Structure suitable for freezing type pavement maintenance of strip mine in winter

Abstract

The utility model discloses a frozen pavement maintenance structure suitable for strip mine in winter, a pavement comprises an original base layer, a crushed stone layer, a crushed material layer, a frozen material layer, a stress absorption layer and a surface material layer, the stress absorption layer is arranged below the surface material layer, the frozen material layer is arranged below the stress absorption layer, the crushed material layer is paved below the frozen material layer, and the crushed stone layer is paved below the frozen material layer. A crushed stone layer is laid below the crushed material layer, a surface material layer is arranged below the crushed stone layer, and an original base layer is arranged below the crushed material layer. The device can save time and energy, improve equipment efficiency, reduce influence on other equipment, reduce production cost, fully and reasonably reduce road running operation time waste of the large mine car, effectively enable each driver to quickly improve the carrying capacity, reduce falling of floating stones on the road, reduce puncture of tires, and improve the working efficiency of the large mine car. And accidents such as vehicle scraping, collision, rolling and falling can be reduced to the greatest extent during operation, and the safety cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a structure suitable for freezing-type road surface maintenance in open-pit mines in winter. Background Art

[0002] Our company's original road maintenance adopts a double-layer or three-layer road pavement structure. Double-layer refers to two layers of base and surface layer; three-layer refers to three layers of base, roadbed and surface layer. 212 Construction of roadbed and road surface: The road construction in the original rock section adopts a double-layer road pavement structure, the base thickness is 200-500mm, and the crushed stone with a particle size of 150-200mm from the road material station is used for paving; the surface layer thickness is 150-300mm, and the crushed stone with a particle size of 20-80mm from the road material station is used for paving. The road construction in the weathered section adopts a three-layer road pavement structure, the base thickness is 300-500mm, and the original rock is used as the road material; the roadbed thickness is 150-300mm, and the crushed stone with a particle size of 150-200mm from the road material station is used for paving; the surface layer thickness is 100-300mm, and the crushed stone with a particle size of 20-80mm from the road material station is used for paving. Subgrade and pavement of branch roads: Road structure Subgrade road structure is divided into single-layer and three-layer forms. Single-layer pavement is to lay only one surface layer on the subgrade. The three-layer is divided into three layers: base layer, roadbed and surface layer. Construction of subgrade and pavement In the original rock section, a single-layer pavement structure is used for road construction, and the surface layer thickness is 100-300mm, and crushed stones with a particle size of 20-80mm are used for paving. In the weathered section, a three-layer pavement structure is used for road construction, and the base layer thickness is 300-500mm, and original rock is used as the road material; the roadbed thickness is 150-300mm, and crushed stones with a particle size of 150-200mm are used for paving; the surface layer thickness is 100-300mm, and crushed stones with a particle size of 20-80mm are used for paving. The road surface repaired in this way does not have sufficient strength, is very likely to cause large rocks to be exposed, the road surface is prone to wave formation, and the tires of large mining trucks are seriously worn. Therefore, the utility model provides a structure suitable for open-pit mines to use freezing road surface repair in winter to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a structure suitable for open-pit mines to repair road surfaces by freezing in winter, so as to solve the problems in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structure suitable for freezing-type road surface maintenance in open-pit mines in winter, the road surface comprising an original base layer, a crushed stone layer, a crushed material layer, a frozen material layer, a stress absorption layer and a surface material layer, a stress absorption layer is provided below the surface material layer, a frozen material layer is provided below the stress absorption layer, and a crushed material layer is laid below the frozen material layer, a crushed stone layer is laid below the crushed material layer, a surface material layer is provided below the crushed stone layer, and the original base layer is below the crushed material layer.

[0005] Preferably, as a preferred embodiment of the utility model, the pavement is a large-scale ore transport vehicle pressure-bearing pavement structure, and the thickness of the pavement structure is 600-800 mm.

[0006] Preferably, as a preferred embodiment of the present invention, the crushed material layer is a filling material of a crushing station with a particle size of 30-50 mm.

[0007] Preferably, as a preferred embodiment of the present invention, the frozen material layer is made of fine stones with a particle size of 5-20 mm mixed with water.

[0008] Preferably, as a preferred embodiment of the present invention, the fabric layer 5 is made of a mixture of fine soil and water.

[0009] Preferably, as a preferred embodiment of the present invention, the original base layer 1 is the original road surface after the open-pit mine blasting is completed and mined by an electric shovel.

[0010] Preferably, as a preferred embodiment of the present invention, the crushed stone layer 2 is generally made of waste material with a particle size of 200-300 mm after blasting in the mining area.

[0011] Preferably, as a preferred embodiment of the present invention, the stress absorbing layer 5 is a stress absorbing film, and adhesive layers are provided on the upper and lower sides of the stress absorbing layer 5 .

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can save time, save energy, improve equipment efficiency, reduce the impact on other equipment, and reduce production costs.

[0014] 2. The utility model can fully and reasonably reduce the time wasted by large-scale ore transport vehicles on the road, effectively allowing each driver to quickly increase the pulling capacity, reduce the falling of floating stones on the road, reduce the puncture of tires, and minimize the accidents of vehicle scraping, crushing, falling, etc. during operation, and the safety cost will be greatly reduced. The hauling efficiency of ore transport vehicles is maximized, labor costs and equipment consumption are reduced, vehicle coordination is optimized, and equipment waste caused by road driving of ore transport vehicles is reduced, providing reference value for winter maintenance roads of open-pit mines at home and abroad. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 The utility model is a schematic diagram of the structure of the open-pit mine using freezing-type road surface maintenance in winter.

[0017] In the figure: 1. Original base layer; 2. Crushed stone layer; 3. Crushed material layer; 4. Frozen material layer; 5. Stress absorbing layer; 6. Fabric layer. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The meaning of "multiple" in the present utility model is two or more, and unless otherwise clearly and specifically limited, they all fall within the scope of protection of the present utility model.

[0021] Example: Figure 1-2 , the utility model provides a technical solution: including:

[0022] The road surface includes an original base layer 1, a crushed stone layer 2, a crushed material layer 3, a frozen material layer 4, a stress absorption layer 5 and a surface layer 6. The stress absorption layer 5 is provided below the surface layer 6, the frozen material layer 4 is provided below the stress absorption layer 5, and the crushed material layer 3 is laid below the frozen material layer 4, the crushed stone layer 2 is laid below the crushed stone layer 2, the surface layer 6 is provided below the crushed stone layer 2, and the original base layer 1 is provided below the crushed material layer 3.

[0023] The road surface is a large-scale ore transport truck pressure-bearing road surface structure, and the thickness of the road surface structure is 600-800mm.

[0024] Crushed material layer 3 is the filling material of the crushing station with a particle size of 30-50mm.

[0025] The frozen material layer 4 is made of fine stones with a particle size of 5-20 mm mixed with water.

[0026] The fabric layer (5) is made of a mixture of fine soil and water.

[0027] The original base layer (1) is the original road surface after the open-pit mine is blasted and mined by an electric shovel.

[0028] The crushed stone layer (2) is generally made of waste material with a particle size of 200-300 mm after blasting in the mining area.

[0029] The stress absorbing layer (5) is a stress absorbing film, and adhesive layers are provided above and below the stress absorbing layer (5).

[0030] For the convenience of construction, further, in the above scheme: the surface layer is mainly covered by the above steps to ensure that there are no stones exposed on the road surface to pierce the tires. At the same time, the surface layer is made of a mixture of fine soil and water, which is pushed open by a bulldozer or loader, and then quickly scraped and leveled by a road grader, and quickly compacted by a roller, so as to ensure the maintenance quality of the road.

[0031] The safety effect after application: On the one hand, it can improve the operating efficiency of large-scale ore transporters, ensure the safety of large-scale ore transporters on the road and the safe operation of drivers, reduce the crack damage to the vehicle body and the aggravation of tire wear caused by the up and down resonance of the ore transporter caused by waves, improve the operating efficiency of the ore transporter, reduce the labor intensity of the driver, and reduce fatigue. This road maintenance method reduces the formation of table waves, tire punctures, fuel waste and other abnormal wear of ore transporters; on the other hand, it can also ensure the safety of ore transporters at night, effectively prevent the ore transporter from swinging too much on the road surface, thereby preventing the ore transporter from dropping stones and puncturing the tires of the ore transporter behind, and other safety problems.

[0032] The beneficial effects of using this mining field, a structure suitable for open-pit mines to use frozen road maintenance in winter, are: on the one hand, it can save time, save energy, improve equipment efficiency, reduce the impact on other equipment, and reduce production costs; on the other hand, it can fully and reasonably reduce the waste of road operation time of large-scale ore transport vehicles, and can effectively allow each driver to quickly increase the pulling capacity, reduce the falling of floating stones on the road, reduce tire punctures, and minimize vehicle scraping, crushing, falling and other accidents during operation, and the safety cost will be greatly reduced. Maximize the pulling efficiency of ore transport vehicles, reduce labor costs and equipment consumption, optimize vehicle coordination, and reduce equipment waste caused by road driving of ore transport vehicles, providing reference value for winter maintenance roads in open-pit mines at home and abroad.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A structure suitable for open-pit mines using frozen road surface maintenance in winter, characterized in that: The pavement comprises an original base layer (1), a crushed stone layer (2), a crushed material layer (3), a frozen material layer (4), a stress absorption layer (5) and a surface layer (6), wherein a stress absorption layer (5) is arranged below the surface layer (6), a frozen material layer (4) is arranged below the stress absorption layer (5), a crushed material layer (3) is laid below the frozen material layer (4), a crushed stone layer (2) is laid below the crushed material layer (3), a surface layer (6) is arranged below the crushed stone layer (2), and the original base layer (1) is arranged below the crushed material layer (3).

2. The structure according to claim 1, which is suitable for open-pit mines to repair pavement using freezing method in winter, is characterized in that: The road surface is a large-scale ore transport vehicle pressure-bearing road surface structure, and the thickness of the road surface structure is 600-800mm.

3. The structure according to claim 1, which is suitable for open-pit mines to repair pavement by freezing in winter, is characterized in that: The crushed material layer (3) is a filling material of the crushing station with a particle size of 30-50 mm.

4. The structure for frozen road surface maintenance in open-pit mines in winter according to claim 1, characterized in that: The frozen material layer (4) is made of fine stones with a particle size of 5-20 mm mixed with water.

5. The structure for frozen road surface maintenance in open-pit mines in winter according to claim 1, characterized in that: The fabric layer (6) is made of a mixture of fine soil and water.

6. The structure for frozen road surface maintenance in open-pit mines in winter according to claim 1, characterized in that: The original base layer (1) is the original road surface after the open-pit mine is blasted and mined by an electric shovel.

7. The structure for frozen road surface maintenance in open-pit mines in winter according to claim 1, characterized in that: The crushed stone layer (2) is generally made of waste material with a particle size of 200-300 mm after blasting in the mining area.

8. The structure for frozen road surface maintenance in open-pit mines in winter according to claim 1, characterized in that: The stress absorbing layer (5) is a stress absorbing film, and adhesive layers are provided above and below the stress absorbing layer (5).

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