

Technical Field

[0001] The utility model relates to a slope protection drain hole installation structure, belonging to the technical field of slope construction. Background Art

[0002] After the slope excavation is completed to the designed slope surface, the slope is loosened due to vibration during blasting and mechanical excavation, so a protective body of foundation sprayed concrete layer + steel bar sprayed concrete layer needs to be constructed on the slope. After the foundation sprayed concrete layer of the slope is formed, drainage holes need to be opened in the foundation sprayed concrete layer and drainage pipes need to be installed to drain water.

[0003] When the drain pipe is installed in the drain hole of the foundation sprayed concrete layer, since the drain hole is mechanically opened with a large size, the drain pipe needs to be limited when installed in the drain hole. The existing technology of limiting the drain pipe in the drain hole is shown in the Chinese patent announcement number CN117905075A. The disclosed technology is that the limit sleeve outside the drain pipe is supported by the limit rod; although the drain pipe can be limited, the limit rod extends outward from the outside of the limit sleeve. When in use, the limit rod extending outward is easily broken by the collision of falling rocks and loses its supporting function. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a slope protection drain hole installation structure.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a slope protection drain hole installation structure, comprising:

[0007] drain pipe;

[0008] An expansion ring that can be slidably sleeved on the outside of the drain pipe with a clearance fit;

[0009] The extrusion ring A and the extrusion ring B are correspondingly interference fit and can be slidably sleeved on the outside of the drain pipes at both ends of the expansion ring.

[0010] It also includes a foundation sprayed concrete layer provided with a drainage hole, the middle part of the expansion ring is clamped at the drainage hole of the foundation sprayed concrete layer, and the extrusion ring B is flush with the drainage hole.

[0011] The expansion ring is made of elastic rubber.

[0012] The extrusion ring A and the extrusion ring B are steel plates.

[0013] The outside of the expansion ring is integrally formed with blocking protrusions that are fixedly connected, and the blocking protrusions are distributed outside the expansion ring in a circumferential array at intervals.

[0014] The extrusion ring A and the extrusion ring B are both fixedly connected with force-bearing feet extending into the expansion ring, and the force-bearing feet are multiple and spaced apart in a circular array.

[0015] The beneficial effects of the utility model are as follows: the extrusion ring B extrudes the expansion ring and pushes it toward the extrusion ring A, so that the expansion ring elastically expands and is stuck in the drainage hole of the foundation sprayed concrete layer, the drainage pipe is limited in the drainage hole of the foundation sprayed concrete layer, and the extrusion ring B is flush with the drainage hole, so that the extrusion ring A, the extrusion ring B and the extruded and expanded expansion ring are in the drainage hole and will not collide with falling rocks, so that the drainage pipe is always limited in the drainage hole and presents a stable state, which solves the problem that the limiting support using the limiting rod extending outward is easily broken and loses the supporting function when hit by falling rocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the distribution structure of the utility model during slope construction;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model when the pedal is installed;

[0018] Figure 3 It is a structural schematic diagram of the pedal assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the expansion ring of the utility model when it is expanded;

[0020] Figure 5 It is a structural schematic diagram of the prior art pedal installation;

[0021] In the figure: 1-drain pipe; 11-expansion ring; 12-extrusion ring A; 13-extrusion ring B; 14-stress foot; 15-blocking protrusion; 2-foundation sprayed concrete layer; 21-drain hole; 3-slope; 31-soil nail; 32-pedal; 33-groove; 41-small deformation plate; 42-large deformation plate; 43-rivet; 51-mounting seat; 52-screw; 53-claw; 54-nut; 55-slot; 56-rebar. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0023] like Figures 1 to 4 shown.

[0024] A slope protection drain hole installation structure of the present application includes:

[0025] The expansion ring 11 is made of elastic rubber, and the extrusion ring A12 and the extrusion ring B13 are made of steel plates. The expansion ring 11 is integrally formed with a blocking protrusion 15 fixedly connected to the outside. The blocking protrusion 15 is distributed in a circumferential array at intervals outside the expansion ring 11.

[0026] The expansion ring 11 can be slidably sleeved on the outside of the drain pipe 1 with clearance fit, and the extrusion ring A12 and the extrusion ring B13 can be slidably sleeved on the outside of the drain pipe 1 at both ends of the expansion ring 11 with corresponding interference fit. The extrusion ring A12 and the extrusion ring B13 both have force-bearing feet 14 extending into the expansion ring 11, and the force-bearing feet 14 are multiple and spaced in a circumferential array. Multiple force-bearing feet 14 can make the middle part of the expansion ring 11 expand and bulge outward when it is squeezed.

[0027] The extrusion ring A12 is located at the root of the drainage pipe 1 and installed in the drainage hole 21 of the foundation sprayed concrete layer 2. The extrusion ring B13 squeezes the expansion ring 11 and pushes it toward the extrusion ring A12, so that the expansion ring 11 elastically expands and is stuck at the drainage hole 21 of the foundation sprayed concrete layer 2. Since the extrusion ring A12 and the extrusion ring B13 are interference fit outside the drainage pipe 1, the expansion ring 11 elastically expands and does not rebound. The drainage pipe 1 is limited in the drainage hole 21 of the foundation sprayed concrete layer 2. At this time, the extrusion ring B13 is flush with the drainage hole 21, so that the extrusion ring A12, the extrusion ring B13 and the extruded and expanded expansion ring 11 are in the drainage hole 21 and will not collide with falling rocks, so that the drainage pipe 1 is always limited in the drainage hole 21 and presents a stable state, solving the problem that the limiting support using the limiting rod extending outward is easily broken and loses its supporting function when hit by falling rocks.

[0028] A construction scaffold for slope protection in the present application comprises:

[0029] A pedal 32 with a small deformation plate 41 is fixedly installed at the bottom, and a large deformation plate 42 is installed between the pedal 32 and the small deformation plate 41. The deformation of the large deformation plate 42 is greater than that of the small deformation plate 41; the small deformation plate 41 and the pedal 32 are fixed by rivets 43. The small deformation plate 41 is made of a discarded tire outer tyre, which is hard, small in deformation and wear-resistant; the large deformation plate 42 is made of a raw rubber plate or a sponge plate, which is soft, large in deformation and not wear-resistant.

[0030] After the bottom of the pedal 32 with the small deformation plate 41 is pressed on the two soil nails 31, the large deformation plate 42 is greatly deformed and the small deformation plate 41 is slightly deformed, so that a groove 33 can be formed at any position on the bottom of the pedal 32 to be installed in contact with the two soil nails 31 to limit the position, avoiding the situation where the pedal 32 is directly placed on the two soil nails 31 and the contact friction limit firmness is unstable, which is beneficial to the safety of the operator standing on the pedal 32.

[0031] Two spaced mounting seats 51 are fixedly mounted on the top surface of the pedal 32, and a screw 52 is fixedly mounted on the mounting seat 51. Two spaced claws 53 are slidably and rotatably mounted on the screw 52. The bottom of the claw 53 is limited by two symmetrically distributed nuts 54. The two nuts 54 are screwed on the screw 52 to clamp the bottom of the claw 53. When the two nuts 54 are screwed on the screw 52 without clamping the claw 53, the claw 53 can slide and rotate on the screw 52. A slot 55 is provided on the top of the claw 53 to engage with a steel bar 56. The two claws 53 can adjust and engage with the two steel bars 56 to further limit the pedal 32.

[0032] A slope protection construction method of the present application includes:

[0033] Step 1: constructing a standing environment: the large deformable plate 42 at the bottom of the pedal 32 is installed with the small deformable plate 41 in contact with the two soil nails 31 to form a groove 33 limit, and the two claws 53 and the groove 55 are engaged with the steel bar 56. The pedal 32 constructs a standing environment on the two soil nails 31. When the pedal 32 is installed, the pedal 32 is installed on the soil nails 31 in two pieces simultaneously or alternately, and the operator can step on the two pedals 32 alternately; the next step of construction is carried out when the bottom of the pedal 32 is limited and stable.

[0034] Step 2, installation of the drain pipe 1: the drain pipe 1 installed with the expansion ring 11, the extrusion ring A12 and the extrusion ring B13 is pressed into the drain hole 21 of the foundation sprayed concrete layer 2, the extrusion ring A12 is at the root of the drain hole 21, and the extrusion ring B13 squeezes the expansion ring 11 and pushes it toward the extrusion ring A12, so that the expansion ring 11 elastically expands and is stuck in the drain hole 21 of the foundation sprayed concrete layer 2. The expansion ring 11 limits the drain pipe 1 in the drain hole 21 of the foundation sprayed concrete layer 2. At this time, the extrusion ring B13 is flush with the drain hole 21; the pedal 32 is removed from the soil nail 31, and then concrete is sprayed into the steel bar 56 to cover it to form a steel sprayed concrete layer, ensuring that the drain pipe 1 runs through the foundation sprayed concrete layer 2 and the steel sprayed concrete layer to play a role in drainage and pressure relief.

Claims

1. A slope protection drain hole installation structure, characterized in that: include: Drain pipe (1); An expansion ring (11) which is loosely fitted and can be slidably sleeved on the outside of the drain pipe (1); The extrusion ring A (12) and the extrusion ring B (13) are correspondingly interference fit and can be slidably sleeved on the outside of the drain pipe (1) at both ends of the expansion ring (11).

2. The slope protection drain hole installation structure according to claim 1, characterized in that: It also includes a foundation sprayed concrete layer (2) provided with a drainage hole (21), the middle part of the expansion ring (11) is clamped at the drainage hole (21) of the foundation sprayed concrete layer (2), and the extrusion ring B (13) is flush with the drainage hole (21).

3. The slope protection drain hole installation structure according to claim 1, characterized in that: The expansion ring (11) is made of elastic rubber.

4. The slope protection drain hole installation structure according to claim 1, characterized in that: The extrusion ring A (12) and the extrusion ring B (13) are steel plates.

5. The slope protection drain hole installation structure according to claim 1, characterized in that: The expansion ring (11) is integrally formed with a blocking protrusion (15) fixedly connected to the outside, and the blocking protrusions (15) are distributed in a circumferential array at intervals outside the expansion ring (11).

6. The slope protection drain hole installation structure according to claim 1, characterized in that: The extrusion ring A (12) and the extrusion ring B (13) are both fixedly connected with force-bearing feet (14) extending into the expansion ring (11), and the force-bearing feet (14) are multiple and spaced apart in a circumferential array.

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