Multi-stage cutting high slope control excavation system close to sensitive risk source

Abstract

The utility model relates to a multi-stage cutting high slope control excavation system close to a sensitive risk source. The multi-stage cutting high slope control excavation system comprises a broken rock mass permanent and temporary combined reinforcing mesh laying supporting system, a high-altitude spraying dust falling device and a composite cement blanket auxiliary water drainage and seepage prevention structure. The two ends of the high-altitude spraying dust falling device slide on side slopes on the two sides of the road surface, the high-altitude spraying dust falling device comprises a horizontal fixing rod stretching across the road surface, and rotatable spray heads are arranged on the horizontal fixing rod at intervals. The utility model has the beneficial effects that the permanent and temporary support structure is adopted for the fractured rock mass in different areas by adopting the permanent and temporary combined reinforcement mesh laying support technology, so that the construction is convenient, and the support safety is improved; the high-altitude spraying and dust falling device is used for spraying and dust falling on an excavation area, spraying full coverage of a slope excavation working face is achieved, the slope excavation construction environment is improved, and the health of personnel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering, and in particular to a multi-level road cut high slope control excavation system near sensitive risk sources. Background Technology

[0002] Due to the special terrain constraints, high slope stability problems frequently occur in the field of engineering construction, which greatly affects the quality and safety of projects. Many construction projects have to be suspended during the construction process due to high slope instability. For the excavation of high slopes near sensitive risk sources, the excavation and support methods have very high requirements. In order to ensure construction safety, not only is a lot of money required, but the construction progress is also affected. If not handled properly, it may cause endless troubles.

[0003] In view of this, in order to address the shortcomings of previous high slope excavation construction in road cuts, there is an urgent need for a new multi-level control excavation system for high slopes in road cuts near sensitive risk sources, to improve construction efficiency, construction quality and environmental quality, and ensure the safety and reliability of the construction process. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-level road cut high slope control excavation system near sensitive risk sources.

[0005] This multi-level road cut high slope control excavation system near sensitive risk sources includes a permanent and temporary steel mesh support system for fractured rock mass, a high-altitude spray dust suppression device, and a composite cement blanket auxiliary drainage and seepage prevention structure.

[0006] The permanent and temporary combined steel mesh support system for the fractured rock mass is fixed on the fractured rock mass;

[0007] The high-altitude spray dust suppression device slides on both sides of the road slope at both ends, including a horizontal fixed rod spanning the road surface, with rotatable nozzles spaced at intervals on the horizontal fixed rod; the composite cement blanket auxiliary drainage and seepage prevention structure includes a drainage ditch, which is set on the slope, and the wall of the drainage ditch is covered with a composite cement blanket.

[0008] Preferably, the high-altitude dust suppression spray device includes a track, pulleys, a support plate, a water tank, an inclined support frame, a water pipe, a water pipe fixing ring, a rotatable nozzle, a nozzle fixing component, a horizontal fixing rod, and a water pump. A road surface is provided between the two side slopes. The track is set on the two side slopes. The pulleys are set at the bottom of the support plate. The support plate is placed on the track. The water tank is fixed on the support plate.

[0009] Preferably, the lower part of the inclined support frame is fixed to the shelf, and the upper part is connected to the horizontal fixed rod. One end of the water pipe is connected to the water pump and fixed to the horizontal fixed rod by the water pipe fixing ring. The rotatable nozzle is fixed to the water pipe by the nozzle fixing component, and the water pump is set inside the water tank.

[0010] Preferably, the permanent and temporary reinforced mesh support system for fractured rock mass includes fractured rock mass, reinforced mesh, temporary fixing bars, fixing wires, and permanent fixing rings. The fractured rock mass is located on the slope surface, the temporary fixing bars are set on the fractured rock mass at the bottom of the slope, the reinforced mesh is laid on the surface of the fractured rock mass, and the reinforced mesh is fixed to the temporary fixing bars by fixing wires or to the fractured rock mass by permanent fixing rings.

[0011] Preferably, the composite cement blanket auxiliary drainage and seepage prevention structure includes a drainage ditch, a composite cement blanket, and U-shaped nails. The drainage ditch is set on the slope, and the composite cement blanket is set on the drainage ditch by U-shaped nails.

[0012] The beneficial effects of this utility model are:

[0013] 1) This utility model adopts a permanent and temporary combined steel mesh laying support technology for fractured rock masses. It adopts permanent and temporary support structures for fractured rock masses in different areas, which is convenient for construction and improves the safety of support.

[0014] 2) This utility model uses a high-altitude spray dust suppression device to spray dust in the excavation area, achieving full coverage of the slope excavation work surface, improving the slope excavation construction environment, and ensuring the health of personnel.

[0015] 3) This utility model uses U-shaped nails to set the composite cement blanket on the drainage ditch, which is convenient and quick to use, avoids the time-consuming and labor-intensive concrete transportation and pouring, saves labor, and saves costs while ensuring construction quality. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of a permanent reinforced steel mesh support system for fractured rock masses;

[0017] Figure 2 This is a front view of the permanent reinforced steel mesh support system structure for fractured rock masses;

[0018] Figure 3 This is a front view of the high-altitude dust suppression spray device.

[0019] Figure 4 This is a side view of the structure of a high-altitude spray dust suppression device;

[0020] Figure 5 This is a front view of a composite cement blanket-assisted drainage and seepage prevention structure;

[0021] Figure 6 This is a top view of a composite cement blanket-assisted drainage and seepage prevention structure.

[0022] In the diagram: 1-slope, 2-broken rock mass, 3-steel mesh, 4-temporary fixing bar, 5-fixing wire, 6-permanent fixing ring, 7-road surface, 8-drainage ditch, 9-track, 10-pulley, 11-support plate, 12-water tank, 13-slanted support frame, 14-water pipe, 15-water pipe fixing ring, 16-rotatable nozzle, 17-nozzle fixing component, 18-horizontal fixing rod, 19-water pump, 20-composite cement blanket, 21-U-shaped nail. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0024] As one example, such as Figures 1 to 6 As shown, this multi-level road cut high slope control excavation system near sensitive risk sources includes a permanent and temporary reinforced steel mesh support system for fractured rock mass, a high-altitude spray dust suppression device, a layered and segmented skip-compartment excavation technology, and a composite cement blanket auxiliary drainage and seepage prevention structure.

[0025] The permanent and temporary combined steel mesh support system for the fractured rock mass is fixed on the fractured rock mass 2;

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the permanent and temporary combined steel mesh support system for fractured rock mass includes fractured rock mass 2, steel mesh 3, temporary fixing bars 4, fixing wires 5, and permanent fixing rings 6. The fractured rock mass 2 is on the slope 1, the temporary fixing bars 4 are set on the slope 1, and the steel mesh 3 is fixed to the temporary fixing bars 4 by fixing wires 5. The steel mesh 3 can also be fixed by permanent fixing rings 6.

[0027] The high-altitude spray dust suppression device slides on both sides of the road surface 7 and includes a horizontal fixed rod 18 that spans the road surface 7, with rotatable nozzles 16 spaced apart on the horizontal fixed rod 18.

[0028] Specifically, such as Figure 3 and Figure 4As shown, the high-altitude dust suppression spraying device includes a road surface 7, a track 9, a pulley 10, a support plate 11, a water tank 12, an inclined support frame 13, a water pipe 14, a water pipe fixing ring 15, a rotatable nozzle 16, a nozzle fixing component 17, a horizontal fixing rod 18, and a water pump 19. The road surface 7 is located between the two road cut slopes 1. The track 9 is set on the slope 1. The pulley 10 is set at the bottom of the support plate 11. The support plate 11 is placed on the track 9. The water tank 12 is fixed on the support plate 11. The lower part of the inclined support frame 13 is fixed on the support plate 11, and the upper part is connected to the horizontal fixing rod 18. One end of the water pipe 14 is connected to the water pump 19 and is fixed to the horizontal fixing rod 18 by the water pipe fixing ring 15. The rotatable nozzle 16 is fixed to the water pipe 14 by the nozzle fixing component 17. The water pump 19 is located inside the water tank 12.

[0029] The composite cement blanket-assisted drainage and seepage prevention structure includes a drainage ditch 8, which is set on the slope 1, and the wall of the drainage ditch 8 is provided with a composite cement blanket 20.

[0030] Specifically, such as Figure 5 and Figure 6 As shown, the composite cement blanket auxiliary drainage and seepage prevention structure includes a drainage ditch 8, a composite cement blanket 20, and U-shaped nails 21. The drainage ditch 8 is set on the slope 1, and the composite cement blanket 20 is set on the drainage ditch 8 by U-shaped nails 21.

Claims

1. A multi-level road cut high slope control excavation system near sensitive risk sources, characterized in that, This includes a permanent and temporary reinforced steel mesh support system for fractured rock masses, a high-altitude sprinkler dust suppression device, and a composite cement blanket-assisted drainage and seepage prevention structure; The permanent and temporary combined steel mesh support system for the fractured rock mass is fixed on the fractured rock mass; The high-altitude spray dust suppression device slides on both sides of the road slope at both ends, including a horizontal fixed rod spanning the road surface, with rotatable nozzles spaced at intervals on the horizontal fixed rod; the composite cement blanket auxiliary drainage and seepage prevention structure includes a drainage ditch, which is set on the slope, and the wall of the drainage ditch is covered with a composite cement blanket.

2. The multi-level roadbed high slope control excavation system near sensitive risk sources as described in claim 1, characterized in that, The high-altitude dust suppression spray device includes a track, pulleys, a support plate, a water tank, an inclined support frame, a water pipe, a water pipe fixing ring, a rotatable nozzle, a nozzle fixing component, a horizontal fixing rod, and a water pump. A road surface is provided between the two side slopes. The track is set on the two side slopes. The pulleys are set at the bottom of the support plate. The support plate is placed on the track. The water tank is fixed on the support plate.

3. The multi-level roadbed high slope control excavation system near sensitive risk sources as described in claim 2, characterized in that, The lower part of the inclined support frame is fixed to the shelf, and the upper part is connected to the horizontal fixed rod. One end of the water pipe is connected to the water pump and is fixed to the horizontal fixed rod by the water pipe fixing ring. The rotatable nozzle is fixed to the water pipe by the nozzle fixing component. The water pump is set inside the water tank.

4. The multi-level roadbed high slope control excavation system near sensitive risk sources as described in claim 1, characterized in that, The permanent and temporary reinforced steel mesh support system for fractured rock mass includes fractured rock mass, reinforced steel mesh, temporary fixing bars, fixing wires, and permanent fixing rings. The fractured rock mass is located on the slope surface. The temporary fixing bars are set on the fractured rock mass at the bottom of the slope. The reinforced steel mesh is laid on the surface of the fractured rock mass. The reinforced steel mesh is fixed to the temporary fixing bars by fixing wires or to the fractured rock mass by permanent fixing rings.

5. The multi-level roadbed high slope control excavation system near sensitive risk sources as described in claim 1, characterized in that, The composite cement blanket auxiliary drainage and seepage prevention structure includes a drainage ditch, a composite cement blanket, and U-shaped nails. The drainage ditch is set on the slope, and the composite cement blanket is set on the drainage ditch by U-shaped nails.

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