Comprehensive wind prevention and sand fixation structure for railway or highway
By setting up multiple windbreak and sand-fixing belts and plant sand-fixing structures on both sides of railway or highway subgrades, the problem of roadbeds being buried by wind and sand in desert areas has been solved, achieving a comprehensive sand-fixing effect of safe operation and ecological optimization.
Patent Information
- Application Number
- CN202520064218.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
When constructing railways or highways in desert areas, sandstorms can easily accumulate and bury the roadbed, posing safety hazards and endangering the ecological environment.
A comprehensive sand control system with multiple windbreak and sand-fixing belts is adopted, including mist spray sand-fixing belts, fire isolation belts, sand-fixing belts combining reed grid sand barriers and shrubs, sand-blocking belts combining trees and shrubs, and high vertical sand barrier sand-blocking belts. They are deployed on the prevailing windward side and the leeward side of the roadbed according to the characteristics of wind and sand flow, combining plant sand fixation and artificial structure sand blocking.
It effectively prevents the roadbed from being buried by wind and sand, ensures the safe operation of railways or highways, and optimizes the ecological environment by using a combination of plants and structures to achieve long-term sand fixation.
Smart Images
Figure CN223872930U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a windproof sand-fixing structure, particularly relates to a comprehensive windproof sand-fixing structure of railway or highway belongs to windproof sand-fixing technical field. BACKGROUND
[0002] China is one of the countries with the widest distribution of desert in the world, and the desert area has fragile ecology and poor natural conditions, with little annual precipitation, large evaporation, extreme shortage of water resources, poor soil, sparse vegetation, strong wind and sand activity, serious land desertification, and large area of mobile dunes and sandy land. When building railway and highway projects in the desert area, there is always the risk of being buried by wind and sand. Because sand particles move with strong winds and sink and accumulate when encountering obstacles, the railway (highway) is actually a long barrier that does not eliminate or reduce the harm of wind and sand, but rather becomes a sand-blocking wall that blocks the movement and passage of wind and sand, causing sand accumulation. When the accumulation reaches a certain height, the sand will enter the railway (highway) itself, which may accelerate the damage of related facilities and equipment, or even bury the railway (highway), endangering the safety of personnel.
[0003] The multi-channel windproof sand-fixing belt railway (highway) comprehensive sand-fixing system effectively realizes the complementary advantages of different windproof sand-fixing methods, and arranges various windproof sand-fixing belts according to the characteristics of wind and sand flow on the windward side and the leeward side of the railway (highway) subgrade, ensuring that the subgrade is not buried by wind and sand and ensuring the safe operation of the railway (highway), while optimizing the ecological environment. SUMMARY
[0004] The utility model aims at overcoming the above technical defects and providing a comprehensive windproof sand-fixing structure for railway or highway to prevent the subgrade from being buried by wind and sand, avoid desertification, optimize the ecological environment, and ensure the safe operation of the railway.
[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme
[0006] A comprehensive windproof sand-fixing structure for railway or highway, comprising a subgrade, a first windproof sand-fixing belt arranged on one side of the subgrade in the main wind direction, and a second windproof sand-fixing belt arranged on the other side of the subgrade in the leeward direction.
[0007] Further, the first windproof sand-fixing belt is sequentially provided with a fog spraying sand-fixing belt, a fireproof isolation belt, a reed square sand barrier and shrub combination sand-fixing belt, a reed square sand barrier sand-fixing belt, an arbor shrub combination sand-fixing belt, and two alternating and repeated sand accumulation emptying belts and high vertical sand barrier sand-fixing belts from the subgrade foot to the outside.
[0008] Further, the second wind-preventing sand-fixing belt is sequentially provided with a fog spraying sand-fixing belt, a fireproof isolation belt, a reed square sand barrier and shrub combined sand-fixing belt, a reed square sand barrier sand-fixing belt, an arbor-shrub combined sand-blocking belt, a sand accumulation empty belt and a high vertical sand barrier sand-blocking belt from the roadbed slope foot.
[0009] Further, the fog spraying sand-fixing belt is provided with a sprinkler head connected with a sprinkler device.
[0010] Further, the fireproof isolation belt is paved with eggs and gravel soil.
[0011] Further, the reed square sand barrier and shrub combined sand-fixing belt comprises a plurality of semi-buried reed squares.
[0012] Further, the arbor-shrub combined sand-blocking belt is provided with reed squares.
[0013] Further, the high vertical sand barrier sand-blocking belt is made of concrete plates.
[0014] The utility model has the following beneficial effects: multiple wind-preventing sand-fixing belts are used as a comprehensive sand-preventing system of a public (railway) road, the advantages of different wind-preventing sand-fixing methods are complemented, various wind-preventing sand-fixing belts are arranged on the side of the main wind direction and the side away from the main wind direction of the roadbed of the public (railway) road according to the characteristics of wind-sand flow, the roadbed is ensured not to be buried by wind-sand, the safe operation of the public (railway) road is ensured, and the ecological environment is optimized. Specifically, the arrangement of "outer blocking and inner fixing, outer high and inner low" is used. Before the plants grow up, the outer 2.0m high vertical sand barrier sand-blocking belt is used to block sand, and the high reed square sand barrier sand-fixing belt is used near the public (railway) road. With the erosion of wind-sand, the high vertical sand barrier sand-blocking belt and the reed square sand barrier sand-fixing belt are invalidated after several years. At this time, the plants planted at this time replace the wind-preventing sand-fixing function, the tall trees on the outer side are used to reduce the wind speed and intercept sand, and the shrubs on the side near the public (railway) road are used to fix the flowing sand with dense branches and leaves and developed root systems, so that the sand is intercepted layer by layer, and a gradient advanced sand-preventing system is formed. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure schematic view of the utility model.
[0016] The figure mark explanation: 1 is a fog spraying sand-fixing belt, 2 is a fireproof isolation belt, 3 is a reed square sand barrier and shrub combined sand-fixing belt, 4 is a reed square sand barrier sand-fixing belt, 5 is an arbor-shrub combined sand-blocking belt, 6 is a sand accumulation empty belt, and 7 is a high vertical sand barrier sand-blocking belt. DETAILED DESCRIPTION
[0017] In order to make the utility model purposes, technical scheme and advantages more clearly, the following will be further described in detail with the drawings and examples.
[0018] A comprehensive wind-preventing and sand-fixing structure of a railway or a highway comprises a roadbed, a first wind-preventing and sand-fixing belt is arranged on the side of the roadbed facing the main wind direction, a second wind-preventing and sand-fixing belt is arranged on the side of the roadbed away from the main wind direction, the first wind-preventing and sand-fixing belt has two high vertical sand barriers 7, and the second wind-preventing and sand-fixing belt has one high vertical sand barrier 7.
[0019] Further, the first wind-preventing and sand-fixing belt is sequentially provided with a fog spraying sand-fixing belt 1, a fireproof isolation belt 2, a reed square sand barrier and shrub combined sand-fixing belt 3, a reed square sand barrier sand-fixing belt 4, a tree-shrub combined sand barrier 5, two alternately arranged sand accumulation and emptying belts 6 and high vertical sand barriers 7 from the roadbed slope foot outward.
[0020] Further, the second wind-preventing and sand-fixing belt is sequentially provided with a fog spraying sand-fixing belt 1, a fireproof isolation belt 2, a reed square sand barrier and shrub combined sand-fixing belt 3, a reed square sand barrier sand-fixing belt 4, a tree-shrub combined sand barrier 5, a sand accumulation and emptying belt 6 and a high vertical sand barrier 7 from the roadbed slope foot outward.
[0021] Further, the fog spraying sand-fixing belt 1 is internally provided with a sprinkler head connected with a sprinkler device.
[0022] Specifically, the roadbed slope foot is irrigated in time by the sprinkler device to ensure the survival and growth of plants, the sand is prevented and fixed by the plants, and the roadbed is prevented from being eroded by wind and sand.
[0023] Further, the fireproof isolation belt is internally paved with eggs and gravel soil.
[0024] The eggs and gravel soil paved in the fireproof isolation belt can separate the fire from the roadbed when the fire occurs in a dry desert area, avoid safety accidents caused by the fire, and ensure the safety of railway (highway) facilities.
[0025] Further, the reed square sand barrier and shrub combined sand-fixing belt comprises a plurality of semi-buried reed squares.
[0026] The reed square sand barrier and shrub combined sand-fixing belt is a square sand barrier structure composed of semi-buried reeds, the sand barrier can fix sand for 5-10 years in the initial stage, provides protection for the growth of shrubs, and prevents the shrubs from being killed due to the flow of sand dunes, and the drought-resistant shrubs are selected to grow into developed root systems before the reed square sand barrier is disabled, and the sand is permanently fixed.
[0027] Further, the reed square is arranged in the sand blocking belt of the arbor-shrub combination.
[0028] The reed square sand barrier sand fixing belt fixes sand for 5-10 years in the initial stage, the reed absorbs water in the dew or rain, and the grass seeds falling in the reed square grow roots and develop into a developed root system before the reed square sand barrier is disabled, and the reed square sand barrier is permanently fixed.
[0029] The arbor tree species are selected from local drought-tolerant, high-temperature-tolerant, salt-tolerant and sand-fixing strong poplar and other arbor trees, the arbor trees can weaken the wind speed, but the water requirement is large, in order to reduce the maintenance cost of the sand-fixing forest in the later period and ensure the survival rate of the seedlings, only the shallow groundwater depth is small, and the plant can freely survive in the later period; other drip irrigation sections are planted with shrubs as sand protection forests, and drought-tolerant plants such as haloxylon, tamarix and calligonum are selected.
[0030] Further, the high vertical sand barrier sand blocking belt is made of a concrete plate.
[0031] In the embodiment, the high vertical sand barrier sand blocking belt is preferably made of a concrete plate with a height of about 2m, which blocks most of the wind sand, and forms a barrier at the outermost side of the roadbed, thereby ensuring the safety of the other six wind-proof and sand-fixing belts connected therewith.
[0032] In the sand accumulation empty belt, no reed square sand barrier is arranged, no grass is planted, and only sand is blocked and grass is cultivated. The high vertical sand barrier adjacent thereto blocks the wind sand, so that the wind sand is deposited to form a fixed sand accumulation area, and the sand accumulation empty belt also plays a sand-fixing role. In the abundant water period, the sand accumulation empty belt can grow plants suitable for the desert area.
[0033] Whether the first wind-proof and sand-fixing belt or the second wind-proof and sand-fixing belt is determined by the sand transport capacity calculation formula, and the sand transport capacity calculation formula is established according to the local measured meteorological data in the desert area, so that the calculation result is scientific and reasonable.
[0034] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A comprehensive windproof and sand-fixing structure for railways or highways, comprising a roadbed, characterized in that: The first wind-preventing and sand-fixing zone is provided with two high vertical sand barriers; the second wind-preventing and sand-fixing zone is provided with one high vertical sand barrier; the first wind-preventing and sand-fixing zone is sequentially provided, from the slope foot of the roadbed, with a mist-spraying sand-fixing zone, a fire-preventing isolation zone, a reed square sand barrier and shrub combined sand-fixing zone, a reed square sand barrier sand-fixing zone, an arbor-shrub combined sand-blocking zone, and two alternately repeated sand-accumulating empty zones and high vertical sand barrier zones; and the second wind-preventing and sand-fixing zone is sequentially provided, from the slope foot of the roadbed, with a mist-spraying sand-fixing zone, a fire-preventing isolation zone, a reed square sand barrier and shrub combined sand-fixing zone, a reed square sand barrier sand-fixing zone, an arbor-shrub combined sand-blocking zone, a sand-accumulating empty zone, and a high vertical sand barrier zone.
2. The railway or highway integrated windbreak and sand-fixation structure according to claim 1, characterized in that: The mist-spraying sand-fixing zone is provided with a sprinkler head connected to a sprinkler device.
3. The railway or highway integrated windbreak and sand-fixation structure according to claim 2, characterized in that: The fire-preventing isolation zone is paved with eggs and gravel soil.
4. The railway or highway integrated windbreak and sand-fixation structure according to claim 3, characterized in that: The reed square sand barrier and shrub combined sand-fixing zone comprises a plurality of semi-buried reed squares.
5. The railway or highway integrated windbreak and sand-fixation structure according to claim 4, characterized in that: The arbor-shrub combined sand-blocking zone is provided with reed squares.
6. The railway or highway integrated windbreak and sand-fixation structure according to claim 5, characterized in that: The high vertical sand barrier zone is made of a concrete plate.