A road water-stabilizing layer structure for preventing cracking and subsidence

Abstract

The utility model discloses an anti-cracking and anti-settling road water-stabilizing layer structure, comprising a mixed base layer, an anti-settling mechanism and an anti-cracking mechanism. The mixed base layer is provided with a gravel cushion layer at its lower end. The anti-settling mechanism comprises a baffle, a bottom plate, a foundation pile and a connecting plate, wherein the baffle plates are respectively arranged on the left and right sides of the gravel cushion layer, the bottom plate is evenly arranged at the lower end of the baffle plates, the foundation piles are respectively arranged on the left and right sides of the lower end of the bottom plate, the connecting plates are all arranged between the relatively inner side surfaces of the two bottom plates, and the bottom middle part of the connecting plate is also provided with a foundation pile. The anti-cracking mechanism is arranged between the mixed base layer and the gravel cushion layer, and the lower end of the anti-cracking mechanism is fixedly connected to the upper end of the anti-settling mechanism. The anti-cracking and anti-settling road water-stabilizing layer structure is provided with the anti-cracking mechanism and the anti-settling mechanism, which can ensure that the water-stabilizing layer is subjected to uniform force when traffic is open, and can effectively prevent the occurrence of a situation in which the water-stabilizing layer cracks due to the settlement of the cushion layer caused by uneven force on the water-stabilizing layer.

Description

Technical Field

[0001] The utility model relates to the technical field of road water-stabilizing layers, in particular to an anti-cracking and anti-settling road water-stabilizing layer structure. Background Art

[0002] Highways are the arteries of economic development. Accelerating the construction of highway networks is of great strategic significance to promoting regional economic development, improving people's living standards and improving people's consumption. With the formation of national, provincial, and municipal trunk lines, the importance and necessity of road construction have become increasingly prominent. There are two common road structures, namely cement concrete pavement and asphalt mixture pavement. Both are composed of soil base, cushion layer, base layer and surface layer. Among them, the base layer is particularly important as a load-bearing layer. The base layer is also called the water-stabilizing layer. The water-stabilizing layer is the abbreviation of the cement-stabilized gravel layer, that is, cement-consolidated graded gravel is used. Through compaction and maintenance, the water-stabilizing layer has high strength, stiffness and stability. For asphalt pavement, the water-stabilizing layer is the main load-bearing layer of the entire road structure. It is an important structure to ensure the stability of the entire road structure. It can effectively transfer the vertical load of the road to the roadbed. The existing cement-stabilized gravel uses graded gravel as aggregate and adopts a certain amount of The cementitious material and sufficient mortar volume are used to fill the gaps in the aggregates. The mortar is spread and compacted according to the interlocking principle. Its compaction degree is close to the density. The strength mainly depends on the interlocking locking principle between the crushed stones. At the same time, there is enough mortar volume to fill the gaps in the aggregates. It has high initial strength, and the strength increases with age and quickly forms a board, so it has high strength, good impermeability and frost resistance. The amount of water-stabilizing cement is generally 3% to 6% of the mixture. The unconfined compressive strength after 7 days can reach 1.5 to 4.0 MPa, which is higher than other roadbed materials. After the water-stabilizing cement is cured, it will not be muddy when it rains, and the surface is solid. It is an ideal base material for high-grade pavement. The traditional road water-stabilizing layer has a simple structure. It is just a mixture of concrete and coarse aggregates and laid on a gravel cushion layer. After a period of traffic, the water-stabilizing layer is subjected to large forces on both sides and small forces in the middle. The forces are uneven, the cushion layers on both sides will slowly settle, and cracks will form in the middle of the water-stabilizing layer. For this reason, we propose a water-stabilizing layer structure for roads that prevents cracks and settlements. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a crack-proof and anti-settling road water-stabilizing layer structure, which is equipped with an anti-cracking mechanism and an anti-settling mechanism. When traffic is open, it can ensure that the water-stabilizing layer is evenly stressed, and can effectively prevent the occurrence of cracking of the water-stabilizing layer due to settlement of the cushion layer caused by uneven stress on the water-stabilizing layer, thereby effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-cracking and anti-settling road water-stabilizing layer structure, comprising a mixed base, an anti-settling mechanism and an anti-cracking mechanism;

[0005] Mixed base: a gravel cushion is set at the lower end;

[0006] Anti-settling mechanism: It includes baffles, bottom plates, foundation piles and connecting plates. The baffles are respectively arranged on the left and right sides of the gravel cushion layer, the bottom plates are evenly arranged at the lower end of the baffles, the foundation piles are respectively arranged on the left and right sides of the lower end of the bottom plates, the connecting plates are all arranged between the opposite inner sides of the two bottom plates, and the bottom middle of the connecting plate is also provided with foundation piles, which reduces the use of building materials and makes the upper structure more evenly stressed;

[0007] Anti-cracking mechanism: It is arranged between the mixed base layer and the gravel cushion layer. The lower end of the anti-cracking mechanism is fixedly connected to the upper end of the anti-settling mechanism. The anti-cracking mechanism and the anti-settling mechanism are provided. When the road is open to traffic, it can ensure that the water-stabilizing layer is evenly stressed, and can effectively prevent the occurrence of cracking of the water-stabilizing layer due to settlement of the cushion layer caused by uneven stress on the water-stabilizing layer.

[0008] Furthermore, evenly distributed reinforcing ribs are provided on the relatively outer sides of the baffle, and the horizontal height of the baffle is higher than the horizontal height of the gravel cushion layer, thereby improving the strength between the structure and the mechanism and preventing the gravel cushion layer from collapsing to both sides.

[0009] Furthermore, the anti-cracking mechanism includes a steel bar supporting layer, and the steel bar supporting layer is fixedly connected to the upper end of the bottom plate, so that the gravel cushion layer can form a whole.

[0010] Furthermore, the anti-cracking mechanism also includes a water-proof supporting layer, and the water-proof supporting layer is arranged on the upper end of the steel bar supporting layer, which is conducive to drainage.

[0011] Furthermore, the anti-cracking mechanism also includes fine sand and gravel, which are evenly arranged inside the gravel cushion layer, taking into account the drainage function while increasing the strength of the gravel cushion layer.

[0012] Furthermore, the anti-cracking mechanism also includes a leveling layer, and the leveling layer is arranged between the mixed base layer and the gravel cushion layer, so that the connection effect between the mixed base layer and the gravel cushion layer is better.

[0013] Furthermore, the anti-cracking mechanism also includes a steel wire mesh, which is arranged inside the mixed base layer to further prevent the water-stabilizing layer from cracking.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the anti-cracking and anti-settling road water-stabilizing layer structure has the following advantages:

[0015] First, the foundation piles are laid. After the foundation piles are laid, the bottom plate and the connecting plate are fixed on the foundation piles in turn. The two adjacent connecting plates are symmetrically distributed to form a triangular area between the two bottom plates, which reduces the use of building materials and makes the upper structure more evenly stressed. Then, the baffles are fixedly installed above the left and right sides of the bottom plate, and the ribs are strengthened to make the baffle structure stronger. A steel support layer is laid in the middle above the bottom plate and the connecting plate. Slag is filled in the gaps between the steel support layer, the bottom plate, the connecting plate and the soil base to keep the steel support layer flat. Then, a waterproof support layer is laid above the steel support layer, which can effectively drain water and prevent local settlement of the upper structure. A gravel cushion layer is laid on the waterproof support layer. The horizontal height of the gravel cushion layer is lower than the horizontal height of the baffle. The gravel cushion layer contains fine sand and gravel, and the particle size of the fine sand and gravel is smaller than that of the gravel in the gravel cushion layer. The particle size can make the fine sand and gravel fully fill the gaps between the gravel and the gravel, taking into account the drainage function while increasing the strength of the gravel cushion layer. After the gravel cushion layer is laid, the leveling layer is laid. The material of the leveling layer is coal slag to prevent water accumulation from eroding the water-stable layer. After the leveling layer is flattened, a mixed base layer is laid on top of the leveling layer. The raw materials of the mixed base layer are concrete mixed in proportion with silicate cement and graded crushed stone. The concrete is laid on top of the leveling layer, and a wire mesh is laid inside the mixed base layer to fully combine the mixed base layer with the wire mesh to further prevent the water-stable layer from cracking. After the water-stable layer is laid, an anti-cracking mechanism and an anti-settling mechanism are set to ensure that the water-stable layer is evenly stressed when the traffic is open to traffic, and can effectively prevent the water-stable layer from cracking due to settlement of the cushion layer caused by uneven stress on the water-stable layer. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the structure of the anti-settling mechanism of the utility model.

[0018] In the figure: 1 mixed base layer, 2 gravel cushion layer, 3 anti-settling mechanism, 31 baffle, 32 bottom plate, 33 foundation piles, 34 connecting plate, 4 anti-cracking mechanism, 41 wire mesh, 42 leveling layer, 43 fine sand and gravel, 44 waterproof support layer, 45 steel support layer, 5 reinforcing ribs. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2, This embodiment provides a technical solution: an anti-cracking and anti-settling road water-stabilizing layer structure, comprising a mixed base layer 1, an anti-settling mechanism 3 and an anti-cracking mechanism 4;

[0021] Mixed base layer 1: A gravel cushion layer 2 is arranged at its lower end, which provides support for the mixed base layer 1 and is also conducive to drainage;

[0022] Anti-settling mechanism 3: It includes baffles 31, bottom plates 32, foundation piles 33 and connecting plates 34. The baffles 31 are respectively arranged on the left and right sides of the gravel cushion layer 2. The bottom plates 32 are evenly arranged at the lower end of the baffles 31. The foundation piles 33 are respectively arranged on the left and right sides of the lower end of the bottom plates 32. The connecting plates 34 are all arranged between the opposite inner sides of the two bottom plates 32. The bottom middle of the connecting plate 34 is also provided with foundation piles 33, which reduces the use of building materials and makes the upper structure more evenly stressed. The opposite outer sides of the baffles 31 are provided with evenly distributed reinforcing ribs 5. The horizontal height of the baffles 31 is higher than the horizontal height of the gravel cushion layer 2, which improves the strength between the structure and the mechanism and prevents the gravel cushion layer 2 from collapsing to both sides.

[0023] The anti-cracking mechanism 4 is arranged between the mixed base layer 1 and the gravel cushion layer 2. The lower end of the anti-cracking mechanism 4 is fixedly connected to the upper end of the anti-settling mechanism 3. The anti-cracking mechanism 4 includes a steel support layer 45, which is fixedly connected to the upper end of the bottom plate 32, so that the gravel cushion layer 2 can be formed as a whole. The anti-cracking mechanism 4 also includes a water-proof support layer 44, which is arranged at the upper end of the steel support layer 45, which is conducive to drainage. The anti-cracking mechanism 4 also includes fine sand and gravel 43, which is evenly arranged inside the gravel cushion layer 2, taking into account the drainage function. It can also increase the strength of the gravel cushion layer 2. The anti-cracking mechanism 4 also includes a leveling layer 42, which is arranged between the mixed base layer 1 and the gravel cushion layer 2, so that the connection effect between the mixed base layer 1 and the gravel cushion layer 2 is better. The anti-cracking mechanism 4 also includes a wire mesh 41, which is arranged inside the mixed base layer 1 to further prevent the water-stable layer from cracking. The anti-cracking mechanism and the anti-settling mechanism can ensure that the water-stable layer is evenly stressed when the traffic is open, and can effectively prevent the occurrence of cracks in the water-stable layer due to settlement of the cushion layer caused by uneven stress on the water-stable layer.

[0024] The working principle of the anti-cracking and anti-settling road water-stabilizing layer structure provided by the utility model is as follows: when laying the road water-stabilizing layer, first measure the flattened soil base, mark the appropriate piling points and then lay the foundation piles 33. After the foundation piles 33 are laid, the bottom plate 32 and the connecting plate 34 are fixed on the foundation piles 33 in sequence. The two adjacent connecting plates 34 are symmetrically distributed so that a triangular area is formed between the two bottom plates 32, which reduces the use of building materials and makes the upper structure more evenly stressed. Then, on the left side of the bottom plate 32, the bottom plate 32 is fixed to the bottom plate 32. The baffles 31 are fixedly installed on the upper right sides, and the reinforcing ribs 5 make the baffles 31 have higher structural strength. A steel support layer 45 is laid in the middle above the bottom plate 32 and the connecting plate 34. Slag is filled in the gaps between the steel support layer 45, the bottom plate 32, the connecting plate 34 and the soil base to keep the steel support layer 45 flat. Then, a water-proof support layer 44 is laid on the steel support layer 45 to effectively drain water and prevent local settlement of the upper structure. A gravel cushion layer 2 is laid on the water-proof support layer 44. The level of the gravel cushion layer 2 is The height is lower than the horizontal height of the baffle 31. The gravel cushion layer 2 contains fine sand and gravel 43. The particle size of the fine sand and gravel 43 is smaller than the particle size of the gravel in the gravel cushion layer 2, so that the fine sand and gravel 43 can be fully filled in the gaps between the gravels, taking into account the drainage function while increasing the strength of the gravel cushion layer 2. After the gravel cushion layer 2 is laid, the leveling layer 42 is laid. The material of the leveling layer 42 is coal slag to prevent water accumulation from eroding the water-stabilizing layer. After the leveling layer 42 is flattened, a mixed base layer is laid on top of the leveling layer 42. 1. The raw material of the mixed base layer 1 is concrete mixed with silicate cement and graded crushed stone in proportion. The concrete is laid on the leveling layer 42, and a wire mesh 41 is laid inside the mixed base layer 1 to fully combine the mixed base layer 1 with the wire mesh 41 to further prevent the water-stable layer from cracking. The laying of the water-stable layer is completed, and an anti-cracking mechanism and an anti-settling mechanism are provided. When the water-stable layer is opened to traffic, uniform force can be applied to the water-stable layer, which can effectively prevent the occurrence of cracking of the water-stable layer caused by settlement of the cushion layer due to uneven force on the water-stable layer.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A road water-stabilizing layer structure for preventing cracking and subsidence, characterized in that: It comprises a mixed base layer (1), an anti-settling mechanism (3) and an anti-cracking mechanism (4); Mixed base layer (1): a gravel cushion layer (2) is arranged at the lower end thereof; The anti-settling mechanism (3) comprises a baffle (31), a bottom plate (32), a foundation pile (33) and a connecting plate (34), wherein the baffle (31) is respectively arranged on the left and right sides of the gravel cushion layer (2), the bottom plate (32) is evenly arranged at the lower end of the baffle (31), the foundation pile (33) is respectively arranged on the left and right sides of the lower end of the bottom plate (32), the connecting plate (34) is arranged between the opposite inner side surfaces of the two bottom plates (32), and the foundation pile (33) is also arranged at the middle of the bottom end of the connecting plate (34); The anti-cracking mechanism (4) is arranged between the mixed base layer (1) and the gravel cushion layer (2), and the lower end of the anti-cracking mechanism (4) is fixedly connected to the upper end of the anti-settling mechanism (3).

2. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The baffle (31) is provided with evenly distributed reinforcing ribs (5) on the relatively outer sides thereof, and the level of the baffle (31) is higher than the level of the gravel cushion layer (2).

3. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The anti-cracking mechanism (4) comprises a steel bar supporting layer (45), and the steel bar supporting layer (45) is fixedly connected to the upper end of the bottom plate (32).

4. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The anti-cracking mechanism (4) further comprises a water-proof supporting layer (44), wherein the water-proof supporting layer (44) is arranged at the upper end of the steel bar supporting layer (45).

5. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The anti-cracking mechanism (4) further comprises fine sand and gravel (43), and the fine sand and gravel (43) are evenly arranged inside the gravel cushion layer (2).

6. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The anti-cracking mechanism (4) further comprises a leveling layer (42), wherein the leveling layer (42) is arranged between the mixed base layer (1) and the gravel cushion layer (2).

7. The anti-cracking and anti-settling road water-stabilizing layer structure according to claim 1 is characterized by: The anti-cracking mechanism (4) further comprises a steel wire mesh (41), wherein the steel wire mesh (41) is arranged inside the mixed base layer (1).

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