A soil target structure suitable for use in a rain area

Abstract

The application discloses a soil target structure suitable for rainy areas, which comprises a lower base layer arranged on the upside of the ground and an upper base layer arranged on the top of the lower base layer, the lower base layer and the upper base layer are divided into multiple layers and are subjected to laying and compacting operations, and a wide geogrid is arranged between each layer; each layer of the lower base layer and the upper base layer is evenly divided into multiple layers, and a narrow geogrid is arranged between the multiple layers in the range of the slope; the slope ratio of the upper base layer is smaller than that of the lower base layer, so that a connecting platform is formed between the upper base layer and the lower base layer; the slope of the lower base layer and the upper base layer is fully paved with plant bags, and the plant bags are connected together through connecting buckles between the plant bags and at the connecting positions of the plant bags and the narrow geogrid; a drainage side ditch and a water interception ditch are arranged at the slope foot of the lower base layer and the upper base layer respectively. The application can not only satisfy the rainwater erosion prevention of the high slope of the target structure, improve the stability of the target structure, but also save the cost, and is economic and safe.

Description

Technical Field

[0001] This invention belongs to the field of shooting range construction technology and relates to a device used for shooting practice, specifically a soil target structure suitable for rainy areas. Background Technology

[0002] A shooting range is a training ground for target practice. Generally, shooting ranges are used by the military or police departments for shooting training of their personnel. Shooting ranges are divided into indoor and outdoor types. Military shooting ranges are typically located outdoors and use retaining walls as the receiving mechanism.

[0003] A firing range bulletproof wall is a new type of structure used behind targets to stop projectiles. Essentially, its surface must allow for sufficient penetration depth and rapid deceleration of the projectile, minimizing ricochets. Target barriers are bulletproof walls used in military firing. The firing range bulletproof wall is a crucial component for protecting personnel and equipment, and its construction quality is closely related to the effectiveness of the firing range.

[0004] The bulletproof wall at the firing range is a bulletproof wall used for military firing. The height of the bulletproof wall should not be less than the following: 1. 3 meters for firing ranges with a firing distance of 25 meters; 2. 6 meters for firing ranges with a firing distance of 50 meters; 3. When using a controller, the height of the bulletproof wall should ensure that the bullet cannot fly over the top of the target barrier when the gun is fired at any angle.

[0005] Bulletproof walls at firing ranges are typically constructed by piling up thick layers of earth, which can be made from materials such as soil, sandbags, bricks, and concrete. Their thickness should ensure that projectiles cannot penetrate them; alternatively, they can be dug directly from existing hills.

[0006] Earthen bulletproof ranges are generally quite high. In rainy areas, when ordinary grass layers are used to protect the slopes of high earthen bulletproof walls, the soil on the surface of the wall is easily loosened by rainwater, and the roots of the grass are easily detached. After being washed away by rainwater, this can cause a downward slope, resulting in poor protection.

[0007] In existing technologies, soil-based bulletproof walls in rainy areas are generally protected by masonry. However, masonry protection cannot meet the requirements for target shooting. Often, a non-rigid material must be installed on the outside of the masonry protection to meet the shooting requirements. Therefore, this type of slope protection is expensive and not economical. Summary of the Invention

[0008] To address the issue that earthen bulletproof walls are prone to surface landslides in rainy areas, and that conventional masonry protection methods are costly and uneconomical, this technical solution provides an earthen retaining structure suitable for rainy regions. It involves additionally installing narrow geogrids at the slope of the earthen base layer and replacing the conventional direct seeding with multiple planting bags stacked along the slope, increasing the stability of the grass roots. Furthermore, connecting the multiple planting bags together with fasteners further secures the surface of the earthen bulletproof wall, effectively preventing the surface from becoming loose and prone to landslides. This effectively solves the aforementioned problems.

[0009] This invention is achieved through the following technical solution:

[0010] A soil retaining structure suitable for rainy areas includes a lower base layer set on the ground surface and an upper base layer set on top of the lower base layer. The lower and upper base layers are laid and compacted in multiple layers, with a wide geogrid laid between each layer. Each layer of the lower and upper base layers is evenly divided into multiple layers, with narrow geogrids set between the multiple layers along the slope. The slope ratio of the upper base layer is smaller than that of the lower base layer, forming a connecting platform between the upper and lower base layers. The outer surfaces of both the lower and upper base layers are fully covered with planting bags, which are connected together by fasteners. Drainage ditches and intercepting ditches are respectively set at the toe of the slopes of the lower and upper base layers.

[0011] Furthermore, a concrete base is provided on the underside of the planting bags at the bottom of the lower and upper base layers, and the bottom planting bags are fixed in place by steel bars in the concrete base. The concrete base of the upper base is embedded in the top layer of the lower base, and the concrete base of the lower base is embedded in the ground.

[0012] Furthermore, both the lower and upper base layers contain clay and / or silt and / or lime soil and / or cement-lime soil, which are laid and compacted in layers.

[0013] Furthermore, the wide geogrid and narrow geogrid can be made of plastic geogrid or / and steel-plastic geogrid or / and glass fiber geogrid or / and polyester warp-knitted geogrid; on the slopes of the upper and lower base layers, the connection between the wide geogrid or narrow geogrid and the planting bag needs to be fixed by connecting buckles.

[0014] Furthermore, the connecting buckle includes a connecting piece and conical spikes disposed on the top and bottom surfaces of the connecting piece; during connection, the conical spikes are inserted into the planting bags placed on its upper and lower sides.

[0015] Furthermore, the connecting buckle is made of metal.

[0016] Furthermore, the slope ratio of the upper base layer is 1:1.5; the slope ratio of the lower base layer is 1:1.75; the slope of the upper base layer is slightly steeper than that of the lower base layer.

[0017] Furthermore, the planting bag is filled with soil, and grass seeds are evenly mixed in the soil.

[0018] Furthermore, the filling soil includes fine-grained soil and / or organic soil and / or sandy soil. When the filling soil is a mixture of multiple soil types, the multiple soil types need to be mixed evenly.

[0019] Furthermore, a rapid flow channel is provided between the intercepting ditch and the drainage ditch, and the drainage ditch is connected to the outer ditch or river; the drainage ditch can be a concrete drainage ditch or an earthen drainage ditch; the intercepting ditch can be a concrete intercepting ditch or an earthen intercepting ditch, and the rapid flow channel can be a concrete rapid flow channel or an earthen rapid flow channel. Beneficial effects

[0020] The soil target retaining structure proposed in this invention, suitable for rainy areas, has the following advantages compared with existing technologies:

[0021] This technical solution involves additionally installing narrow geogrids at the slope of the soil base layer and replacing the conventional direct seeding with multiple planting bags stacked along the slope to increase the stability of the grass roots. Furthermore, multiple planting bags are connected together using fasteners to further secure the surface of the soil-based bulletproof wall, effectively preventing the soil surface from becoming loose and prone to landslides. This not only meets the requirements for protecting high slopes from rainwater erosion and improving the stability of the bulletproof wall, but also offers lower costs compared to other bulletproof walls of the same height, making it both economical and safe. Attached Figure Description

[0022] Figure 1 This is a side sectional view of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the connection of the planting bags in this invention.

[0024] Figure 3 This is a top view of the overall structure of the present invention.

[0025] Figure 4 This is a side sectional view of the overall structure of Embodiment 2 of the present invention.

[0026] The markings in the attached diagram are: 11-upper base layer, 12-lower base layer, 2-wide geogrid, 3-narrow geogrid, 4-vegetation bag, 5-concrete base layer, 6-intercepting ditch, 7-drainage ditch, 8-connecting buckle, 9-platform, 10-flow channel, 13-connection part. Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. Example 1

[0028] like Figure 1 As shown, a soil retaining structure suitable for rainy areas includes a lower base layer 12 disposed on the upper side of the ground and an upper base layer 11 disposed on the top surface of the lower base layer 12. In this embodiment, the total height of the lower base layer 12 and the upper base layer 11 is greater than 15 meters. Both the lower base layer 12 and the upper base layer 11 contain clay and / or silt and / or lime soil and / or cement lime soil, and the clay and / or silt and / or lime soil and / or cement lime soil are laid and compacted in multiple layers, with a wide geogrid 2 laid between each layer.

[0029] The slope positions of the lower base layer 12 and the upper base layer 11 are each evenly divided into multiple layers, and narrow geogrids 3 are set in the slope range between the multiple layers.

[0030] The slope ratio of the upper base layer 11 is smaller than that of the lower base layer 12, forming a connecting platform 9 between the upper base layer 11 and the lower base layer 12. The slope ratio of the upper base layer 11 is 1:1.5; the slope ratio of the lower base layer 12 is 1:1.75; the slope of the upper base layer 11 is slightly steeper than that of the lower base layer 12.

[0031] The outer surfaces of the upper base layer 11 and the lower base layer 12 are fully covered with vegetation bags 4. The vegetation bags 4 on the slopes of the upper base layer 11 and the lower base layer 12 are fully covered by stacking. The vegetation bags 4 at the bottom of the upper base layer 11 and the lower base layer 12 are provided with a concrete base layer 5 underneath. The concrete base layer 5 needs to be fixed with steel bars to the bottom vegetation bags 4 to prevent them from shifting.

[0032] The concrete base layer 5 of the upper base layer 11 is set at the toe of the slope of the upper base layer 11 and is embedded and fixed in the top layer of the lower base layer 12. The concrete base layer 5 of the lower base layer 12 is embedded and fixed in the ground at the toe of the slope of the lower base layer 12.

[0033] The top surface of the upper layer 11 is covered with 3 to 5 layers of vegetation bags 4; in this embodiment, it is 3 layers. The laying method is as follows: Figure 1 and Figure 2 As shown, the layers are laid in an alternating stacking pattern.

[0034] All adjacent planting bags 4 are connected together by a connecting buckle 8; the connecting buckle 8 includes a connecting piece and conical spikes on the top and bottom surfaces of the connecting piece; when connected, the conical spikes are inserted into the planting bags 4 placed above and below it. The connecting buckle 8 is made of metal.

[0035] The planting bag 4 is filled with filling soil, which contains grass seeds evenly mixed in. The filling soil includes fine soil and / or organic soil and / or sand. When the filling soil is a mixture of multiple soil types, the multiple soil types and grass seeds need to be mixed evenly before filling the bag.

[0036] The wide geogrid 2 and narrow geogrid 3 can be made of plastic geogrid or / and steel-plastic geogrid or / and glass fiber geogrid or / and polyester warp-knitted geogrid; located on the slope of the upper base layer 11 and the lower base layer 12, the connection between the wide geogrid 2 or narrow geogrid 3 and the vegetation bag 4 needs to be fixed by the connecting buckle 8.

[0037] A water interception ditch 6 is set at the toe of the slope of the upper base layer 11. The water interception ditch 6 can be a concrete water interception ditch or an earthen water interception ditch.

[0038] A drainage ditch 7 is provided at the toe of the slope of the lower base layer 12. The drainage ditch 7 can be a concrete drainage ditch or an earthen drainage ditch.

[0039] like Figure 3 As shown, a rapid flow channel 10 is provided between the intercepting ditch 6 and the drainage ditch 7, and the drainage ditch 7 is connected to the outer ditch or river; the rapid flow channel 10 can be a concrete rapid flow channel or an earthen rapid flow channel. Example 2

[0040] This solution is not only applicable to the construction of new target retaining structures, but also to the expansion and renovation of existing soil target retaining structures. When expanding and renovating existing soil target retaining structures, the renovated structure will look like this: Figure 4 As shown:

[0041] The contact surface between the old soil retaining structure and the enlarged new section is changed to a stepped connection 13. During construction, the slope debris needs to be removed. The step width should be no less than 1 meter and the step height no more than 0.6 meters. This can expand the contact surface between the old soil retaining structure and the new section, making the connection between the two more solid and stable. The outer layer of the old soil retaining structure away from the new section is also fully covered with vegetation bags 4. Since the old soil retaining structure has been used for many years, the slope is relatively stable, and it is inconvenient to lay wide geogrids 2 and narrow geogrids 3 on the old soil retaining structure. However, before laying the vegetation bags 4, the debris fill on the slope of the old soil retaining structure should be removed as much as possible to create space for the vegetation bags. At the same time, a concrete base layer 5 should be constructed at the toe of the slope of the old soil retaining structure. At the same time, intercepting ditches 6, drainage ditches 7, and rapid flow channels 10 should be constructed.

[0042] The positional and connection relationships between other structures in this embodiment are the same as those in Embodiment 1. Further explanation is omitted here.

Claims

1. A soil target retaining structure suitable for rainy areas, characterized in that: The system includes a lower base layer (12) set on the ground surface and an upper base layer (11) set on the top surface of the lower base layer (12). The lower base layer (12) and the upper base layer (11) are laid and compacted in multiple layers, and a wide geogrid (2) is laid between each layer. Each layer of the lower base layer (12) and the upper base layer (11) is evenly divided into multiple layers, and a narrow geogrid (3) is set between the multiple layers on the slope. The slope ratio of the upper base layer (11) is smaller than that of the lower base layer (12), so that a connecting platform (9) is formed between the upper base layer (11) and the lower base layer (12). The outer surfaces of the lower base layer (12) and the upper base layer (11) are fully covered with geogrid. The planting bags (4) are filled with soil, and grass seeds are evenly mixed in the soil. The planting bags (4) are connected together by connecting buckles (8). A concrete base (5) is set on the lower side of the planting bags (4) at the bottom of the lower base (12) and the upper base (11). The concrete base (5) is fixed to the bottom planting bags (4) by steel bars. The concrete base (5) of the upper base (11) is embedded in the top layer of the lower base (12). The concrete base (5) of the lower base (12) is embedded in the ground. Drainage ditches (6) and intercepting ditches (7) are respectively set at the slope toe of the lower base (12) and the upper base (11).

2. The soil target structure suitable for rainy areas according to claim 1, characterized in that: The lower base layer (12) and the upper base layer (11) both contain clay and / or silt and / or lime soil and / or cement lime soil, and are laid and compacted in layers.

3. The soil target structure suitable for rainy areas according to claim 1, characterized in that: The wide geogrid (2) and narrow geogrid (3) can be made of plastic geogrid or / and steel-plastic geogrid or / and glass fiber geogrid or / and polyester warp-knitted geogrid; on the slope of the upper base layer (11) and the lower base layer (12), the position where the wide geogrid (2) or narrow geogrid (3) connects with the planting bag (4) is fixed by a connecting buckle (8).

4. A soil target structure suitable for rainy areas according to claim 1 or 3, characterized in that: The connecting buckle (8) includes a connecting piece and cone-shaped spikes disposed on the top and bottom surfaces of the connecting piece; when connected, the cone-shaped spikes are inserted into the planting bags (4) placed on its upper and lower sides.

5. A soil target retaining structure suitable for rainy areas according to claim 4, characterized in that: The connecting buckle (8) is made of metal.

6. A soil target structure suitable for rainy areas according to claim 1, characterized in that: The slope ratio of the upper base layer (11) is 1:1.5; the slope ratio of the lower base layer (12) is 1:1.75; the slope of the upper base layer (11) is slightly steeper than that of the lower base layer (12).

7. A soil target retaining structure suitable for rainy areas according to claim 1, characterized in that: The filling soil in the planting bag (4) includes fine-grained soil and / or organic soil and / or sand. When the filling soil is a mixture of multiple soil types, the multiple soil types need to be mixed evenly.

8. A soil target structure suitable for rainy areas according to claim 1, characterized in that: A rapid flow channel (10) is provided between the intercepting ditch (7) and the drainage ditch (6), and the drainage ditch (6) is connected to the outer ditch or river; the drainage ditch (6) can be a concrete drainage ditch or an earthen drainage ditch; the intercepting ditch (7) can be a concrete intercepting ditch or an earthen intercepting ditch, and the rapid flow channel (10) can be a concrete rapid flow channel or an earthen rapid flow channel.

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