Field detection device for gravel embedding rate

Abstract

The utility model relates to the technical field of road and bridge construction, in particular to a gravel embedding rate field detection device, which comprises a square base placed above a gravel layer, a cylindrical barrel neck inserted on the top surface of the square base, an elastic film fixed at a bottom notch of the square base, and water filled in the square base. The square base is connected into the side supports in a sliding mode, a detachable bottom plate is arranged below the square base and located between two side plates of the side supports, and scale marks are arranged on the surface of the cylindrical barrel neck. The field detection device for the gravel embedding rate has the beneficial effects that after water is injected into the square base and the drawable bottom plate is drawn out from the bottom of the square base, the gravel layer upwards supports the elastic film, so that the water in the square base enters the cylindrical barrel neck, and the gravel embedding rate is detected. The water level height is read from the scale marks on the surface of the cylindrical barrel neck, and the gravel embedding rate is calculated.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction, in particular to an on-site detection device for crushed stone embedding rate. Background Art

[0002] In the current road construction in my country, most of the sand and gravel are mined as road base materials, and are usually used as graded crushed stone and cement-stabilized crushed stone in the base. The strength of cement-stabilized crushed stone mainly depends on the interlocking principle between the crushed stones. At the same time, there is enough mortar volume to fill the gaps in the aggregate. It has high initial strength, and the strength increases with age and quickly forms a board, so it has higher strength, good permeability and frost resistance.

[0003] In the prior art, graded crushed stone is a mixture composed of aggregates of various sizes and particle sizes. Graded crushed stone has good water permeability, diffusion stress, and load-bearing transition effects, can enhance the strength of the pavement structure, and take into account the drainage function of the pavement structure. In order to form a stable embedded cable structure between the crushed stone layer and the asphalt pavement, the crushed stone layer needs to have a rough surface, and the crushed stone should also be better embedded in the crushed stone layer, so as to avoid the slippage of the asphalt mixture and ensure the overall stability of the pavement structure. At the same time, the crushed stone embedding rate is also an important quality control indicator proposed when spreading crushed stone in road construction, but there is currently a lack of intuitive equipment for convenient and convenient on-site detection of the crushed stone embedding rate.

[0004] Therefore, we need an on-site detection device for gravel embedding rate, which is used to solve the problem that the existing gravel embedding rate is not easy to be intuitively presented after on-site detection, and can intuitively present the gravel embedding rate on-site. Utility Model Content

[0005] The utility model aims to provide an on-site detection device for gravel embedding rate, so as to solve the problem in the above-mentioned background technology that the existing gravel embedding rate is not convenient to be visually presented after on-site detection, and can visually present the gravel embedding rate on-site.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an on-site detection device for gravel embedding rate, comprising a square base, which is placed above the gravel layer, a cylindrical barrel neck is inserted into the top surface of the square base, an elastic film is fixed to the bottom groove of the square base, water is filled inside the square base, the square base is slidably connected to the side support, a detachable bottom plate is provided below the square base, the detachable bottom plate is located between the two side plates of the side support, and a scale mark is provided on the surface of the cylindrical barrel neck.

[0007] Preferably, the cylindrical barrel neck has a square frame structure with the notch facing, a circular opening is centrally provided on the top surface of the square base, the bottom end of the cylindrical barrel neck penetrates through the circular opening, and the bottom surface of the cylindrical barrel neck and the bottom surface of the top plate of the square base are coplanar, and the outer wall of the cylindrical barrel neck is fixed on the surface of the circular opening.

[0008] Preferably, the side support has a "C"-shaped plate structure, and the square base is located between two parallel side plates of the side support.

[0009] Preferably, baffles are fixed on two mutually parallel side plates of the side support, the baffles are perpendicular to the side plates of the side support, and the square base is located between the baffle and the third plate body of the side support.

[0010] Preferably, a fixing knob is screwed on the surface of the baffle, and the fixing knob penetrates through the baffle and clamps the square base.

[0011] Preferably, scales are provided at the ends of two parallel side plates of the side support for reading the protruding height of the detachable bottom plate.

[0012] Preferably, two bubble levels are fixed on the top surface of the square base, and the two bubble levels are symmetrically distributed at an oblique angle with respect to the center of the top surface of the square base.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For the on-site detection device of the gravel embedding rate proposed by the present utility model, after water is injected into the square base and the detachable bottom plate is drawn out from the bottom of the square base, the gravel layer pushes up the elastic film, so that the water inside the square base enters the cylindrical barrel neck, and the water level height is read from the scale mark on the surface of the cylindrical barrel neck, and the gravel embedding rate is calculated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a top view of the structure of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the side support of the present utility model;

[0018] Figure 4 is a schematic diagram of the on-site detection state of the present utility model.

[0019] In the figure: cylindrical barrel neck 1, square base 2, side support 3, elastic film 4, detachable bottom plate 5, fixing knob 6, bubble level 7, water 8, gravel layer 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to clearly and completely describe the purpose and technical solution of the present utility model and make its advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of them, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a on-site detection device for the gravel embedding rate, including a square base 2 placed above the gravel layer 9. A cylindrical barrel neck 1 is inserted into the top surface of the square base 2. An elastic film 4 is fixed at the bottom notch of the square base 2. Water 8 is contained inside the square base 2. The square base 2 is slidably connected in the side support 3. A detachable bottom plate 5 is provided below the square base 2, and the detachable bottom plate 5 is located between the two side plates of the side support 3. Scale markings are provided on the surface of the cylindrical barrel neck 1.

[0022] The square water storage device is composed of a square base 2, a cylindrical barrel neck 1, and an elastic film 4. The square base 2 and the cylindrical barrel neck 1 are preferably made of transparent plastic plates with a thickness of 5 - 15 mm, preferably 10 mm. The side length of the square base 2 is not less than 30 cm, preferably 50 cm. The height is not less than 20 cm, preferably 30 cm. The height of the cylindrical barrel neck 1 is not less than 40 cm, preferably 50 cm, and scale markings are provided on the outer side of the cylindrical barrel neck 1. The elastic film 4 is located below the square base 2 and forms a closed whole with the square base 2. The elastic film 4 should have high ductility and strength, preferably natural latex or rubber, with a thickness of 1 - 3 mm, preferably 2 mm. The detachable bottom plate 5 is located below the elastic film 4, made of stainless steel, with the same size as the square base and a thickness of 1 - 3 mm, preferably 2 mm.

[0023] The side support 3 is in a "C"-shaped plate-like structure. The square base 2 is located between the two parallel side plates of the side support 3. Baffles are fixed on both of the two parallel side plates of the side support 3. The baffles are perpendicular to the side plates of the side support 3, and the square base 2 is located between the baffle and the third plate body of the side support 3. A fixing knob 6 is screwed on the surface of the baffle. The fixing knob 6 passes through the baffle and clamps the square base 2. The side support 3 is located on the side of the square base 2, with the same height as the square base and the same length as the side length of the square base. The baffle is made of stainless steel with a thickness of 8 mm - 12 mm, preferably 10 mm. The fixing knob 6 is provided at the edge of the baffle, which can fix the baffle and the square base 2. Scales are provided on the outside of the side plate, which can judge the extending height of the detachable bottom plate 5.

[0024] The bubble level 7 is composed of a transparent circular tube and a liquid. The tube is filled with a transparent liquid, and there is a small bubble in the liquid. It is located on the upper part of the square base, and two are set diagonally.

[0025] Place the gravel embedding rate on-site detection device on the upper part of the gravel layer to be detected, adjust the two opposite side supports 3 so that the removable bottom plate 5 of the device contacts the gravel, and observe the bubble level 7 to make the bubbles of the two bubble levels 7 in the center. After leveling, tighten the side supports and record the scale Δh of the side supports. Pour water into the square water reservoir from the cylindrical barrel neck 1 and add water to the 0 scale position. After the liquid level stabilizes, quickly remove the removable bottom plate 5 so that the water in the square water reservoir fully contacts the gravel layer through the elastic film 4, and close the other two side bottom plates to form a closed space in the bottom plate. After the liquid level stabilizes, record the scale Δv on the cylindrical barrel neck.

[0026] Calculation of the stone embedding rate κ

[0027]

[0028] Where d is the side length of the square base.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the embedding rate of gravel on site, comprising a square base (2) placed above a gravel layer (9), characterized in that: The top surface of the square base (2) is plugged with a cylindrical barrel neck (1). An elastic film (4) is fixed at the bottom notch of the square base (2). Water (8) is contained inside the square base (2). The square base (2) is slidably connected in the side support (3). A detachable bottom plate (5) is provided below the square base (2). The detachable bottom plate (5) is located between the two side plates of the side support (3). Scale marks are provided on the surface of the cylindrical barrel neck (1).

2. The on-site detection device for gravel embedding rate according to claim 1, characterized in that: The cylindrical barrel neck (1) has a square frame structure with a notch facing. A circular opening is centrally formed on the top surface of the square base (2). The bottom end of the cylindrical barrel neck (1) penetrates through the circular opening, and the bottom surface of the cylindrical barrel neck (1) and the bottom surface of the top plate of the square base (2) are coplanar. The outer wall of the cylindrical barrel neck (1) is fixed on the surface of the circular opening.

3. The on-site detection device for gravel embedding rate according to claim 1, characterized in that: The side support (3) has a "C"-shaped plate structure. The square base (2) is located between the two parallel side plates of the side support (3).

4. The on-site detection device for gravel embedding rate according to claim 3, characterized in that: On each of the two parallel side plates of the side support (3), a baffle is fixed. The baffle is perpendicular to the side plate of the side support (3), and the square base (2) is located between the baffle and the third plate body of the side support (3).

5. The on-site detection device for gravel embedding rate according to claim 4, characterized in that: A fixing knob (6) is screwed on the surface of the baffle. The fixing knob (6) clamps the square base (2) after passing through the baffle.

6. The on-site detection device for gravel embedding rate according to claim 3, characterized in that: Scales are provided at the ends of the two parallel side plates of the side support (3) for reading the protruding height of the detachable bottom plate (5).

7. The on-site detection device for gravel embedding rate according to claim 1, characterized in that: Two bubble levels (7) are fixed on the top surface of the square base (2). The two bubble levels (7) are symmetrically distributed at an oblique angle about the center of the top surface of the square base (2).

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