Construction treading frame for slope protection

Abstract

The utility model discloses a construction treading frame for slope protection. The construction treading frame comprises a pedal for an operator to tread; a small deformation plate is fixedly installed at the bottom of the pedal, a large deformation plate is installed between the pedal and the small deformation plate, and the deformation amount of the large deformation plate is larger than that of the small deformation plate. A groove can be formed at any position of the bottom of the pedal to be in limiting contact with two soil nails, so that the situation that the pedal is directly placed on the two soil nails to be in contact friction with the two soil nails, and the limiting firmness is not stable is avoided, and the safety of an operator standing on the pedal is improved; the problem that safety is poor during slope protection construction due to the fact that a pedal is located on two soil nails and is unstable in firmness is solved.

Description

Technical Field

[0001] The utility model relates to a construction step frame for slope protection, 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 installing the drainage pipe in the drainage hole of the foundation sprayed concrete layer, the operator needs to have a standing environment to operate. The prior art adopts the method of setting up an operating frame to obtain a standing environment (see Chinese patent announcement number CN215669582U). However, the construction period of the operating frame set up on the entire slope is long and the dismantling is later. Driving multiple soil nails 31 into the slope 3 through the foundation sprayed concrete layer 2 and placing pedals 32 on two soil nails 31 can obtain a standing environment and avoid the long construction period of dismantling the operating frame. Figure 5 However, when placing the pedal 32 directly on the two soil nails 31, due to the contact and friction between the pedal 32 and the soil nails 31, there is a problem that the pedal is not stable on the two soil nails, resulting in poor safety during slope protection construction. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a construction step frame for slope protection.

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

[0006] The utility model provides a construction step frame for slope protection, comprising:

[0007] A pedal for operators to step on;

[0008] A small deformation plate is fixedly installed at the bottom of the pedal, and a large deformation plate is installed between the pedal and the small deformation plate. The deformation amount of the large deformation plate is greater than the deformation amount of the small deformation plate.

[0009] The small deformation plate and the pedal are fixed by rivets.

[0010] The small deformation plate is formed by discarded tire outer casing.

[0011] The large deformation plate is made of a raw rubber plate or a sponge plate.

[0012] Two spaced-apart mounting seats are fixedly mounted on the top surface of the pedal, a screw is fixedly mounted on the mounting seat, and two spaced-apart clamping claws are slidably and rotatably mounted in the gap on the screw; a clamping groove engaged with a steel bar is provided on the top of the clamping claw.

[0013] Two symmetrically distributed nuts are screwed on the screw rod, and the two nuts are screwed on the screw rod to clamp the bottom of the clamping claw.

[0014] The beneficial effect of the utility model is that a groove can be formed at any position on the bottom of the pedal to contact and install with two soil nails, avoiding the situation where the pedal is directly placed on the two soil nails and the contact friction limit is unstable, which is beneficial to the safety of the workers standing on the pedal and solves the problem of poor safety during slope protection construction due to the unstable firmness of the pedal on the two soil nails. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the distribution structure of the utility model during slope construction;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model when the pedal is installed;

[0017] Figure 3 It is a structural schematic diagram of the pedal assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the expansion ring of the utility model when it is expanded;

[0019] Figure 5 It is a structural schematic diagram of the prior art pedal installation;

[0020] 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

[0021] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0022] like Figures 1 to 4 shown.

[0023] A slope protection drain hole installation structure of the present application includes:

[0024] 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.

[0025] The expansion section 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 section 11 with corresponding interference fit, and the extrusion ring A12 and the extrusion ring B13 both have force-bearing feet 14 extending into the expansion section 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 section 11 expand and bulge outward when it is squeezed.

[0026] The extrusion ring A12 is located at the root of the drain pipe 1 and installed in the drain 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 in the drain hole 21 of the foundation sprayed concrete layer 2. Since the extrusion ring A12 and the extrusion ring B13 are interference fit outside the drain pipe 1, the expansion ring 11 elastically expands and does not rebound. The drain pipe 1 is limited 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, so that the extrusion ring A12, the extrusion ring B13 and the extruded and expanded expansion ring 11 are in the drain hole 21 and will not collide with the falling rocks, so that the drain pipe 1 is always limited in the drain hole 21 and presents a stable state.

[0027] A construction scaffold for slope protection in the present application comprises:

[0028] 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.

[0029] 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 of the bottom of the pedal 32 to be installed in limited contact with the two soil nails 31, 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 workers standing on the pedal 32, and solves the problem of poor safety during slope protection construction caused by the unstable firmness of the pedal on the two soil nails.

[0030] 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.

[0031] A slope protection construction method of the present application includes:

[0032] 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.

[0033] Step 2, installation of the drain pipe 1: the drain pipe 1 equipped with the expansion section 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, 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 construction scaffold for slope protection, characterized in that: include: A pedal (32) for an operator to step on; A small deformation plate (41) is fixedly mounted on the bottom of the pedal (32), a large deformation plate (42) is mounted between the pedal (32) and the small deformation plate (41), and the deformation amount of the large deformation plate (42) is greater than the deformation amount of the small deformation plate (41).

2. The construction scaffold for slope protection according to claim 1, characterized in that: The small deformation plate (41) and the pedal (32) are fixed by rivets (43).

3. The construction scaffold for slope protection according to claim 1, characterized in that: The small deformation plate (41) is made of discarded tire casing.

4. The construction scaffold for slope protection according to claim 1, characterized in that: The large deformation plate (42) is made of a raw rubber plate or a sponge plate.

5. The construction scaffold for slope protection according to claim 1, characterized in that: Two spaced mounting seats (51) are fixedly mounted on the top surface of the pedal (32); a screw rod (52) is fixedly mounted on the mounting seat (51); two spaced claws (53) are slidably and rotatably mounted in the gap on the screw rod (52); and a slot (55) for engaging with a steel bar (56) is provided on the top of the claw (53).

6. The construction scaffold for slope protection according to claim 5, characterized in that: Two symmetrically distributed nuts (54) are screwed onto the screw rod (52), and the two nuts (54) are screwed onto the bottom of the clamping claw (53) on the screw rod (52).

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