Scouring-resistant conical slope structure

Abstract

The utility model discloses a scouring-resistant cone slope structure, which relates to the technical field of road and bridge engineering, and comprises a cone foundation, a cone slope and a slope top, and further comprises concrete layers, the concrete layers are formed by pouring ultra-high performance concrete and are arranged at the junction of the cone foundation and the cone slope and the junction of the cone slope and the slope top, bent reinforcing steel bars are embedded in the concrete layers, and the bent reinforcing steel bars are embedded in the concrete layers. And the two ends of the bent reinforcing steel bar respectively extend into the cone base and the cone slope or the two ends of the bent reinforcing steel bar respectively extend into the slope top and the cone slope. The concrete layers are arranged at the junction of the cone foundation and the cone slope and the junction of the cone slope and the slope top, the concrete layers have good compactness and can prevent water flow from entering the cone slope, and the bent steel bars are combined with the concrete layers so that the connecting capacity of the cone foundation and the cone slope and the connecting capacity of the cone slope and the slope top can be effectively enhanced. And the cone base and the cone slope as well as the cone slope and the slope top can be stressed together.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge engineering, in particular to a scouring-resistant cone slope structure. Background Art

[0002] Cone slope refers to the conical slope protection built at the junction of the bridge culvert and the roadbed to protect the embankment slope from erosion. Its main functions include: protecting the embankment and preventing the slope from being eroded and eroded by water flow; stabilizing the slope and increasing the stability of the slope; guiding the water flow so that the water flow passes smoothly and reduces the impact of the water flow on the embankment. In road and bridge engineering, the cone slope is an important protective structure and is of great significance to ensuring the safety and stability of the road.

[0003] Traditional cone slopes are usually constructed with cement mortar. The problem is that the cement mortar itself has large gaps inside, and cracks will also form during the construction process. This makes it easy for water to penetrate into the cone slope after it is formed, causing partial collapse and subsidence of the cone slope, posing a major safety hazard.

[0004] In view of this, how to provide a cone slope structure that can solve the above technical problems is a technical problem that people in this field need to solve urgently. Utility Model Content

[0005] The utility model aims to provide a scour-resistant cone slope structure to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the utility model provides the following solutions: The utility model provides a scour-resistant cone slope structure, including a cone base, a cone slope and a slope top, and also includes:

[0007] A concrete layer is formed by pouring ultra-high performance concrete and is arranged at the junction of the cone base and the cone slope and at the junction of the cone slope and the slope top. Bending steel bars are embedded in the concrete layer, and two ends of the bending steel bars extend into the cone base and the cone slope respectively, or two ends of the bending steel bars extend into the slope top and the cone slope respectively.

[0008] Furthermore, there are a plurality of bent steel bars, and the lateral spacing between adjacent bent steel bars is 50 cm.

[0009] Furthermore, a plurality of hexagonal concrete blocks are evenly spaced on the surface of the cone slope, and ultra-high performance mortar is poured between adjacent hexagonal concrete blocks to form a mortar layer. The hexagonal concrete blocks and the mortar layer constitute a concrete mortar cone slope layer, and one end of the bent steel bar extends into the concrete mortar cone slope layer.

[0010] Furthermore, a concrete frame is provided between the cone slope surface and the concrete mortar cone slope layer; one end of the bent steel bar extends into the concrete mortar cone slope layer, or one end of the bent steel bar extends into the concrete frame.

[0011] Furthermore, a fine stone concrete layer is provided on the top of the slope, and the other end of the bent steel bar extends into the fine stone concrete layer.

[0012] Furthermore, it also includes:

[0013] A stepped frame slope-fixing structure, wherein the stepped frame slope-fixing structure is fixedly arranged on the base of the conical slope;

[0014] An oblique brace is arranged on the left and right sides of the stepped frame slope fixing structure, one end of which is fixedly connected to the stepped frame slope fixing structure, and the other end of which extends downward and is fixedly connected to the base of the cone slope.

[0015] Furthermore, it also includes: micro piles, which are vertically buried below the base of the cone slope, and the top surface of the micro piles is connected to the lower surface of the stepped frame slope fixing structure.

[0016] Furthermore, there are a plurality of the stepped frame slope-fixing structures, and the plurality of the stepped frame slope-fixing structures are arranged in sequence in a horizontal direction in order of height, and the lower stepped frame slope-fixing structures are arranged close to the conical slope.

[0017] Furthermore, the cone base is a trapezoidal structure that is narrow at the top and wide at the bottom.

[0018] The utility model discloses the following technical effects:

[0019] 1. A concrete layer is set at the junction of the cone base and the cone slope, as well as at the junction of the cone slope and the slope top. The concrete layer has good density and can prevent water from entering the cone slope. The bent steel bars combined with the concrete layer can effectively strengthen the connection between the cone base and the cone slope, as well as the cone slope and the slope top, so that the cone base and the cone slope, as well as the cone slope and the slope top can bear force together.

[0020] 2. Hexagonal concrete blocks are arranged on the surface of the cone slope and mortar is poured to form a concrete mortar cone slope layer. After the concrete mortar cone slope layer is formed, it has good compression resistance, tension resistance and penetration resistance. When water vapor penetrates into the cracks, it can continue to hydrate with a large amount of unhydrated clinker to produce hydrates to seal the cracks. On the one hand, it can effectively resist the erosion of the cone slope by water flow, and on the other hand, it has a certain self-healing ability of micro-cracks.

[0021] 3. A stepped frame slope-fixing structure arranged from low to high is arranged inside the cone slope. The stepped frame slope-fixing structure can fix the soil below the cone slope. Generally, the damage of the cone slope is caused by the collapse of the lower soil after being eroded and hollowed out. The stepped frame structure is used to fix the soil, so even if it collapses, it will not collapse completely, thereby improving the stability of the cone slope structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0025] Figure 3 This is the layout diagram of the stepped frame slope-fixing structure;

[0026] Figure 4 This is a schematic diagram of a concrete frame structure;

[0027] Figure 5 It is a schematic diagram of the concrete mortar cone slope structure;

[0028] Among them, 1. cone base; 2. bent steel bars; 3. concrete frame; 4. concrete mortar cone slope layer; 401. hexagonal concrete blocks; 402. mortar layer; 5. concrete layer; 6. fine stone concrete layer; 7. stepped frame slope fixing structure; 8. diagonal braces; 9. micro piles. DETAILED DESCRIPTION

[0029] 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.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1-Figure 5The utility model provides an erosion-resistant cone slope structure, including a cone base 1, a cone slope and a slope top. The cone base 1 is a trapezoidal structure that is narrow at the top and wide at the bottom, which can make the cone base 1 more stable and better resist the slippage caused by the cone slope. It also includes: a concrete layer 5, which is arranged at the junction of the cone base 1 and the cone slope and at the junction of the cone slope and the slope top. The concrete layer 5 is embedded with bent steel bars 2, and the two ends of the bent steel bars 2 extend into the cone base 1 and the cone slope respectively, or the two ends of the bent steel bars 2 extend into the slope top and the cone slope respectively. The concrete layer 5 is formed by pouring ultra-high performance concrete, and the ultra-high performance concrete components mainly include cement, quartz sand, silica fume and other gel materials, admixtures such as high-efficiency water reducers, steel fibers, and aggregates with a particle size of less than 10 mm.

[0032] In this embodiment, there are a plurality of bent steel bars 2, and the lateral spacing between adjacent bent steel bars 2 is 50 cm.

[0033] In this embodiment, a plurality of hexagonal concrete blocks 401 are evenly spaced on the surface of the cone slope, and a mortar layer 402 is cast between adjacent hexagonal concrete blocks 401. The mortar layer 402 is cast using ultra-high performance mortar, and the main components of the ultra-high performance mortar are cementitious materials (including cement, silica fume), steel fiber, river sand, water reducer, water, etc. The cement used is general-purpose silicate cement of grade 42.5 or above, with a water retention rate of not less than 80%, and a mortar compressive strength of not less than 100 MPa. The hexagonal concrete blocks 401 and the mortar layer 402 form a concrete mortar cone slope layer 4, and one end of the bent steel bar 2 extends into the concrete mortar cone slope layer 4.

[0034] In this embodiment, a concrete frame 3 is arranged between the cone slope surface and the concrete mortar cone slope layer 4; one end of the bent steel bar 2 is extended into the concrete mortar cone slope layer 4, or one end of the bent steel bar 2 is extended into the concrete frame 3. The concrete frame 3 can fix the soil and prevent the concrete mortar cone slope layer 4 from collapsing. Even if the soil collapses, the frame structure can withstand part of the force.

[0035] In this embodiment, a fine stone concrete layer 6 is provided on the top of the slope, and the other end of the bent steel bar 2 extends into the fine stone concrete layer 6. The fine stone concrete layer 6 can play a certain waterproof and leveling role.

[0036] In this embodiment, it also includes: a stepped frame slope-fixing structure 7, which is fixedly arranged on the base of the cone slope; and a diagonal brace 8, which is arranged on the left and right sides of the stepped frame slope-fixing structure 7, one end of which is fixedly connected to the stepped frame slope-fixing structure 7, and the other end extends downward and is fixedly connected to the base of the cone slope. Micro piles 9 are vertically buried under the base of the cone slope, and the top surface of the micro piles 9 is butted against the lower surface of the stepped frame slope-fixing structure 7. Figure 1 and Figure 3As shown, there are multiple stepped frame slope-fixing structures 7, and the multiple stepped frame slope-fixing structures 7 are arranged in sequence in the horizontal direction in order of height. The lower stepped frame slope-fixing structures 7 are arranged close to the cone slope. The stepped frame slope-fixing structures 7 are arranged from low to high from left to right because the soil in the cone slope is arranged from low to high from left to right, and the soil has continuity when it slides. The sliding of a small piece of soil may cause the subsequent soil to slide. Therefore, setting up a frame structure can not only fix the soil, but also prevent the soil from continuing to slide when it slides.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A scour-resistant cone slope structure, comprising a cone base (1), a cone slope and a slope top, It is characterized in that Also includes: A concrete layer (5), wherein the concrete layer (5) is formed by pouring ultra-high performance concrete and is arranged at the junction of the cone base (1) and the cone slope and at the junction of the cone slope and the slope top. A bent steel bar (2) is embedded in the concrete layer (5), and the two ends of the bent steel bar (2) extend into the cone base (1) and the cone slope respectively, or the two ends of the bent steel bar (2) extend into the slope top and the cone slope respectively.

2. The scour-resistant cone slope structure according to claim 1, It is characterized in that There are a plurality of bent steel bars (2), and the lateral spacing between adjacent bent steel bars (2) is 50 cm.

3. The scour-resistant cone slope structure according to claim 1, It is characterized in that A plurality of hexagonal concrete blocks (401) are evenly spaced on the surface of the conical slope, ultra-high performance mortar is poured between adjacent hexagonal concrete blocks (401) to form a mortar layer (402), the hexagonal concrete blocks (401) and the mortar layer (402) constitute a concrete mortar conical slope layer (4), and one end of the bent steel bar (2) extends into the concrete mortar conical slope layer (4).

4. The scour-resistant cone slope structure according to claim 3, It is characterized in that A concrete frame (3) is provided between the conical slope surface and the concrete mortar conical slope layer (4); one end of the bent steel bar (2) extends into the concrete mortar conical slope layer (4), or one end of the bent steel bar (2) extends into the concrete frame (3).

5. The scour-resistant cone slope structure according to claim 4, It is characterized in that A fine stone concrete layer (6) is provided on the top of the slope, and the other end of the bent steel bar (2) extends into the fine stone concrete layer (6).

6. The scour-resistant cone slope structure according to claim 1, It is characterized in that Also includes: A stepped frame slope-fixing structure (7), wherein the stepped frame slope-fixing structure (7) is fixedly arranged on the base of the conical slope; An oblique brace (8) is arranged on the left and right sides of the stepped frame slope fixing structure (7), one end of which is fixedly connected to the stepped frame slope fixing structure (7), and the other end of which extends downward and is fixedly connected to the base of the conical slope.

7. The scour-resistant cone slope structure according to claim 6, It is characterized in that Also includes: A micropile (9) is vertically buried below the base of the conical slope, and the top surface of the micropile (9) is butted against the bottom surface of the stepped frame slope-fixing structure (7).

8. The scour-resistant cone slope structure according to claim 6, It is characterized in that There are a plurality of the stepped frame slope-fixing structures (7), and the plurality of the stepped frame slope-fixing structures (7) are arranged in sequence in a horizontal direction in order of height, with the lower stepped frame slope-fixing structures (7) being arranged close to the conical slope.

9. The scour-resistant cone slope structure according to claim 1, It is characterized in that The cone base (1) is a trapezoidal structure that is narrow at the top and wide at the bottom.

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